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Dirt Bike Brands - Other
'90 YZ 250 (Mikuni question)
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[QUOTE="A-RustyDemon, post: 698277, member: 37443"] Did he bike idle high before you did the top end? If not I'd look for a air leak in the intake... and at the base of the jug. Use a spray of liquid around any potential leaking area with the bike running... any change in the RMP's indicates a leak. I like DW 40 or some people use carb or contact cleaner.. I like WD because it will not strip the oils from a already lean cylinder. Also some of the carb's incorporated the idle and the choke on the same knob. I'm not sure if yours is but you could give it a turn and see it if is. Also maybe there is some trash in the carb hanging up the needle.. just a thought. [/QUOTE]
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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
'90 YZ 250 (Mikuni question)
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