Bad Gas Mileage

[JonBankston]

Had a question about my Goldwing. I bought it non running about 6 months ago. Sat for a year or two with bad gas and winterizer in it. Rebuilt the carbs, added a filter, and synced the carbs. Now the bike starts and idles perfectly but will only accelerate correctly about 15% of the time riding it and it gets really poor gas mileage. Went about 20 miles or so and it burnt just about 1/2 a tank. I’m thinking it isn’t getting enough fuel pressure? I can’t quite figure this one out. These bikes are more complicated than what I’m used to.

[LeMaitre]

20 mpg definitely is bad. 70+ MPH into a headwind got 29-32 mpg on winter gas last weekend on my '85 GL1200A.

No solutions but a couple of thoughts. Have you checked for vacuum leaks? Another thought is some kind of air restriction. Engine is getting adequate air at idle but as you accelerate you are actually decreasing the air mixture like running with the choke on.

-Mark

[JonBankston]

I do remember a vac line that I’m not sure if I remembered to hook up when I put the carbs in. I can check that. But when sometimes it will accelerate perfectly and other times it’ll just choke on itself. But I will look for that line and get back to ya. Thanks