Wild Dog Adventure Riding

General => General Bike Related Banter => Topic started by: katana on April 14, 2020, 05:46:01 pm

Title: KTM 300tpi
Post by: katana on April 14, 2020, 05:46:01 pm
I found this video.  I was under the misguided impression that the tpi wasn't for me.  Now I am intrigued.
Title: Re: KTM 300tpi
Post by: Crankshaft on April 14, 2020, 06:06:28 pm
I found this video.  I was under the misguided impression that the tpi wasn't for me.  Now I am intrigued.


NICE :drif: :drif: :drif:
Title: Re: KTM 300tpi
Post by: Ri on April 14, 2020, 10:33:13 pm
Faaark steaks most annoyingly nasal-voiced delivery ever, my ears tried to turn inside out :lamer:

Thankfully the bike sounded better :-[
Title: Re: KTM 300tpi
Post by: 2StrokeDan on April 14, 2020, 11:21:54 pm
Faaark steaks most annoyingly nasal-voiced delivery ever, my ears tried to turn inside out :lamer:

Thankfully the bike sounded better :-[

He is usually very good, this is not his best work though. The TPI is good, but it's not that much better than the carb models before it in practise. I have ridden both and the low-down improvement I would mostly

attribute to the absence of over-oiling at longer periods of low-rev riding found in the carb model. When you open up the TPI after extended periods of dawdling, there is no lag, no spluttering, it accelerates

smoothly and immediately, where the carb model could sometimes take a second to clear it's throat.  But this is a very small difference.
Title: Re: KTM 300tpi
Post by: Blikkies1 on April 14, 2020, 11:51:50 pm
I enjoyed the vid and his poor play on Clarkson, I think it was sarcastically aspris. I sadly currenrly don't have an enduro bike but if I did it would still be a normally aspirated 300 or even 250xcw, I love the 250xcw. Great machines! Seems like a great bike but i couldn't fix this thing with a skroewedraaier, cabletie and a tang 60km into a trail, remember - wait 5yrs for new tech to mature, with the current climate I'll have to wait 2022 + 5 years, sadly I'll be 50 so may opt for a trials bike.
Title: Re: KTM 300tpi
Post by: shark_za on April 15, 2020, 07:10:58 am
Yes and then open the bore up a little ; 300 what a bike.
You know that feeling when a guru tuner gets your 2-stroke jetting perfectly set, yes that.
All the time.
Title: Re: KTM 300tpi
Post by: Kortbroek on April 15, 2020, 08:20:36 am
Yes and then open the bore up a little ; 300 what a bike.
You know that feeling when a guru tuner gets your 2-stroke jetting perfectly set, yes that.
All the time.

And now you get to have multiple maps ready to go at the flip of a switch. Steep climbs and steps, flip the switch so you have tons of bottom end grunt, open and fast, just flip the switch to your more top end map. Loads of possibilities for the fast guys.

For the average joe at home, less fiddling with carbs to get jetting right. Don't get me wrong, I love carbs and once you understand them they're easy enough to get running well, but fuel injection is just hassle free. Ride and train at the coast then go ride Lesotho at 3000m without any changes to jetting.

edit: I'm only referring to enduro here. For long distance bikes I still prefer carbs because I can fix it next to the road.
Title: Re: KTM 300tpi
Post by: 2StrokeDan on April 15, 2020, 08:55:37 am
Yes, the hassle-free nature of the TPI is fantastic. It is an add-on to the play and leave nature of the 2stroke.

The reliability factor in still something I must get my head around, not so much that it will break, but that if it does, I cannot always fix it.

You do not find any cars with carbs, yet their F.I. gives really few problems, despite the numbers out there.
Title: Re: KTM 300tpi
Post by: DavidMorrisXp on April 15, 2020, 09:12:12 am
Faaark steaks most annoyingly nasal-voiced delivery ever, my ears tried to turn inside out :lamer:

Thankfully the bike sounded better :-[

Ryan usually makes excellent reviews.....give him a chance and watch some more of his stuff
Title: Re: KTM 300tpi
Post by: BuRP on April 15, 2020, 09:55:09 am
And now you get to have multiple maps ready to go at the flip of a switch. Steep climbs and steps, flip the switch so you have tons of bottom end grunt, open and fast, just flip the switch to your more top end map. Loads of possibilities for the fast guys.

