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Old 09-30-2011, 09:32 AM
msrfan msrfan is offline
Motorized Bicycle Elite Member
Join Date: Sep 2010
Location: Southern California
Posts: 1,484
Default Re: Hey i'm new (need some help)

Originally Posted by air250 View Post
I am using a 3.5 hp B&S lawn mower motor that i had recently converted from a vertical shaft to a horizontal shaft. (which was not too bad) but i am now stuck on adding a clutch to the crank shaft so that the bike will b able to idle once i start it. Or maybe there in another way to make it idle ether way could any one help me with this problem. Thanks
Hey air, Welcome. Does your Briggs have an aluminum flywheel? If it came off of a rotary mower, the blade acts as part of the flywheel effect, allowing for a smooth idle. You will need a cast iron flywheel if that's the case. Also, what carb are you using and did you disable the governor? Did you add a dipper to the rod for splash oiling? Would like to see photos of your bike as I've been putting Briggs motors on bikes for 25 years or so.
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