Join Date: Sep 2005
Location: Parker, Colorado
It is only recommended to replace the head bolts. I have reused them several times, with no problems, on any of my quads. Theoretically, they could stretch, causing you to get inaccurate torque settings. Did you make sure that your head and cylinder mating surfaces were very clean?
TEAM TRIGGER RACING (Now sponsored by AMSOIL, Vickery Motorsports, MotoXNutrition,DZ Graphics, Engine Ice, DeRisi Racing, Team Ape, Cosworth Pistons, Hiper, Lonestar Racing. Barker Exhausts Terse 07 Race engine
2007 Blue YFZ: Venom 14:1 piston, Cam Mod, Jardine RT4 Exhaust, 175 main, 45 pilot, 04 needle 3rd clip/ 3 t 2013 YFZR....
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