Stock 4x4 exhaust - Size of pipe exiting the muffler

[Phishhead61]

Hey Gang,

 

I have a '98 Royal Star Boulevard (XVZ13A) which a PO did a lot of work to. They installed K&N pod air filters, Nasty Boyz 4x4 exhaust, and re-jetted the carbs. I have added baffles to the exhaust due to how loud the aftermarket exhaust was. This is causing the bike to run VERY rich. I have to re-jet, but in order to do some calculations as to what to re-jet to, I need to know how big the exit hole in the back the stock muffler is.

 

Could someone run out to their garage/shop/shed and measure the diameter of the exit hole in their stock 4x4 exhaust?

 

Thank You!

 

Rich

PhishHead