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Old 04-17-2010, 08:37 PM
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RedB66 RedB66 is offline
Motorized Bicycle Elite Member
Join Date: Dec 2007
Location: Sunshine State
Posts: 1,024
Default Re: Engine Sprocket Swap

You should be able to run the 415 on the sprocket. Where is it wanting to derail?

If you do swap the sprocket out..... The woodruff key is going to determine if you can swap them. If the slot in the sprockets are the same then you're in luck. If there is any play I woudn't advise the swap.

You should have a puller tool that came with your kit. Remove the cover, pin and ball. Remove the nut holding the gear on (I usually use a couple links of chain wedged in the housing to hold the gear from turning). Then thread the puller on. Make sure that it is seated all the way down because the threads will strip very easily (Trust me!!).

The puller tool is a two part tool. The larger part threads onto the gear and the bolt looking part threads into the center. A cresent wrench works for holding the larger part while a socket turns the bolt.

As you turn the bolt the sprocket should come off. There is a woodruff key to watch for.

Hope this is clear.... I'm sure someone will add any points that I left out.
"Never do anything you wouldn't want to explain to the paramedics."

Last edited by RedB66; 04-17-2010 at 08:50 PM.
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