Motorcycle Repair: EVO, bobby wood, drive ratio
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Followup To
Question -
Johnny im running a stock 80evo on a FXR mostly hwy driving 2up need some ump! whats your thoughts on this ? and Ballpark what kinda money Thanks John
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what year evo?. 2000 FXR4
AnswerI WOULD FIRST INSTALL A PRIMARY GEAR KIT FROM HARLEY. IT HAS A 21 TOOTH MOTOR SPROCKET. YOURS IS A 25 TOOTH. THE STOCK FINAL DRIVE RATIO IS WAY WAY TOO HIGH, NEXT A BOBBY WOOD TW-6 G CAMS WITH GEAR DRIVE AND A +4 DEGREES KEY. THIS IS A BOLT IN CAM, A WHITE BROTHERS E-SERIES 2 INTO 1 HEADER, A SET OF WISCO 10.0:1 POP UP PISTONS WILL GIVE YOU ABOUT 80 HORSE AND 80 FT LBS OF TORQUE.
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