Yeah, it does come with a mapswitch.... which the dealer suggested we leave in the box as it doesn't do anything.
Me, wanting the utmostest of low grunt available asked him to put it on please, thinking I'll know better plus, with a single flip I'll be able to change from tractor to wheelying powerband-screaming monster like in the old days!
I found out we were both wrong, but the dealer was by far the rightest: it hardly does anything perceptible!
It has indeed a linear character, from strong low down lugging torque (not easy to stall) to powerful screaming, it's an awesome bike!
But Kortbroek, I'm no fast guy, I leave that to those too young to know that breaking bones hurts!  :P

Gone are the old days when opening the throttle resulted in more noise, then a reluctant increase in revs until it suddenly screamed and then threw you off the back wheel... it now just becomes 'more' the more you open it up.
The low down linear torque is like cheating in technical stuff, bloody awesome  ;D
Try one on for size if you can @katana , you'll love it!  :thumleft:
Title: Re: KTM 300tpi
Post by: 2StrokeDan on April 15, 2020, 10:12:40 am
To get a fair idea, even though the video is "old", watch this; "EFI vs carburetor 2 stroke KTM dirtbike; what should you buy in 2019 or 2019"

The TPI's are great, but they are much more pricey, and for the average rider there is not that much of a difference.

It is suddenly beginning to sound like carbs are the worst thing out there. ::). Do not be fooled, my 2003 300 has the low-down power, and the ability to lay it down, of the TPI bikes.

Or should I phrase this differently?  For our level of technical riding, my 2003 300 will go where any TPI will go.

Of course, overall performance is no comparison.

But for the "weekend warrior", the TPI is considerably more expensive, and you cannot mix in BP "Zip" in an emergency. ;)
Title: Re: KTM 300tpi
Post by: shark_za on April 15, 2020, 10:29:24 am
I disagree on the mapping switch, it certainly does make a difference in how fast it revs out.
I find that if I am in Map 2 (tractor) that I struggle to loft the front at will and need to preload more,
With the Map on 1 I it lights up more but I can feel the traction being lost on climbs.

Its very light but in the right situation its very clear.
Title: Re: KTM 300tpi
Post by: Tman21 on April 15, 2020, 10:38:40 am
Yes and then open the bore up a little ; 300 what a bike.
You know that feeling when a guru tuner gets your 2-stroke jetting perfectly set, yes that.
All the time, everywhere, anywhere, any condition and consistently so without any hesitation

 :laughing4: Just like that,  myself I am a turned skeptic.  KTM with counter balance shaft and TPI has basically ruined any other 2T going forward . . .

I would love to have a 2020 Sherco but I pay dental out of pocket and have come to enjoy only filling up every other ride + the added 120Km range in lesotho.
Title: Re: KTM 300tpi
Post by: Dwerg on April 15, 2020, 10:44:57 am
Am I the only one that hates to have to premix?
Title: Re: KTM 300tpi
Post by: 2StrokeDan on April 15, 2020, 10:50:36 am
Am I the only one that hates to have to premix?

Another big plus for the TPI.

Even a hardened dirt and road stroker like myself do not feel like handling sticky "petroil" cans anymore.

Title: Re: KTM 300tpi
Post by: Tman21 on April 15, 2020, 10:52:30 am
Am I the only one that hates to have to premix?

Nope, and if my 1 recording was correct I managed 17hrs on one tank of 2T oil
Title: Re: KTM 300tpi
Post by: Tman21 on April 15, 2020, 10:56:23 am
Oom James never lies and neither does the Dyno. 

Keep in mind this is a 250 and engine characteristics are slightly different as one would expect.
Map also changes ever so slightly after adjusting the PV.  ( I dont have the switch so just did it manually as an experiment)

(https://i.postimg.cc/fRC6MQZw/166811149-8iq9kb-Ws-2018-TE250i-Map-Switch-Power-Comparison.jpg) (https://postimages.org/)

(https://i.postimg.cc/DzYHbQ8H/166811151-d-CTjv-Kj9-2018-TE250i-Map-Switch-Torque-Comparison.jpg) (https://postimages.org/)

(https://i.postimg.cc/zBbMwLhB/166811251-ek8-S7oix-2017-TE250-Map-Switch-Power-Comparison.jpg) (https://postimages.org/)

(https://i.postimg.cc/ZRGQwTPL/166811252-Ol58-N6h-N-2017-TE250-Map-Switch-Torque-Comparison.jpg) (https://postimages.org/)

Title: Re: KTM 300tpi
Post by: Tman21 on April 15, 2020, 11:01:11 am
As you can see by the Dyno charts above that contrary to popular belief the switch does not do anything for the bottom end unless you can feel 0,5HP,  (read: rock crawling environment) it does however flatten out the curve making for a smoother tractor like power curve.
Not sure how the uninformed masses perception around the map switch became an actual thing in the market.

