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Author Topic: 701 Mods and Farkles  (Read 28453 times)

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Offline teebag

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Re: 701 Mods and Farkles
« Reply #280 on: February 26, 2020, 06:14:26 pm »
Next up, something that has been bugging me for a while. The clutch slave o-ring. With an increased sense of urgency after 2 failures last week, of my friends 701 enduro (8000km) and Svartpilen (2500km) within 2 days of each other.  So coming up to 5000km I was starting to feel it could let me down at any time.

The 1st challenge is finding a o-ring of the correct material EPDM, trouble is all the normal places donít stock, or say just use what they have. For reference Coastal Seals in Maitland had the correct one - size and material, so I bought a few (2.5mm x 22mm ID)



The job is fairly straight forward, if you take your time and think it through. I managed to remove the slave, replace the seal and refit the piston, without loosing too much fluid. 





I found a use for the bands on the exhaust header which meant I could keep the piston level throughout.



Bleeding was a simple matter of pulling the lever slowly repeatedly until no more air bubbles came out, whilst ensuring the fluid level didnít drop too low.



Everything back in its place and a quick wash to remove any fluid from the plastics and paint.

I also took the time to loctite the gear position sensor bolts, I had been told that on early models they werenít and if that thing moves, no playtime.  In my case there did appear to be locking compound on the threads, so maybe they started doing it on later models.

Total cost of fix R4.50 and some Dot 5.1

The fitted seal was looking worse for wear so I looks like I may have dodged a bullet and saved myself the expense of having it let go somewhere remote and far from home.

« Last Edit: February 26, 2020, 06:26:22 pm by teebag »
 

Offline BiG DoM

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Re: 701 Mods and Farkles
« Reply #281 on: February 26, 2020, 06:22:40 pm »
Very good mod that I have also done a while back. Bought a good batch of the o-rings online and gave many away to members of the South African 701 Enduro Facebook page.  Too many waste money on Oberon slaves when all you need is a 50 cent o-ring.  :thumleft:
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Re: 701 Mods and Farkles
« Reply #282 on: February 26, 2020, 07:10:42 pm »
No offense, but EPDM is pretty much the standard material for all "O" rings, the problem would be a small town supplier stocked up with Indian and Chinese rubbish (they make great stuff and crap to price level by the buyer) brake systems I am no fundi, but if I can buy a Viton seal or "O" ring versus EPDM I buy Viton, a R50 difference versus stranded and or tearing it down.  :peepwall:     
When is this "Old enough to know better" supposed to kick in?
 

Offline teebag

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701 Mods and Farkles
« Reply #283 on: February 26, 2020, 08:43:41 pm »
I also went down the EPDM vs Viton rabbit hole, as it turns out Viton is a brandname owned by DuPont for their FKM (Fluoroelastomer) range.  While FKM (FPM in Europe) is resistant to most chemicals, it is not suited to glycol based break fluids such as Dot 4 and 5.1 see table below.



The next states Viton is not suited for Auto brake fluids



The 3rd picture is of the o-ring which came off my slave piston, not stock and which i believe to be Viton or other FKM based on the brown colouring (they can be brown, green or black which makes things clear as mud), as you can see it was not doing well, and probably wouldn't have lasted much longer.

« Last Edit: February 26, 2020, 09:00:23 pm by teebag »
 

Offline BiG DoM

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Re: 701 Mods and Farkles
« Reply #284 on: February 26, 2020, 09:14:50 pm »
No offense, but EPDM is pretty much the standard material for all "O" rings, the problem would be a small town supplier stocked up with Indian and Chinese rubbish (they make great stuff and crap to price level by the buyer) brake systems I am no fundi, but if I can buy a Viton seal or "O" ring versus EPDM I buy Viton, a R50 difference versus stranded and or tearing it down.  :peepwall:   

Viton is not right for brake fluid.
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Re: 701 Mods and Farkles
« Reply #285 on: February 26, 2020, 09:53:10 pm »
Could you change from brake fluid (dot 3,4...)to mineral oil as on bigger KTM's and BM's?

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Re: 701 Mods and Farkles
« Reply #286 on: February 27, 2020, 07:58:12 am »
Could you change from brake fluid (dot 3,4...)to mineral oil as on bigger KTM's and BM's?

