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Old 09-26-2010, 07:28 PM
jrev1 jrev1 is offline
Motorized Bicycle Newbie
Join Date: Sep 2010
Location: florida
Posts: 2
Default new and having problems

iam having problems keeping the chain on, the motor and the rear sprocket line up good the idler bracket seems alittle weak and not lined up perfect i tryed running it without the idler and still had problems. the kit i have has the standard bike chain and it just seems really thin i have had alot of mini bikes and never had these problems. If anybody has any ideas i would really like to here from you thanks.
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Old 09-26-2010, 09:12 PM
2door's Avatar
2door 2door is offline
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Join Date: Sep 2008
Location: Littleton, Colorado
Posts: 16,222
Default Re: new and having problems

Welcome to the forum from an old Florida native.
Chain alignment and tension is critical. So is the rear sprocket installation. The rear sprocket must be concentric to the rear hub with absolutely no wobble. The chain tensioner is either required or not depending on your frame. Tension is very important. 1/2 to 3/4" slack on the upper portion of the chain, no more, no less.
Some folks have had problems with rough teeth on the rear sprocket which can be smoothed with a metal finishing pad chucked up in a drill or a side grinder, if you have one. Check your alignment carefully and spin the rear wheel to check for sprocket concentricity to the hub.
Age and Treachery Will Always Triumph
Over Youth and Skill & "Charlie Don't Ride"
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