Ran last night. Didn't run chain tensioner. Using blue springs. It engages about 2600 to 2700 rpm. Still jerking and grabing. The drum and shoes are fine as far as I can see. Just don't understand this. If all of them did what this clutch is doing I don't see how they could sell them. I amy send it to Martinbuilt to see if he can straighten it out.
When I gas it it grabs but it's terrible up till then. I have measured the drum and it seems good and round. Very disappointed with it.