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No as then you also have to replace the rubber parts in the master cylinder.
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Offline deapsquatter

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Re: 701 Mods and Farkles
« Reply #287 on: March 03, 2020, 12:07:17 pm »
Yes have one on my 610 and 450 and have had them now on a string of my sons extreme enduro bikes. Best is they are virtually indestructible, slide over rocks instead of hanging up like aluminium likes to do, and also do not amplify engine noise like metal bashplates.  :thumleft:

Ended up getting the AXP bashplate - brilliant! Attaches with two bolts, indestructible and has excellent linkage protection.

https://www.axp-racing.com/en/product/2015-2019-husqvarna-701-ktm-690-xtrem-skid-plate-black-ax1472

How did you manage to order this? The website gives me "No delivery options available" when choosing SA. Did you do some sort of special order with them?
 

Offline teebag

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Re: 701 Mods and Farkles
« Reply #288 on: March 03, 2020, 12:14:14 pm »
The new Vanasche looks good...

 

Offline BiG DoM

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Re: 701 Mods and Farkles
« Reply #289 on: March 03, 2020, 12:36:05 pm »
Yes a great looking bashplate - seems they looked at the AXP for a departure point although Andrew Vanasche denies it  ::) 

I am not sure of comparative cost with current exchange rate but know that LoCoMoTo are offering a special on it:

https://www.locomoto.co.za/latest-products/328-vanasche-molecule-motorsports-ultimate-uhmw-skid-plate-ktm-690-husqvarna701.html?fbclid=IwAR2QoLyrSYSmvqp9qBWTVyPpWarA6uMKpt51jm9ZvniLje5_w6DlywCUFM8
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Offline teebag

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Re: 701 Mods and Farkles
« Reply #290 on: March 03, 2020, 02:46:28 pm »
If I didnít already have a plate, this would have been hard to resist
 

Offline BiG DoM

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Re: 701 Mods and Farkles
« Reply #291 on: March 03, 2020, 03:37:11 pm »
If I didnít already have a plate, this would have been hard to resist

I have the AXP and also assisted Xavier with developing and improving it with better side coverage. I am very happy with it and it does the job superbly. That said it would be a difficult call if I was now in the market for a new one - I like the single formed construction but would like more info more how it attaches at the back (hopefully not to the engine).
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Offline teebag

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Re: 701 Mods and Farkles
« Reply #292 on: March 03, 2020, 03:41:04 pm »
Same location as the factory plastic

 

Offline Dolf

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Re: 701 Frugal Farkle Fred
« Reply #293 on: March 10, 2020, 08:14:17 am »
Scored a win from @Manic  who had some new 701 farkles laying about - ordered before he changed his mind and went all orange like.

Brand new 2nd hand Flatlands Racing bash plate, heavier than stock but should provide better protection.









Who locally sells this skid plate?
 

Offline teebag

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Re: 701 Mods and Farkles
« Reply #294 on: March 10, 2020, 08:17:15 am »
No one


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Offline Dolf

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Re: 701 Mods and Farkles
« Reply #295 on: March 10, 2020, 08:32:39 am »
No one


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I guess this one is still better than stock then.

https://flyingbrick.co.za/product/rost-engine-guard-ktm-690/
 

Offline BiG DoM

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Re: 701 Mods and Farkles
« Reply #296 on: March 10, 2020, 08:50:02 am »
The meneer is still the AXP or the new Vanache. Composite is better than aluminium. Both available from Wessel at LoCoMoTo
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Offline zebra - Flying Brick

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Re: 701 Mods and Farkles
« Reply #297 on: March 10, 2020, 08:52:56 am »


Quote from: BiG DoM on Today at 08:50:02 am>The meneer is still the AXP or the new Vanache. Composite is better than aluminium. Both available from Wessel at LoCoMoTo
...and AXP available from Flying Brick... ;)


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Offline BiG DoM

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Re: 701 Mods and Farkles
« Reply #298 on: March 10, 2020, 09:11:18 am »


Quote from: BiG DoM on Today at 08:50:02 am>The meneer is still the AXP or the new Vanache. Composite is better than aluminium. Both available from Wessel at LoCoMoTo
...and AXP available from Flying Brick... ;)


Ah - true, sorry forgot. Yes Flying Brick rock. :thumleft:
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Offline Dolf

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Re: 701 Mods and Farkles
« Reply #299 on: March 10, 2020, 09:38:47 am »
Link to the AXP please? Can't find it.