Honda Twins banner

1 - 3 of 3 Posts

·
Registered
Joined
·
2 Posts
Discussion Starter #1
Hey all, my 79' cm400t has a new issue this spring. It starts up and idles nicely(1200rpm), after 4-5 minutes it will begin to make some growl/rumble sounds like its going to backfire, then rpm jump to 4k and sit there.

I've checked for vacuum leaks and haven't found anything. I will be doing a leakdown test this afternoon and see if I learn anything. I am running pods with 95 mains and 125 secondary. Any thoughts?
 

·
Registered
Joined
·
31 Posts
im having the same problem only for my right cylinder. although, once it starts, the right side won't rev immediately and then starts to backfire.
Did you figure out what your problem was?
 
1 - 3 of 3 Posts
Top