poping

[scissorman]

what will cause a slight poping when i back off the throttle. thanks

[bassin]

Well mine started taht and I found a vacumn hose had craked and was allowing air flow . Check the hoses connected to the carbs. Hope that helps that was my trouble.

[Psychotic Bovine]

I had found a missing header bolt.  that was allowing a very tiny amount of air into the exhaust and would pop on decel.

[Big Rig]

What year is your bike??? Had the same thing this past August....Vacuum line had a hole in it....temp fix was electrical tape over the leak. Popping stopped right away...replaced with 5/32 vac lines from auto zone about $5. 

Let us know how you make out.

[John U.]

Check out the screw clamps on the boots that attach the intake tubes to the carbs. There are two per. I just checked mine and two of them loosened up in 1 riding season.
Intake tube O-rings get flattened out and leak too. Any vacume leak can cause that.

[Zorba]

Could not pass that one up, sorry Bro!

[scissorman]

problem solved ,vac line .  thanks