I am not able for the life of me to get the exhaust headers on my 05 Grizzly 660 to stop leaking no matter what I do. I had to take them off to do some engine work, and am attempting to put them back on. I replaced the studs because they were bent. I’m using new gaskets. Anyone know of any other tips or something I could be overlooking? I even tried running it straight pipe (no muffler) to see if the muffler was blocked up.

Does anyone know which order of dances I need to do to the Yamaha Muffler lords?

The only other thing I can think is would the bigger cylinder really be pushing that much more exhaust through it? Went from a 660 to a 686. I really don’t have the funds to replace the headers and muffler with performance right now though.

Is there something else that could be leaking that looks like it’s coming from the pipes?

Thanks,
David