Ok, I have a drz 125l, and im about to install a BBR exhaust system. Do I need to rejet my engine once I install it? Everything is stock on this bike. Also, I'm gonna remove the snorkel from the airbox, I dunno if that will change anything either.
Your bike is very lean stock. Aftermarket pipes generally like fatter jetting. That makes for a VERY lean condition. The lean mix will cause the engine to run hot.
Yes. The bike is too lean stock and the pipe will make it worse. If you change the pipe and pull the snorkel the bike will be so lean it will run very poorly. Rejetting is a must .
Ok, so now my plan is to rejet it, then remove the snorkel... Sound good? And how exactly d I rejet the engine, take it to the shop? And how much should this cost? Thanks for the help, saved me $300.