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Old 11-03-2012, 11:08 PM   #9
Beastly Adventurer
Joined: Jul 2010
Oddometer: 1,076
Originally Posted by gunnerbuck View Post
Part of the XR 650 guys problem could of being getting the pipe to properly seal... I pressed mine on with retaining compound and once I get the thing fully cleaned up I will add a bead of sealant around the pressed on rim just to make sure air can't leak in...

I was going to get my machinist friend to make me up an adapter but he was busy at the time so I figured I would try the SS pipe for a start... Even without the adapter the FCR has quite an abrupt entrance into the bell... The SS pipe really doesn't change anything with that except adding a longer throat to the airbox... If it turns out to run poorly I'll think about adding a stabilizing vane to the throat...
I had a lc4 with a 39mm fcr (carb from a jap bike),the bell could be ordered from ktm to fit the carby,if the 37mm is the same as 39mm, have a look at the part numbers from a 00-06 ktm 660 rallye.
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