1986 Interstate stumbling
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Normk
- Posts: 22
- Joined: Tue Oct 16, 2018 11:15 pm
- Location: Milwaukee, WI
- Motorcycle: 1986 GL1200 Interstate, 1983 GL1100 Interstate, 1983 GL650, 1982 GL500, 1983 CX650C (2), 1980 CX500, 1974 CR125 Elsinore
1986 Interstate stumbling
After many years of not running the bike is running. In the process of doing this I had to swap the carbs. The 86 carbs were so bad I couldn't rebuild them. A friend had a set from an 85 Aspencade. Bike starts great and pulls hard with lots of power under acceleration. But at constant speed it seems to stumble and occasionally backfire. I have read about the service bulletin about changing the slow jets from 35 to 40. Am I on the right track? Or should I just clean the currently installed jets and try again. Any help or advice would be greatly appreciated.