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Date Posted: 23:06:10 03/04/07 Sun
Author: mullens
Author Host/IP: NoHost / 75.34.75.177
Subject: 2007 rules

Dont know the rules but here is a good set engine rules.

ENGINE RULES
4 cylinder 600 cc stock engines. Stock engines as the motor was run on the motorcycle from the factory with the charging unit. No engine work (no ported heads, no lightened canks, no cam degreeing, no lightened pistons, no head cleanup). Stock pistons only. Any air cleaner will be allowed. Any exhaust will be allowed. Rods, pistons, cams, etc. must be stock parts as used on the motorcycle the motor came from. Carburetors must be the same make and model as the motor. Factory injection allowed on gasoline powered cars only. Stock Power Commander is allowed on injection but no external adjustments will be allowed. Carbs may have metering rods, jets and springs changed to tune the fuel curve to match the car requirements. Allow only 1 OEM black box with manufacturer’s part number to be used on that make. Any type of box that has an external adjustment is considered illegal. Boxes allowed include STOCK black box style Honda “HRC” version or “Yamaha Racing” versions. No aftermarket CDI’s (ignition black boxes) allowed. Aftermarket timing advancers are illegal. Cam gears that are redrilled, slotted or altered are illegal. Internal charging systems components must remain in the motor. Any sprocket (520 or 530) will be allowed. 2003, 2004, 2005 and 2006 methanol powered engines are allowed on carburetion only. Stock or billet boots are allowed.

EXCEPTION: NO KAWASAKI 636 AND NO 2006 YZFR6V(C) and/or BLACK BOTTOM MOTORS allowed. No current production (2007) motors allowed.
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