Briggs powered custom bike

MarksA-C

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Aug 6, 2009
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SE Wisconsin
Now, it isn't really custom...more of a gender bender. it was a Schwinn girls bike and now its an almost usable awesome motorized bike! Like I said, it was a standard girls bike, I cut out the top bar, used a piece of the top bar and stretched the bottom bar 7" (Approximately) and then made a nice curve top bar with a piece of scrap pipe (Beating it against the ground) and then making the motor mounts!

The motor I'm using is a 3 Hp Briggs and Stratton engine I got a few months ago. It was seized, but I was able to bring it back from the dead and it works better than ever! :eek:

The drive is going to be a belt-clutch off of the engine going to a torque converter on a jackshaft, then from a sprocket on the jackshaft to a second sprocket mounted on the wheel (Like in the kits). For the wheels I am getting a set with the heavy duty spokes.

Girls bike before...
CIMG0919.jpg


This is how far it is now. About a month or so into the project.
CIMG0036.jpg


CIMG0037.jpg


Take care everyone
Mark-
 
I've seen your project over on Ratrodbikes.... I like the gender-bender stretch you have performed on this bike!!

The motor I'm using is a 3 Hp Briggs and Stratton engine I got a few months ago. It was seized, but I was able to bring it back from the dead and it works better than ever! :eek:

I, for one, would like to hear more about how you brought this seized Briggs 'back to life'.

UH OH! I think I need sleep, as I think I posted in the wrong area SORRY
I'm not sure if this is the wrong area.... would you like this thread moved to...maybe, the Frame Mount Drive Train section?

I want to see it come together.

Thanks for posting.
 
For the engine, after I got it I pulled off the cylinder head and checked the cylinder walls and from what I could see there wasn't any scoring or damage. Sprayed around the cylinder with PB blaster and then filled it with 30wt non-detergent oil. Then Completely filled the engine with 30wt oil. I had the engine practically upside down and I COMPLETELY filled it with oil. Then let it sit for a few weeks.

I put a vise-grips on the crankshaft and at the same time when pulling on the rope I hit the vise grips with a hammer. Broke it all loose. Drain out half of the oil and just kept spinning it until it was freed up.

I checked internally and there was no damage or scoring. Got lucky on this engine.



As for where the post should be, I was going to put it in the frame mount section. was too tired to notice what I was doing yesterday.

Mark-
 
Call me a nut but I've been riding bikes since my folk use to add wood blocks to the pedals.
That girls bike is really a boys bike and vise versa, since dropping on that bar a few times I have come to realize like everything else bikes are also twisted.
good looking mod
 
Very nice. I like the way you extended the frame for pedal clearance. I should have waited on my latest project. I went the other way extending the rear triangle and placing the engine behind the seat post. Yours looks more.....factory. I like it.

Denny
 
That's one heck of an idea
I never thought of using a woman's bike.
Lot less fabrication.
I'm "stealing" your idea
 
MarksA-C
For your next frozen engine try Coke Cola the method most chosen by guy's restoring/resurrecting old farm tractors.
 
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