3.5hp Briggs Vertical to Horizontal conversion Go-kart

So here is the 3.5 hp lawnmower engine we converted to a horizontal shaft engine, mounted on a go-kart.
More info to follow.

Category:

Education

Tags:

• Briggs
• and
• Stratton
• Vertical
• to
• Horizontal

[jims72]

did you have to turn the shaft size down to get a clutch to fit or were you able to find a clutch with the correct size?

[ChargerMiles007]

@jims72

You are right, we had to turn the shaft size down from 7/8" to 3/4", to find a clutch to fit. At the same time we discovered that the shaft was bent a bit, a common problem with lawnmowers. One rock in the wrong place, and BANG, a bent crankshaft :(

[bobhadababitsaboy]

do you know anything about the gx200 and gx 160 motors

[ChargerMiles007]

@bobhadababitsaboy

Sorry, I don't.

Hey, does anyone else out there know about a gx200 or gx160 motor????

[cptexas1]

What's the reservoir for - brakes?

[ChargerMiles007]

@cptexas1

Yes, we used a car master cylinder, and 1 caliper for the brakes. A friend hand made the brake rotor and hub.

[outdoorsman310]

cool

[ChargerMiles007]

@bobhadababitsaboy

There are a bunch of ways, weld up the head a bit to increase compression, weld up the cam lobes for more duration and possibly lift. Grind out the inlet and exhaust ports, removing casting flash etc., a less restrictive exhaust, and a bigger air filter. :)

[bobhadababitsaboy]

how do you get any power out of a briggs 3 hp flat head

[pcblah]

@ChargerMiles007 lol we made alot of comments :P looking forward to see that vid