Backfire on Deceleration
I have a 97' vn750. As far as I can tell everything is stock.
When i let go of the gas, it backfires quite a bit, not really loud backfiring, but popping sounds. It does this quite a bit more when I'm decelerating. All though, it still does do it when the bike is not in motion. while the bike is just sitting idle, it is a rare thing to have a backfire.
My service manual says this could be three things broken vacuum switch valve, air suction valve, or the coasting enricher.
I popped off the little coasting enricher cover on the right side of the bike, and found a spring, and a tiny piston, along with a small hole in the cover that I removed. Its all very clean, and there is nothing i can see to be adjusted in there.
As far as the other two possibilities according to my manuel, i have not checked at all yet just becasue i dont have means to test a vaccum, or a possibly part. But does anyone have any suggestions or advice for stopping the backfiring?
This is my first post, and i think you should all know i'm very new to motorcycles! This is my third bike, and I haven't even been riding 9 months yet. Ive never taken carbs apart before, and i'm afraid thats whats going to be required of me for this problem. =)