Flipping the switch on the TPI is day and night difference when you riding 3-5th gear as the it feels flat/dead/linear once the PV opens as if its a badly tuned carb bike that is over fueling.
Title: Re: KTM 300tpi
Post by: katana on April 15, 2020, 11:04:13 am
And now you get to have multiple maps ready to go at the flip of a switch. Steep climbs and steps, flip the switch so you have tons of bottom end grunt, open and fast, just flip the switch to your more top end map. Loads of possibilities for the fast guys.

Yeah, it does come with a mapswitch.... which the dealer suggested we leave in the box as it doesn't do anything.
Me, wanting the utmostest of low grunt available asked him to put it on please, thinking I'll know better plus, with a single flip I'll be able to change from tractor to wheelying powerband-screaming monster like in the old days!
I found out we were both wrong, but the dealer was by far the rightest: it hardly does anything perceptible!
It has indeed a linear character, from strong low down lugging torque (not easy to stall) to powerful screaming, it's an awesome bike!
But Kortbroek, I'm no fast guy, I leave that to those too young to know that breaking bones hurts!  :P

Gone are the old days when opening the throttle resulted in more noise, then a reluctant increase in revs until it suddenly screamed and then threw you off the back wheel... it now just becomes 'more' the more you open it up.
The low down linear torque is like cheating in technical stuff, bloody awesome  ;D
Try one on for size if you can @katana , you'll love it!  :thumleft:
My 2012 ticks all the boxes at the moment.  I have just always dreamed of a new out the box enduro with myself being in control of its history and maintenance.  It irked me that I would not have a chance to buy a new bike with a carb.  Now however I would give it a bash.
Title: Re: KTM 300tpi
Post by: Dwerg on April 15, 2020, 11:11:40 am
OK, nobody mentioned premix so I was wondering if the more seasoned 2t riders appreciate that benefit. For an occasional spur of the moment rider like myself, that was interfering with riding at times. Not to mention it's just annoying
Title: Re: KTM 300tpi
Post by: shark_za on April 15, 2020, 11:12:29 am
As you can see by the Dyno charts above that contrary to popular belief the switch does not do anything for the bottom end unless you can feel 0,5HP,  (read: rock crawling environment) it does however flatten out the curve making for a smoother tractor like power curve.
Not sure how the uninformed masses perception around the map switch became an actual thing in the market.

Flipping the switch on the TPI is day and night difference when you riding 3-5th gear as the it feels flat/dead/linear once the PV opens as if its a badly tuned carb bike that is over fueling.
What a power output graph doesn't show is the timing retard or advance that seems to make it only stall at a much lower RPM.
Title: Re: KTM 300tpi
Post by: katana on April 15, 2020, 11:38:53 am
I sold my last IT because I was gatvol of mixing.  I now regret that.  It still is extra work before a ride though.  How long does premix last anyway?
Title: Re: KTM 300tpi
Post by: Altie7deLaan on April 15, 2020, 12:29:48 pm
The only 2 stroke I own is a entry level Stihl chainsaw, that I bought new 2 years ago.
I was told this is for light duty work only.
I always let it run warm before use. and I clean it after.

I have cut down a couple of big trees with it,  running it tank after tank, cutting trunks that are way bigger in diameter than the little saw`s reach.
Man that little engine is a giant slayer.

OK I am sorry, way of topic, but I am now seriously intrigued by this thread. Will start looking for a cheap (and(probably nasty) Jap 2 stroke after lock down.


Title: Re: KTM 300tpi
Post by: 2StrokeDan on April 15, 2020, 01:52:19 pm
OK, nobody mentioned premix so I was wondering if the more seasoned 2t riders appreciate that benefit. For an occasional spur of the moment rider like myself, that was interfering with riding at times. Not to mention it's just annoying

Not only is the injected oil system more convenient, but the oil lasts very much longer, because the electronics [there's that staan langs die pad woord again] decides how much oil is needed when.

With premix you have to mix in enough oil to cater for all conditions. When riding really technical places, where I know that no open throttle is going to be used, I take my mix to 100 to 1.

