Mini Bikes!

[///d]

Originally Posted by CTinline-six

Yep, they are pricey new. Same with go-karts.

I've built a few for friends who have kids and you can find really good condition used ones for decent prices on facebook marketplace, craigslist, offerup, etc. The last one I bought was a little lime green doodle bug for $60. The engine was blown because they forgot to check the oil, but the rest of it was mint. Bought a $99 Harbor Freight motor, and bolted it on in about 20 minutes.

Originally Posted by CTinline-six

I don't make any of the frames. I usually find a rolling chassis or a cart with engine problems and spruce it up with go fast parts, tires, paint, etc. My go-to engines are the Predator 212cc and the Honda GX200. Very easy to modify and lots of parts available.

I was saving my 600cc race bike motor after I wrecked the bike because I was going to put it in a kart chassis. I had everything figured out on how to do it, just never got around to it. Finally got sick of it taking up space in the shop and got rid of it. Probably for the best, no way I wouldn't do something stupid on it.

[floridaorange]

new foot pegs, decals and a smaller catch can ordered. I keep blowing the side panel gasket, think the guy I've been working with ordered a bad batch, going to use a genuine honda gasket this time. When it isn't blowing a gasket it's fast and fun though!

[CTinline-six]

Originally Posted by ///d

I was saving my 600cc race bike motor after I wrecked the bike because I was going to put it in a kart chassis. I had everything figured out on how to do it, just never got around to it. Finally got sick of it taking up space in the shop and got rid of it. Probably for the best, no way I wouldn't do something stupid on it.

In high school a friend stuck an engine/trans from a Yamaha YZ125 into a tiny little go cart. One ride on that down the street was enough for me. I wasn't sure if the tie-rods were going to snap first or the axle.

[CTinline-six]

Originally Posted by floridaorange

new foot pegs, decals and a smaller catch can ordered. I keep blowing the side panel gasket, think the guy I've been working with ordered a bad batch, going to use a genuine honda gasket this time. When it isn't blowing a gasket it's fast and fun though!

Side panel as in the crankcase cover gasket? What is your breather setup? Sounds like a bit too much crankcase pressure.

[tqy]

cool

[floridaorange]

Originally Posted by CTinline-six

Side panel as in the crankcase cover gasket? What is your breather setup? Sounds like a bit too much crankcase pressure.

Originally Posted by CTinline-six

Side panel as in the crankcase cover gasket? What is your breather setup? Sounds like a bit too much crankcase pressure.

Great point - we are gonna drill a hole and add a fitting off the gov arm and run 5/16 tube to catch can - thank you for the idea

[upstatedoc]

Originally Posted by tqy

cool

[floridaorange]

Switching out the stock fuel tank for a smaller custom cylinder tank to accommodate the pressure release valve. Adding a new foam intake filter that won't fall off if you nudge it like the others I've bought.

[whyzee125]

Yup! My friend started a little pit bike series in my area and we have more than 30 people now. We race about every 3 weeks when the weather is good. We have about 6 tracks now at various friends houses, several over a mile long. Has to be the best ratio of smiles per dollar I’ve found!

[floridaorange]

Rides perfectly now, thanks again for the pressure valve idea, it has never ran this fast before

[floridaorange]

One more mod to decrease the amount of oil going to catch can by dialing in the crankcase pressure.

[CTinline-six]

Looks great! I bet it sounds good too. Have you used GPS to find the top speed?

[upstatedoc]

Originally Posted by floridaorange

One more mod to decrease the amount of oil going to catch can by dialing in the crankcase pressure.

Is it street legal? How do you get it to the gas station?

[floridaorange]

Originally Posted by CTinline-six

Looks great! I bet it sounds good too. Have you used GPS to find the top speed?

Originally Posted by CTinline-six

Looks great! I bet it sounds good too. Have you used GPS to find the top speed?

Haven't gotten it to top speed…. still getting used to it at these higher speeds and rpms, soon though, expecting 65 ish

[floridaorange]

Originally Posted by upstatedoc

Is it street legal? How do you get it to the gas station?

Originally Posted by upstatedoc

Is it street legal? How do you get it to the gas station?

I live in an area with lots of golf carts that aren't street legal and a neighborhood that is cool. I only ride on weekends and that gas station is very close to my house.

Scooters under a certain CC are ok in bike lane and my bike doesn't quite fit into that category but at slow speeds, due to to mini stature nobody knows how fast it is and I don't go out of my way to
drive in traffic - really just on weekends. I also have a headlight and blinker not pictured here for added safety, nobody seems to mind as long as I'm not riding around like a hooligan.