High Idle when warm

imported post

I am working out the bugs on a 1983 Aspencade I recently bought, 53000 miles and appears to be well maintained. The bike started and ran ok so I ventured out on a 425 mile trip on July 4th. By the time I got home the idle speed would not come below 3000 rpm. I spent yesterday lubing all the linkage, adjusting idle etc. I then concluded it may be a vaccum leak. I started to spray carb cleaner in small amounts at all the suspect places. When I spray at the point on the rear of the carbs where the throttle shaft goes into the carb bodys the idle jumps up high.



My carbs look to have a nylon bushing that is held into place in the side of the carb by a spring on this shaft. Also I understand that there is a felt seal ?. i cant find anywhere in the factory service manual or parts manual that shows how to fix this problem or where to get these seals. HELPPPPPPP !!!!!