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Offline shark_za

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Re: KTM 300tpi
« Reply #20 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.
 

Offline katana

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Re: KTM 300tpi
« Reply #21 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?
If you want to haul ass, you gotta mix gas.
 

Offline Altie7deLaan

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Re: KTM 300tpi
« Reply #22 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.


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Offline 2StrokeDan

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Re: KTM 300tpi
« Reply #23 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.
 

Offline katana

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Re: KTM 300tpi
« Reply #24 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?
If you want to haul ass, you gotta mix gas.
 

Offline 2StrokeDan

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Re: KTM 300tpi
« Reply #25 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!
 

Offline katana

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Re: KTM 300tpi
« Reply #26 on: April 15, 2020, 06:49:49 pm »
So geen verstellings as jy jou mix ryker maak nie?
If you want to haul ass, you gotta mix gas.
 

Offline 2StrokeDan

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Re: KTM 300tpi
« Reply #27 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.
 

Offline katana

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Re: KTM 300tpi
« Reply #28 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:
If you want to haul ass, you gotta mix gas.
 

Offline 2StrokeDan

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Re: KTM 300tpi
« Reply #29 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:

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Offline Tman21

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Re: KTM 300tpi
« Reply #30 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
Stroom op!
 
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Offline Dwerg

Re: KTM 300tpi
« Reply #31 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
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Offline jaybiker

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Re: KTM 300tpi
« Reply #32 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:
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Offline Kaboef

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Re: KTM 300tpi
« Reply #33 on: April 16, 2020, 10:16:32 am »
My 1980 Kawa KE175 het self sy olie gemix.

KTM is ver agter met tegnologie.


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Offline BuRP

Re: KTM 300tpi
« Reply #34 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.  ???
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Offline Tman21

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Re: KTM 300tpi
« Reply #35 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.
Stroom op!
 

Offline katana

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Re: KTM 300tpi
« Reply #36 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:
If you want to haul ass, you gotta mix gas.
 

Offline Tman21

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Re: KTM 300tpi
« Reply #37 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:
Stroom op!
 

Offline 2StrokeDan

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Re: KTM 300tpi
« Reply #38 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:
 

Offline shark_za

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Re: KTM 300tpi
« Reply #39 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