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Whizzer Motorized Bicycles Whizzer motorized bicycles are still produced today, and one of the oldest motor bikes around. Share some of your stories about this timeless classic with us today

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Old 11-07-2009, 05:46 PM
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jbcruisin jbcruisin is offline
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Location: Lebanon, Pa.
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Default Whizzer Cam Timing

Took my son's top end off a few weeks ago for some Quenton upgrading. Put it back together & it wouldn't run. Seemed like the timing was off. Checked tappet clearance, carb for dirt, cam timing ( had cam out to install mushroom lifters). Finally got on the phone with Quenton. Here when his bike was made in Taiwan they put the crankshaft timing gear in wrong. The mark was in the wrong place. I lined the cam up with the dot on the gear. To correct their problem they center punched another mark on the gear. After Quenton & I talked about this we agreed that the center punched mark is where we line up the cam gear mark. Works fine now. This must have been missed by Taiwan's Quality Control. Am I the only one who has had this problem?
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Old 02-10-2010, 10:25 AM
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Quenton Guenther Quenton Guenther is offline
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Default Re: Whizzer Cam Timing

Hi Jay,

After rebuilding 23 motors over the last couple of months, several had the timing gear installed wrong, marked wrong or in some cases the camshaft was advanced TWO teeth.
One of the motors had 4 marks on the crankshaft gear and 2 marks on the camshaft gear. I had to connect my dial indicators to get the valve timming correct on that motor, and none of the marks were correct.

Have fun,
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