Re: Back firing

Posted by Andyt59 on Aug 22, 2010; 5:06am
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/Back-firing-tp1270157p1270750.html

I'm running the stock filter also installed a new set of plugs.

I cleaned the carbs myself. It's amazing how clean the dishwasher can get stuff with liquid soap (Don't use the powdered or crystal type. that will definitely plug things up).  All the diaphragms looked good (not hard, brittle or cracked) and the manifold boots are still in excellent shape (again, not brittle cracked or hard). The idle will drop if I adjust the knob. I carefully cleaned the idle jets  with air and a set of welding tip cleaners (yes, I have done this many times with no ill effects.) I did the air leak check but I used non-chlorinated brake cleaner to do it (Also good for cleaning carbs) and it didn't affect a thing.

The only other thing that it could be is the mixture adjustment and that's what scares me. Isn't that what knock out the synchronization of them? or is that something totally different?