Yes, that's 250ml of oil to 25 liters of fuel.
Title: Re: KTM 300tpi
Post by: katana on April 15, 2020, 05:30:51 pm
I stick to what the bottle says.  @2StrokeDan Do you adjust your jetting or just jet it for the most amount of oil?
Title: Re: KTM 300tpi
Post by: 2StrokeDan on April 15, 2020, 06:47:12 pm
I stick to what the bottle says.  @2StrokeDan Do you adjust your jetting or just jet it for the most amount of oil?

I have a 42 pilot jet, 175 main [with FMF], needle circlip on 2nd groove from top, and airscrew about 1,5-1,75 turns out.

Standard carb, it pulls amazingly from low down, revs out well too.

Die ou antie kan nog hardloop!
Title: Re: KTM 300tpi
Post by: katana on April 15, 2020, 06:49:49 pm
So geen verstellings as jy jou mix ryker maak nie?
Title: Re: KTM 300tpi
Post by: 2StrokeDan on April 15, 2020, 08:34:04 pm
So geen verstellings as jy jou mix ryker maak nie?

Nee, geen. My jetting is ok vir 40 tot 1, as ek die oliemengsel armer maak, se maar na 60 tot 1, is dit net as ek lae-toere hou.
Title: Re: KTM 300tpi
Post by: katana on April 15, 2020, 09:19:29 pm
So geen verstellings as jy jou mix ryker maak nie?

Nee, geen. My jetting is ok vir 40 tot 1, as ek die oliemengsel armer maak, se maar na 60 tot 1, is dit net as ek lae-toere hou.
Dankie.  Ek besef al hoe meer hoeveel swakker my Afrikaans raak:  'as ek die oliemengsel armer maak'  moes ek nogal aan dink.   :thumleft:
Title: Re: KTM 300tpi
Post by: 2StrokeDan on April 15, 2020, 10:12:14 pm
So geen verstellings as jy jou mix ryker maak nie?

Nee, geen. My jetting is ok vir 40 tot 1, as ek die oliemengsel armer maak, se maar na 60 tot 1, is dit net as ek lae-toere hou.
Dankie.  Ek besef al hoe meer hoeveel swakker my Afrikaans raak:  'as ek die oliemengsel armer maak'  moes ek nogal aan dink.   :thumleft:

 :imaposer:
Title: Re: KTM 300tpi
Post by: Tman21 on April 16, 2020, 09:21:25 am
50:1 is die olie ongeveer 2% van die mengsel in jou tenk.
100:1 is die olie ongeveer 1% van die mengsel in jou tenk.

So maak nie regtig 'n groot verskil and die jetting as of die brandstof nou ongeveer 98% of 99% van jou tenk se inhoud is nie.

Die is nou 'n hele ander draad op sy eie oor die hoeveelheid olie en hoe hy dan smeer. :pot:

Daar is olie op die mark wat se 40:1 en ander wat nou weer voorstel 80:1
Title: Re: KTM 300tpi
Post by: Dwerg on April 16, 2020, 09:24:01 am
50:1 is die olie ongeveer 2% van die mengsel in jou tenk.
100:1 is die olie ongeveer 1% van die mengsel in jou tenk.

So maak nie regtig 'n groot verskil and die jetting as of die brandstof nou ongeveer 98% of 99% van jou tenk se inhoud is nie.

Die is nou 'n hele ander draad op sy eie oor die hoeveelheid olie en hoe hy dan smeer. :pot:

Daar is olie op die mark wat se 40:1 en ander wat nou weer voorstel 80:1

Nog 'n voordeel van die TPI fietse. Nie meer 1000e threads op die offroad forums oor hoeveel om te mix nie
Title: Re: KTM 300tpi
Post by: jaybiker on April 16, 2020, 10:15:47 am
And to think that when I rode 2strokes we were running 25 or even 20 to one. When I toured Spain I learned to ask for 'cinqo por ciento, por favor'.

You left a haze of lovely blue smoke wherever you rode, and on a twin it was a pair of contrails in the air. As a mere observer rather than a buyer sadly these days, I'm still encouraged by the idea that modern 'lean' 2 strokes may once again become common on the roads. Despite being in general an 'electronophobe', if that's what it takes I'll applaud it.

Who knows after all, money may come my way......... :imaposer: :imaposer:
Title: Re: KTM 300tpi
Post by: Kaboef on April 16, 2020, 10:16:32 am
My 1980 Kawa KE175 het self sy olie gemix.

KTM is ver agter met tegnologie.


