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Old 06-09-2014, 08:44 AM
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Davezilla Davezilla is offline
Motorized Bicycle Elite Member
Join Date: Mar 2014
Location: San Antonio Texas
Posts: 2,710
Default Re: Problem with centrifugal clutch - Newb

I had to take off about 2 thousandths ffrom the OD of the shaft extension then polish it before the bearings would roll smoothly one way and lock up like they're supposed to the other way. Most the ones sold on ebay have the one way clutch built in and these are supposed to be run dry, just gotta grease the one way bearing and the shaft extension regularly. I know Grubee sells one that don't have the one way clutch and the case needs to be sealed off so it can hold about 3 ounces of oil, these are better because the gears never run the risk of running dry but they can only be used with a pull start.
The ones with the one way clutch don't have the right friction material to run in an oil bath so they need to be greased often and that's why the guy on youtube added more gaskets and drilled the hole to make the routing lubing much much easier to do.
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