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 5 Speed Gokart Build

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TheGreenHornet
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PostSubject: 5 Speed Gokart Build   Wed Jun 20, 2018 8:09 am

Hey guys, I came up with another project. This one I WILL finish, because I now have the ability to cut and weld at home, which makes projects significantly easier.

So, I have an old gokart frame. Too nice to haul to scrap, but the engine blew a while back and I've been searching for a use for it ever since. Steering is tight, good tires, roll cage, very solid overall.

The other day, CQ gave me a peerless 900 5 speed for my dynamark project. I ended up not using it, but then i started eyeing the gokart frame. Did a few quick measurements, and realized I could cut out the live axle/casing/bearings, stow that away for use on some project on down the road, and slap that tranny up in there. The tranny will be locked, and to mount it, I will cut some pieces of sign post to both cover the area of the frame cut out and overlap the pipe on the frame about 3 to 4 inches on both sides, top and bottom. I will be using a signpost will pre drilled holes, ive got tonnes laying around. I hope you guys can picture what i'm trying to describe lol!

I would do an inline shifter to the right side of the driver, for the 5 speed. A 3rd pedal would also be included, to keep the clutch and brake separate. But, When you hit the brake, there will be a bar or tab to carry the clutch pedal with it, so you aren't trying to brake with the clutch still engaged.

The engine would be a briggs quantum 4.5hp off of my pressure washer, which died Monday. That engine is the whole reason this project came around. I'm Always looking for a good use for pushmower engines.

It would be a belt drive, which simplifies things. The shifter mechanism will come from a Troy-bilt mower I have laying around.

Let me know what you guys think about it, or if there are suggestions to solidify anything
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MatthewD
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PostSubject: Re: 5 Speed Gokart Build   Wed Jun 20, 2018 9:46 am

Sounds like a good plan! Got any pics? I love those Quantum engines, they go on forever. The good thing about using an engine off a pressure washer rather than a push mower is that push mower engines (esp. newer ones) have aluminium flywheels and don't run very well without the blade, which acts as a flywheel.
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Crazy_Carl
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PostSubject: Re: 5 Speed Gokart Build   Wed Jun 20, 2018 4:42 pm

Sounds like a good plan and I’d like to see pics too.

Sign posts seem strong enough to work with but I wouldn’t use a sign to mount anything. I’d use it for a fender or floorpan.
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CraftsmanQuad19
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PostSubject: Re: 5 Speed Gokart Build   Wed Jun 20, 2018 5:12 pm

Aw shoot. I forgot about the flywheel thing. We fully intend on going through a lot of engines, so I guess I’ll have to pull some flywheels at least from pressure washers. This is also a good base to test some other pushmower engines longevity and power
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TheGreenHornet
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PostSubject: Re: 5 Speed Gokart Build   Thu Jun 21, 2018 11:04 am

sign posts are more than strong enough to work with. My grandpa used to work for the highway department, so he has a lot of sign posts that are 1/8 inch thick steel. When you put two pieces together around existing solid pipe, I think that makes for a pretty solid mounting point. I will be able to get you guys pictures this afternoon.
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