Sno-scoot carb idle problem

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Yamagirl
Posts: 3
Joined: Fri Feb 11, 2011 12:44 pm
Location: Kingston Ontario Canada

Sno-scoot carb idle problem

Post by Yamagirl »

Hi I'm back. :roll: The sno-scoot runs great when driving and It starts great cold or hot. BUT it idles wierd. When it is sitting still it seems to idle normal for a few seconds and then it revs up for a few seconds, then it idles so far down it stalls. And this continues but not necessarily in the same order every time. (It acts like a malfuntioning, electronic fuel injection system on a car. some call this hunting) . The carb is as clean as possible accept there is a welch plug on top of the carb that I have not removed. I don't know what is under there and It, like the little black hose, (please read my two other recent posts) is not on any diagrams. Has anyone had this problem and figured out what it was. Please help me. When the snowmobile revs by itself it is not safe and it belongs to my 8 yr old cousin. Any ideas :?: :?: :?: Thanks for reading Oh yeah I have that little black hose plugged off and it idles best plugged but I don't think it is suppose to be plugged. :?
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