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Post by mekon on Sept 2, 2021 6:39:54 GMT
Had this problem on both my RC390 and the SV650. I've had them full throttle, top gear and suddenly the power will cut, I'll let off the throttle for moment and turn it back on and no problem. What's that all about? Fuel filter?
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Post by Diego the toe clipper on Sept 2, 2021 9:21:25 GMT
You're about to get fired by Yamaha!
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Post by Diego the toe clipper on Sept 2, 2021 9:23:00 GMT
Seriously though, does sound like fuel supply issues. Vacuum forming in the tank?
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Post by mekon on Sept 2, 2021 10:07:25 GMT
Not a clue, it's just annoying I seem to have it both bikes. It's also totally random but seems to a full throttle only thing so hopefully it won't upset the bike mid corner.
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Post by philthewindsurfer on Sept 2, 2021 10:48:21 GMT
The clear connection with those bikes is bought on the cheap badly maintained rubbish  My approach would be go through all the easy and cheap stuff first. Like Clipper said, vacuum in the tank if its high revs only, maybe breather pipe/hole blocked. |
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Post by philthewindsurfer on Sept 2, 2021 10:50:09 GMT
2nd check would be for a dirty air filter.
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Post by Diego the toe clipper on Sept 2, 2021 10:55:47 GMT
Have you got the repair manuals? Do a fuel flow test of the fuel pump.
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Post by beefus on Sept 2, 2021 10:57:41 GMT
Can't remember the last time I was full throttle in top gear!...probably on a track day!
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Post by mekon on Sept 2, 2021 12:29:54 GMT
Full throttle is easy with 43 and 72hp. I'm literally one it nearly all the time on KTM. Got a KTM service manual, yet to download one for the SV but no doubt it will out there easy enough. Oddly enough the last time they both did it was at 86mph? Maybe if I got to 88mph then good things happen?  |
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