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| 150cc GY6 and Under Engine Tech GY6 and Smaller Technical Discussion Forum |
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#2
04-22-2013, 10:23 PM
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Variator has nothing to do with it.
Make sure your piston is at TDC and in line with the flywheel and timing indicator (use a straw or something to verify or mark your flywheel prior to head removal) Then make sure your cam holes are in line.
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My Yerban assault vehicle: 2.2mm stroker crank, 62mm Nikasil cyl, Taida large vavle head, American made valve springs, ported intake manifold, TM 28mm carb, stock CDI, Bando coil, TK exhaust, stock CVT except for the 14g sliders, 13/40 internal gears, 16T drive, 31T axle sprocket, 22" rear tires, and ONE BIG POTATO CANNON mounted on top.......... 
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#3
04-22-2013, 11:27 PM
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What I do is remove the fan cover and mark the flywheel/magneto to the pointer on the engine case, with the cam with the big hole at top center and the two small holes at the edge of the cylinder head.
Check out youtube for gy6 cam timming and I am sure there is some good videos to help you. The first time it seems difficult but after you do it a couple times you will be a timing pro.
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