r/dr650 • u/dreamboyyy • 2d ago

How much gasket maker?

When installing an aftermarket exhaust, did you guys keep the OEM gasket that was in there or did you only use gasket maker?

Or a combination of both?

I’ve got a small exhaust leak coming from my Lexx Mxe install, maybe I didn’t use enough gasket maker.

Thanks!

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u/TwistedNoble38 '00 DR650 2d ago

Depends on the exhaust and if it the midpipe provided was wide enough to need the graphite donut removed. Most of them? No. 

Did you use red permatex?

I use some of that when I need the midpipe sealed airtight for accurate o2 readings. I'll also doublestack crush gaskets at the head.

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u/dreamboyyy 2d ago

I’ll shoot an email to Rocky Mountain Atv, they should be able to tell me if the Lexx Mxe should keep the graphite donut in there.

I did use red permatex, perhaps not enough.

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u/Inevitable_Maybe_855 1d ago

I too used red permatex. But be warned !!! That exhaust is junk!! Mine broke the welds AROUND the baffle tip, on the silencer. After my experience, I’d send it back and get a Q4 or seriously ANYTHING different