Title: Re: KTM 300tpi
Post by: BuRP on April 16, 2020, 10:38:20 am
Nog 'n voordeel van die TPI fietse. Nie meer 1000e threads op die offroad forums oor hoeveel om te mix nie

Ek wou myne inloop deur baiebaie min olie in die eerste tenk petrol te gooi, dus met n flouou premix sodat die eintlike mengsel wat ryker sou wees.
Vertel die agent my "MoeNIE dit doen nie! Dit is glad nie nodig nie, dis selfs sleg vir die enjin - en moet nooit nie, want dit sal die injectors clog, pasop!"
Die enjin het klaar biki geloop by die fabriek, oopkeel selfs.
So daar het jy dit, so much for my good intentions.  ???
Title: Re: KTM 300tpi
Post by: Tman21 on April 16, 2020, 11:13:47 am
Nog 'n voordeel van die TPI fietse. Nie meer 1000e threads op die offroad forums oor hoeveel om te mix nie

Ek wou myne inloop deur baiebaie min olie in die eerste tenk petrol te gooi, dus met n flouou premix sodat die eintlike mengsel wat ryker sou wees.
Vertel die agent my "MoeNIE dit doen nie! Dit is glad nie nodig nie, dis selfs sleg vir die enjin - en moet nooit nie, want dit sal die injectors clog, pasop!"
Die enjin het klaar biki geloop by die fabriek, oopkeel selfs.
So daar het jy dit, so much for my good intentions.  ???

Korrek ja, dit sal injector heel moontlik clog en eintlik maak jy net baie duur brandstof.  Gaan loer bietjie hoe en waar die injector sit.  Olie sal nooit smeer waar dit veronderstel is om te wees nie.
Title: Re: KTM 300tpi
Post by: katana on April 16, 2020, 11:51:25 am
50:1 is die olie ongeveer 2% van die mengsel in jou tenk.
100:1 is die olie ongeveer 1% van die mengsel in jou tenk.

So maak nie regtig 'n groot verskil and die jetting as of die brandstof nou ongeveer 98% of 99% van jou tenk se inhoud is nie.

Die is nou 'n hele ander draad op sy eie oor die hoeveelheid olie en hoe hy dan smeer. :pot:

Daar is olie op die mark wat se 40:1 en ander wat nou weer voorstel 80:1

Nog 'n voordeel van die TPI fietse. Nie meer 1000e threads op die offroad forums oor hoeveel om te mix nie
Watter olie gebruik jy?   :peepwall:   :imaposer: :imaposer:
Title: Re: KTM 300tpi
Post by: Tman21 on April 16, 2020, 12:01:16 pm
50:1 is die olie ongeveer 2% van die mengsel in jou tenk.
100:1 is die olie ongeveer 1% van die mengsel in jou tenk.

So maak nie regtig 'n groot verskil and die jetting as of die brandstof nou ongeveer 98% of 99% van jou tenk se inhoud is nie.

Die is nou 'n hele ander draad op sy eie oor die hoeveelheid olie en hoe hy dan smeer. :pot:

Daar is olie op die mark wat se 40:1 en ander wat nou weer voorstel 80:1

Nog 'n voordeel van die TPI fietse. Nie meer 1000e threads op die offroad forums oor hoeveel om te mix nie
Watter olie gebruik jy?   :peepwall:   :imaposer: :imaposer:

Gedurende die lockdown net Extra-Virgin :deal:
Title: Re: KTM 300tpi
Post by: 2StrokeDan on April 16, 2020, 02:05:11 pm
50:1 is die olie ongeveer 2% van die mengsel in jou tenk.
100:1 is die olie ongeveer 1% van die mengsel in jou tenk.

So maak nie regtig 'n groot verskil and die jetting as of die brandstof nou ongeveer 98% of 99% van jou tenk se inhoud is nie.

Die is nou 'n hele ander draad op sy eie oor die hoeveelheid olie en hoe hy dan smeer. :pot:

Daar is olie op die mark wat se 40:1 en ander wat nou weer voorstel 80:1

Nog 'n voordeel van die TPI fietse. Nie meer 1000e threads op die offroad forums oor hoeveel om te mix nie

Die paar TPI wat wel krukas laers verloor het, of vasgebrand het oor inkorrekte graad olie, sal die meng threads vervang. :pot:
Title: Re: KTM 300tpi
Post by: shark_za on April 16, 2020, 02:07:57 pm
Just looking after the Lithium Polymer Battery with great care.
CTEK charger for the LiPo voltage, maintenance charge now during lockdown.
Top up every ride.

