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Old 11-09-2012, 05:52 AM   #16
gunnerbuck OP
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Joined: Nov 2005
Location: N.V.I, B.C.
Oddometer: 4,248
Originally Posted by B-Rod View Post
An FCR on a 640 would be fun fun fun. Maybe fire off a message or call Motolab. He might have some jetting suggestions, or even JDjetting. To me a 162 main at sea level sounds lean for the air a 625cc pumps through
162 is the closest of the 2 jets I have on hand, remember the SXC with a 41 FCR only runs a 165 in stock form... My airbox has been left stock so the current jetting shouldn't be too far off...
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