Exhuast Donut Replacement a real SOB!!!!!!!

[MrSled]

Thanks for the quick reply MrSled. It may have been closer to 1/16th actually. But I was not scientific in how I ground it. Just went hog-wild on the grinding wheel. I thought it would be fine if there was extra removed. I never thought those flanges could crack from being over tightened and I wanted to ensure that it never came loose at those joints if the copper seated in or whatever. Those bolts definitely got the "farmer twist" on install also. He's an X factory guy but has his own Yamaha shop. He actually makes these copper donuts so I do think he knows what he is talking about! Just looking for some additional thoughts on it. I would rather tear back in there and make it right than have flanges cracking shortly down the trail:/

I have faith that you are good. New flanges are all SS anyway, they wont crack with that kind of load.

 

[1780xtx]

We did an Apex in 2016 that needed 2 out of 4 clamp stoppers shaved down to get them to snug up properly. The measurement used was to shave off enough to be able to pull the ends together by finger within 1/4 inch of each other, then pull it together with the bolt. Snugged up nicely, it's been good ever since.