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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
Idle problem & jet needle question?
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[QUOTE="nickyd, post: 876753, member: 56089"] the compression test done warm will give you a better reading for sure. sounds like your float is 100% sticking - at least we know when starting - and it could be what's making your idle jump - I hate to be captain obvious and send you into the carb for the umpteenth time but you need to go in there and see what's up.....scratch the float needle with your finger nail - does some whitish dry stuff flake off? same thing for the fuel inlet (where the needle it going up into) - push the needle jet up there and see if it stays. If so you've got to clean that out - and add a little carb cleaner to there where you re-assemble - the wetness will aid its movement when the first rush of gas comes in. The float is floating right? I think we confirmed that. your inlets and vents are NOT clogged correct? have you blown compressed air through the inlets on the carb? The air filter isn't likely to be the cause even with 2 stroke oil on there (I would use motor oil in a pinch - a little thinner and less goopy but if you put it on thin, it should be fine). Is the float mechanically moving ok? meaning there isn't something in its way? Or its not bent and such? the arms where it gets pinned are not pinched hindering its movement are they? I'm doubting its the reeds now too - and BTW the reeds sometimes come off with the gasket intact to one side of the assembly - I've taken them on/off many times w/o having to replace the gasket so don't stress over that. [/QUOTE]
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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
Idle problem & jet needle question?
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