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DIY Home Built Motorized Bicycle (non kit) Post all about your home built rides here. Weedwacker motors, lawn mower engines ect. This area is for non kit builds

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  #1  
Old 06-22-2015, 11:25 AM
msrfan msrfan is offline
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Default Bill's Vintage Briggs Motorbike Build

My friend Bill and his son made this bike from an early frame he modified by looping the bottom, adding truss rods to the fork and beefed up rear wheel supports. He also lengthened the bars and installed a vintage headlamp. Our friend Mike made the beautiful tank and I supplied the rear Musselman hub and front skipper sprocket.
The engine is a model FH Briggs and Stratton that's missing a lot of parts. It has one external pushrod for the exhaust valve and the intake is atmospheric. He's working on adapting a later flywheel to replace the original broken pot metal unit. It will use an external magnetron pointless coil on a homemade bracket, maybe with adjustable timing. After soaking the kick start gear to free it up, a kicker and segment gear will need to be fabbed to match and then a pivot shaft mounted in the correct position. The governor is located inside the cover on the left. I don't know yet what he plans for it. We're searching for a suitable carburetor that will be adapted and he'll use a belt drive to a rear pulley mounted to the wheel, probably a nice flat 24'' bicycle rim.
Bill also has a lawnmower clutch we're going to check to see if tit has possibilities.
Some kind of jack shaft may also be added.












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Old 06-22-2015, 11:28 AM
msrfan msrfan is offline
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Default Re: Bill's Vintage Briggs Motorbike Build

This is the clutch we're thinking about and some more pics of the bike.











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Old 06-22-2015, 03:48 PM
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Ludwig II Ludwig II is offline
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Default Re: Bill's Vintage Briggs Motorbike Build

Have you seen the video of the Buddfab 1905ish motorcycle?
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Old 06-24-2015, 09:49 AM
curtisfox curtisfox is offline
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Default Re: Bill's Vintage Briggs Motorbike Build

OK Got to watch this KOOOOOL build,love the old briggs builds. .........Curt
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Old 06-24-2015, 04:27 PM
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Ludwig II Ludwig II is offline
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Default Re: Bill's Vintage Briggs Motorbike Build

https://www.youtube.com/watch?v=L-FE42yduNI
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  #6  
Old 06-24-2015, 09:33 PM
BOYGOFAST BOYGOFAST is offline
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Default Re: Bill's Vintage Briggs Motorbike Build

Amazing ..
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Old 06-24-2015, 10:17 PM
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Intrepid Wheelwoman Intrepid Wheelwoman is offline
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Default Re: Bill's Vintage Briggs Motorbike Build

Oh my. I love this bike

Old engines rule!
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Old 06-24-2015, 11:37 PM
MEASURE TWICE MEASURE TWICE is offline
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Default Re: Bill's Vintage Briggs Motorbike Build

I'll hope to have some time to do a bike with a 5S or 6S Briggs I have wanting to get going. I'll be watching how your work continues!
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Old 07-26-2015, 11:46 PM
msrfan msrfan is offline
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Default Re: Bill's Vintage Briggs Motorbike Build

Bill's been working on the mount for his vintage Briggs. He's got it all cut out and mocked up for welding. The base is from a lawn edger.









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Old 07-27-2015, 09:29 AM
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racie35 racie35 is offline
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Default Re: Bill's Vintage Briggs Motorbike Build

Looks rugged ...tack it on
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