Re: Backfire 71 CB

Posted by rrgunslinger on
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/Backfire-71-CB-tp4029009p4029011.html

In my case it was caused by a lean condition.  Are you saying you put a free flowing muffler on?  If so you may need to raise your needles and adjust your air screws. Each bike is different. Took me awhile to get mine right.  I have a 1973.  What I did is under the project area.