- This topic has 2 replies, 2 voices, and was last updated 14 years, 10 months ago by WeaponZero.
Carburetor cleaner causing high idle?
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June 1, 2009 at 3:08 pm #2936WeaponZeroParticipant
A couple weeks ago I poured some STP carburetor cleaner into my bike’s gas tank because it sat all winter long. The next day I tried to start it up and it wouldn’t turn over. I tried again a few days later and it started up and rode just fine, but now it’s idling ridiculously high compared to what it was (idles at 3500 RPM once warmed up now). I talked to a technician and he told me that I probably just put too much of the carburetor cleaner in for the small size of a motorcycle’s gas tank, and that was causing it to run lean which is why it’s idling high. His theory made sense but I ran the tank out yesterday and filled it up again, and it’s still doing it. Should I be worried or will this process tank time, a few tankfulls or what? Or is there another explanation?
June 1, 2009 at 3:21 pm #19147MunchParticipantI would let your mechanic know that now your tank is completely empty and the symptom is still there. The carb could have thrown itself out of adjustment…. opened up what used to be partially clogged jets..etc etc.
June 7, 2009 at 5:12 am #19424WeaponZeroParticipantAbout 1/4 of the way through that gas tank and the problem fixed itself. The mechanic was right.
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