Exhaust crush washers - which way 'round?

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Jun 14, 2007
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I've got a pair of Commando crush washers to use with my new 750-style pipes. My 850 had collets, so no old washers to observe on removal. The washers have a flat side, and a rounded (convex curve) side - which side goes in/out?

Thanks all - BrianK
 
Joined
Oct 25, 2007
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I always fit mine 'flat-side' into the head - curved side against the exhaust.
 
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