I have a 1989 Venture Royal and I don't seem to be getting very good mileage. I go about 100-120 miles before reserve light comes on. Fill up and it takes about 3.7 to 4 us gal, which works out to about 30 miles per gal. Bike has 63000 miles and runs very good, I have not run it hard, average speed 60-65 on highway. I am going to run seafoam through and check the plugs. Are there any other problems that could be causing the poor mieage ? Any suggestions will be most welcome.
Falconbm