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Old 06-09-2014, 10:40 PM
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Davezilla Davezilla is offline
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Join Date: Mar 2014
Location: San Antonio Texas
Posts: 2,710
Default Re: muffler gasket blowout

Originally Posted by crassius View Post
I have no problems with these, and don't even bother to replace the studs with stronger ones. When an engine is new, I fire it for a few minutes on the bench, cool it down, fire it again, and so on 4 0r 5 times. During these runs, I do not use the muffler hanger, so that the muffler will shake a bit to compress the gasket nicely.

When this is done, I tighten it and then add the hanger.

Then, like with the motor mounts, I check tightness before each ride for first 40 miles or so, then deliver to customer.
That's the best way to do it when selling assembled bikes, the repeated heat cycles and re torquing will ensure the end user don't run into problems with hardware coming loose.
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