Exhaust "popping" can also be, and usually is, a result of tuning. Don't automatically assume you have a leak because of the popping. With bike idling, preferably in confined area, carefully blow some smoke from a cigar towards suspected area of leak and watch to see if smoke is blown away by leak. Otherwise, dialing in your tune may be necessary. I have no exhaust leak on my 13' RG and have run multiple auto-tunes with a PV to dial it in. Bike runs strong but still pops on occasion. I wouldn't sweat it...
Last edited by gliderman; 07-14-2014 at 12:51 PM.