This thing has no kick start
Title: Re: KTM 300tpi
Post by: Tman21 on April 16, 2020, 03:10:20 pm
Just looking after the Lithium Polymer Battery with great care.
CTEK charger for the LiPo voltage, maintenance charge now during lockdown.
Top up every ride.

This thing has no kick start

My 250FE ran the same lithium battery for 3 years with no fail and not a single charge.  Stood for weeks on end during my ACL surgery and revved it after a couple of brandies to treat my neighbors.

300TPI not a single charge since I got it in July only 50hrs now so also not much use and sometimes stood for 3-4 weeks at a time due to travel.  Some of these modern marvels are best preserved with little to no intervention.
Title: Re: KTM 300tpi
Post by: BuRP on April 16, 2020, 05:30:40 pm
Olie sal nooit smeer waar dit veronderstel is om te wees nie.

Wrong, it will lube exactly there where you want a lil more when running in: the top ring!  ;)
Title: Re: KTM 300tpi
Post by: Tman21 on April 17, 2020, 08:38:42 am
Olie sal nooit smeer waar dit veronderstel is om te wees nie.

Wrong, it will lube exactly there where you want a lil more when running in: the top ring!  ;)

 :thumleft:

Yes, olie in die tank gaan bo op jou piston land, (nie nodig nie) maar nie waar dit veronderstel is om te smeer nie. 

Maar dit sal die TPI selfs nog leaner maak as wat hy tans is.
Title: Re: KTM 300tpi
Post by: 2StrokeDan on April 17, 2020, 08:40:53 am
Olie sal nooit smeer waar dit veronderstel is om te wees nie.

Wrong, it will lube exactly there where you want a lil more when running in: the top ring!  ;)

 :thumleft:

Yes, olie in die tank gaan bo op jou piston land, (nie nodig nie) maar nie waar dit veronderstel is om te smeer nie. 

Maar dit sal die TPI selfs nog leaner maak as wat hy tans is.

Maar dit sal jou n "nat" tailpipe gee, wat goed is vir nostalgie. :ricky:
Title: Re: KTM 300tpi
Post by: BuRP on April 17, 2020, 01:31:29 pm
Yes, olie in die tank gaan bo op jou piston land, (nie nodig nie) maar nie waar dit veronderstel is om te smeer nie.

Jy vergeet van condensation & dispersion on the cylinder walls hmm, specifically there where the honing marks create sharp protruding highs?
En vervolgens word dit 'geskraap' deur die top ring!
Tsk tsk tsk  ;)

En Danie, n tweetak gee ander nat plekke, en belowe dit het niks van doene met nostalgie nie  :P
Title: Re: KTM 300tpi
Post by: Sheepman on April 17, 2020, 02:09:52 pm
Yes, olie in die tank gaan bo op jou piston land, (nie nodig nie) maar nie waar dit veronderstel is om te smeer nie.

Jy vergeet van condensation & dispersion on the cylinder walls hmm, specifically there where the honing marks create sharp protruding highs?
En vervolgens word dit 'geskraap' deur die top ring!
Tsk tsk tsk  ;)

En Danie, n tweetak gee ander nat plekke, en belowe dit het niks van doene met nostalgie nie  :P

@ BuRP, you a KTM techie here in the Pretoria / JHB area ?
Title: Re: KTM 300tpi
Post by: BuRP on April 17, 2020, 02:58:01 pm
BuRP, you a KTM techie here in the Pretoria / JHB area ?

No - but I do work on my own bikes, indeed in Pretoria, at home.
I was one though, eons ago, worked on all brands... of which KTM was basically an unknown then.
How things have changed since then eh?  :P
Title: Re: KTM 300tpi
Post by: Sheepman on April 17, 2020, 04:53:33 pm
BuRP, you a KTM techie here in the Pretoria / JHB area ?

No - but I do work on my own bikes, indeed in Pretoria, at home.
I was one though, eons ago, worked on all brands... of which KTM was basically an unknown then.
How things have changed since then eh?  :P

Cool  :thumleft: Just thought there's a new Katoom techie in town to try, since I know all the PTA, JHB culprits  :laughing4:
Title: Re: KTM 300tpi
Post by: 2StrokeDan on April 17, 2020, 04:57:38 pm
BuRP, you a KTM techie here in the Pretoria / JHB area ?

No - but I do work on my own bikes, indeed in Pretoria, at home.
I was one though, eons ago, worked on all brands... of which KTM was basically an unknown then.
How things have changed since then eh?  :P

You know so much about engines, and working on them, I just knew you are a KTM rider. :pot:
Title: Re: KTM 300tpi
Post by: BuRP on April 18, 2020, 09:46:30 am
You know so much about engines, and working on them, I just knew you are a KTM rider.

