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Gearing Question and idle issues.

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Ok here we go, I have 1989 yz250 wr it has Fmf fatty, turbine core, boyseen power reeds, 9 oz flywheel weight, I'm running 13/52 gearing. So I had the gearing set up when I had stock pipe, reeds. I had to replace the pipe after I crushed the stocker, it was the only one available as were the reeds afterI discovered the old ones chipped. Now the power delivery is great in the wide open but as I get into the Nasty steep rocky root infested trails here in the Pacific west coast of Canada its like trying to ride a cheetah thats on fire. Any idea if higher gearing would help with this or is there a way to slow it down a bit tame the power. I have heard reed spacers, retarding timing, and other things help but I'm not sure if any of these work.

 

Item #2 idle. I have jetted this bike so it works perfectly where I ride. It is very responsive at all throttle openings. I just cant get it to idle when it warms up which is a bit of a pain when going down hill clutch in and it stalls. Any ideas ?

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Try adjusting the idle screw a lil higher and tweak the fuel/air screw for a faster rpm. Then turn the idle screw back down a lilttle. I found when i take my yz250 out into some gnarly hill it would stall out like you said or i would have to squeeze the clutch and rev it up to prevent a stall on long down hills. For tracks my bike only idles for 30 secs before it stalls.

13-52 seems like tall gearing but again. You have WR tranny and i cant comment on what you should run. My yz250 has 14/50 and it does well everywhere. Track, trails, fire roads etc

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