Must be a minor difference, or I am looking looking close enough. I thought about porting mine while it was off for the LIM, but decided not to since I don't know enough about it.
I am also experiencing a little grumbling, mostly at idle, but it is also a little a little rough sounding at full throttle. I pulled the belt and it seems slightly quiter, but did not entirely go away. I am wondering if I need a coupler, and what coupler is considered the best. Is the zzp the way to go, or are there better/cheaper couplers?