Ou Dan,

I bought my CBR600RR because I wanted to ride again, not spanner.
I did too!
Then I found some farkles which had to be mounted.... so back to square one - well, more a hexagonal one!
Anyway, then I bought a 701.... and boy lemmetellyou, I had to get more spanners, those newfangled allan keys which are more like double-allans.
It still goes though, clappers spring to mind.
Then I finally bought something orange.... and my life changed!
My toolbox too  :P


But I do not seem to be alone here, let me explain.
I've never been a BMW fan, call me weird.
Had a few though but used to be a Kwacker fan, still am a bit.
But as we get on agewise our tastes 'mature' somewhat.
Yes, I have a few KTM's now.... but I know of a diehard Yamaha guy who now staans and trappels to receive his first BMW, go figure eh?
 :thumleft:
Title: Re: KTM 300tpi
Post by: 2StrokeDan on April 18, 2020, 02:28:33 pm
You know so much about engines, and working on them, I just knew you are a KTM rider.

Ou Dan,

I bought my CBR600RR because I wanted to ride again, not spanner.
I did too!
Then I found some farkles which had to be mounted.... so back to square one - well, more a hexagonal one!
Anyway, then I bought a 701.... and boy lemmetellyou, I had to get more spanners, those newfangled allan keys which are more like double-allans.
It still goes though, clappers spring to mind.
Then I finally bought something orange.... and my life changed!
My toolbox too  :P


But I do not seem to be alone here, let me explain.
I've never been a BMW fan, call me weird.
Had a few though but used to be a Kwacker fan, still am a bit.
But as we get on agewise our tastes 'mature' somewhat.
Yes, I have a few KTM's now.... but I know of a diehard Yamaha guy who now staans and trappels to receive his first BMW, go figure eh?
 :thumleft:

Go away! :imaposer: :imaposer: :thumleft:
Title: Re: KTM 300tpi
Post by: Tman21 on April 18, 2020, 02:43:16 pm
Yes, olie in die tank gaan bo op jou piston land, (nie nodig nie) maar nie waar dit veronderstel is om te smeer nie.

Jy vergeet van condensation & dispersion on the cylinder walls hmm, specifically there where the honing marks create sharp protruding highs?
En vervolgens word dit 'geskraap' deur die top ring!
Tsk tsk tsk  ;)

En Danie, n tweetak gee ander nat plekke, en belowe dit het niks van doene met nostalgie nie  :P

Ok Burp, ill bite.  My mechanical knowledge is limited to the building of top ends on both 2T and 4T and 8years of bush tech whilst riding.

I didnt mean to say that you are wrong, which you weren't.  My statement was to enforce what the dealers argue that you will damage the bike if you premix.

I also understand what you are saying to the lubricity needs for running in.

I have no clue how long an injector will last if you premix but I can assure you if your TPI's oil tank is empty and you decide to premix going forward the injector will probably last longer than the bottom end as the mist/vapor will not be sufficient to take care of the big end.

Also healthier to agree on disagreeing . . . .   What baffles me more is how you got your hands on a 790 RRRR :pot:
Title: Re: KTM 300tpi
Post by: BuRP on April 18, 2020, 04:07:19 pm
will not be sufficient to take care of the big end.


how you got your hands on a 790 RRRR

Correct - and never my intention. Besides also, zero need for such, as bearings (and seals) hardly need more oil to run in, they will be purrrfect with what they will get as per supplied by the OEM system.
A stroker has only 2 places where, and do remember I'm old school please, some extra lubrication will not go amiss during run-in, being skirt & rings.
But yeah, it's 2020 now, the era of rather sophisticated materials having become somewhat more commonplace, resulting in things beyond belief if not plain unbelievable only decades ago!
For instance, valves & seats... SO hard and wearproof that they're not really set anymore - rev the tits off them for years, no problem, no, better, normal!
Apparently same with Nicasil and Chrome, however do add the fine manufacturing tolerances of today.
They're very hard wearing, nigh on perfectly shaped already ex factory, plus KTM does not want you to add a smidgeon extra lube.... oh well, fine then, after all I got a warranty!  :thumleft:
Similar for the skirt, largely some fancy Teflon coating or alike, supersoft gliding over supersmooth hard only needing a hint of oil...
Of course it runs perfect, long time run-in already.
But, if not being told not to I'd have added a little (really a little!) oil to the first tank.... refer back to my old school thingy  ;)


