Motorcycle Repair: Hearing a Noise, honda cb360, rob drew

Question
Hi Falcon,
Thanks for taking my question. I have an old '75 Honda CB360 that I recently got going after being in storage for 4 years. It is running really well after a few months of working on it. I have recently been riding it around the neighborhood, and I've been hearing a "popping" coming from the left muffler. The sound occurs predominantly when I let go of the throttle and let the bike cruise while in gear. Any idea what the noise might be? Maybe I need to sync the carbs? Thanks alot.
~Rob Drew

Answer
Hi Rob.
 This is not a big problem.  The solution is to doublecheck the valve gap and ignition timing.  A carb synch can't hurt, but I don't believe it to be the cause of the problem at all.

All the specs for the valve gap and setting the timing correctly are in the repair manual.

Good luck.
FALCON