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2000 Rev3 Wont Start!


kwak7
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Hi folks....looking for some guidance and ideas

I recently bought a 2000 Rev3 in pretty good nick (my first dip into the waters of trialing). It's been running pretty sweetly until this weekend. Used it Saturday fine, but on Sunday it started then the revs went kind of 'bogged down' when I applied a little throttle and it hasnt run since. I figured it was flooded badly but that doesnt seem to be the case. There wasnt much of a spark but I've replaced the plug and it sparks ok against the head when tested. So far I've:

* checked spark & replaced plug

* removed carb, checked and blown all jets etc (also did BillyT's float bowl height mod while I was in there to stop it ****ing fuel!)

* removed & checked reed valves

* took the cylinder off, checked piston & rings etc....all fine (other than the expected black piston top...probably never been looked at in 9 years!)

Now I'm stuck. There's plenty of fuel getting in and no aparent air blockages and it is sparking. The crank was full of fuel though...had to syphon it out and leave the rest to evapourate over night!!

My only thoughts left are....bad fuel or dodgy mix (it was fully empty Saturday night and re-filled with new fuel [70:1] Sunday morning just prior to the problem), some kind of timing issue or the stator.

Any other ideas before I have to buy a flywheel puller & stator??

Cheers.

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I had this problem on my 2001, everything then suddenly wudnt start, checked all the usual but still no life,

Started like new after taking expansion chamber off and emtying the oil out of it,

i have onlt had it a few weeks and i think the guy who had it before ram it on the wrong mix causing carbon build up everwhere and excess oil in exhaust!

Try de-caking everthing and give the whole exhaust a once over!

Regards

James

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