Getting a Rally was actually easy!
I braved up by drinking strong coffee, put on my stoutest boots, went to the dealer whilst mentally preparing myself to have convincing hard discussions, walked in with big manly steps and... the lady who helped me agreed within what, 5 seconds?
Better still, she gave me a better coffee than what I have at home!  :thumleft:
Serious though, being in time i.e early enough was the trick, and no doubt anyone having one now did same.
I herewith officially thank @171steve for his post because that triggered me to don the abovementioned boots, I simply wasn't aware of the bike then  ;) - Thanks Squire  :thumleft:
Title: Re: KTM 300tpi
Post by: Tman21 on April 20, 2020, 08:49:43 am
Saw this on the Global TPI Fb page this morning.

Not too bad for 187hrs.

I always have an itch, and having a newer or just a new bike from time to time is awesome but I run custom suspension and the 2019 is so good they will have start slashing prices for me to justify a new bike again.  That being said Im seriously keen to rack up the hours on my own bike.

If I can find rings separately Ill be changing them around 80hrs and then top end around 160 or so with a new oil pump and that little vacuum sensor elbow.

(https://i.postimg.cc/JhtYV3q5/Capture.jpg) (https://postimages.org/)
Title: Re: KTM 300tpi
Post by: BuRP on April 20, 2020, 09:12:44 am
Not too bad for 187hrs.

I agree by the looks of it ... how/what do you ride mostly?
And, what does KTM actually recommend?

During a Funduro in Stilbaai I towed a broken 300 which the nice chap proudly mentioned had 250 hours on without any problem or maintenance - proudly yes.
That had cost him a non finish, a long walk to freedom if not towed, plus whatever damage to fix once home - and if it ain't running anymore then that's more than just a piston swap!
I will stick to whatever KTM recommends to keep things simplest, if not cheapest also: a piston doesn't cost the earth but a barrel does, and don't talk to me about having to take the crank out or worse, having it redone.
Yeah, that probably will be too early for my riding/use and quite on the 'safe side', but so be it.... as said, perhaps the cheapest way plus it will run perfectly!
Plus, keeping the 'old' parts will be convincing if I sell the bike, it is the best proof that the bike was properly maintained... which translates to more value, this in contradiction to buying an upused scratched plastic with a dubious past, we've all been there  ;)
Title: Re: KTM 300tpi
Post by: shark_za on April 20, 2020, 09:16:53 am
KTM recommend a R16k service at 60 hours, something ridiculous like that.
Title: Re: KTM 300tpi
Post by: Tman21 on April 20, 2020, 09:27:17 am
KTM recommend a R16k service at 60 hours, something ridiculous like that.

Yeah, KTM has moved to Scheduled maint intervals like car manufacturers and road bikes have been doing for years.

The 80hrs service demands, front and rear susp service, radiator fluid, brake fluid, spark plug, gear oil, oil pump, top end kit, (think the vacuum elbow pipe) and in tank filter.

Dont quote me on these, the actual items are listed in the manual.  I have a pic somewhere that ill dig for. . . .

But the above mentioned is anywhere from 15-19K dealer and labor cost dependent. 

Me myself I ride 80% + in 1st gear and so does my riding partner on his 2014 250.

He currently sitting on around 850hrs with only 3 top ends done.  Owned the bike since 13hrs and yes.  He has only replaced the piston 3 times and the 4th one is nearly due.
The recipe is a clean filter regardless of looks and Motul 710.  His 2013 300 Six days also did just over 1000hrs on only 4 top ends.  Bottom end never touched.
Title: Re: KTM 300tpi
Post by: BuRP on April 20, 2020, 09:31:22 am
KTM recommend a R16k service at 60 hours, something ridiculous like that.

Thanks, but what is involved then?

I'll be doing this work myself, can't be rocket science ... and if some diagnostic equipment is required (TPI?) then I'll ask my friendly dealer to do that for me only, cannot see a reason why they would not be willing to do such.
That saves moola plus it for me is part and parcel of this hobby, I actually enjoy such things  ;)
Title: Re: KTM 300tpi
Post by: Tman21 on April 20, 2020, 12:45:12 pm
Jip, absolutely no need to take bike to dealership for any type of service.

Only reason I could see is if you would like to change the map or they release ECR's of some sort.  1hr labor and thats that.

Top end, fluids, suspension can all be done at home