Have you checked for dragging brakes?I am getting 19 MPG... any thoughts as to why on an 81 GL1100? Carbs have been cleaned and re cleaned. Sorry to those who have seen this posting twice... I wanted to create a new one so that you guys will see it. Thanks for the help.
See if you can turn the wheels by hand, check for blue brake rotors, caused by dragging and overheating. 19mpg is very bad, I've never heard of such low mpg, there must be something seriously wrong. Dragging brakes is a good place to start looking.How do I check for that?
Take it out on the highway for ten - fifteen minutes then coast to a stop and carefully feel the rotors. If one or more are hot not just a little warm you've found a problem.How do I check for that?