Recent content by cojaro

I'd thought I'd share my find, maybe revive some lost hopes with it. Well I was searching eBay for an engine for my on-going minichopper project, and, to me, I hit go-kart gold (I'm planning to build a go-kart after I finish the minichopper). For only $46 and some cents, a 3-speed riding...

Holy crap. Now I never said it would be cheap, but I think I may have it! Ok, to simplify things and not confuse y'all, think of this: (sprocket = sprkt) engine sprkt ---(chain)---secondary sprkt (tensioner) third sprkt ---(chain)--- axle sprkt...

Would this be possible? I was thinking about go kart variations and trying to get more power, when I thought of putting a small engine (40-50cc) to drive one rear wheel, and another identical to drive the other rear wheel. Their throttle cables would connect to the same gas pedal (perhaps a dual...

I know robert's bike was made of 3/4" pipe, but i don't have access to a pipe bender, so tubing is my only way. My question is, would 1/2" (or 3/4") alum. tubing work, or would it not be strong enough? And if alum. tubing is too weak, is copper tubing any stronger?

I found some one bmikarts.com http://www.bmikarts.com/shop/?shop=1&cart=354452&cat=1&itemid=355&&thumbval=thumb http://www.bmikarts.com/shop/?shop=1&cart=354452&cat=1&itemid=344&&thumbval=thumb How do these work? I haven't been able to find anything that explains how it works.

What would be a safe RPM limit for a tecumseh engine? I'm looking at http://www.smallenginewarehouse.com/product.asp?PN=H30MB&desc=Tecumseh+Engine+3+HP+Horizontal+3+4+x2+5+16+Keyed+Shaft+Recoil+Start+setup+for+minibike which is the same as...

Well, I've found a place that sells a 49CC minibike engine for $100 + s/h. Will that be strong enough? here it is - http://www.giovannibikes.com/bikeparts.php

This guy builds Gas Turbines for go karts! He's the same one that built the gokart that raced the 360 Modena. He also put a lombardini mini turbocharger onto a go kart engine. awesome... http://www.turbokart.com/turbo_exciter.htm#update3

Why not a mini drag racer? The frame designs of today's drag racers are simple enough that one of us could make a miniature version with some tools and square tubing. Maybe a 15"-20" tire, with thin bicycle tires up front, and the engine in or nearly in the middle. I think I even vertical...

Well, last week I got my first parts in for my mini-chopper: 1. 4.5" brake assembly 2. 60t sprocket w/ incorporated 4.5" brake drum 3. 5" Tri-Star rims 4. Turf-saver tire (4" wide, 10.7" diameter) Think 10.7" is big enough for a mini chopper? I think the size is good, especially if I wanted...

Here's an idea. Someone should go for it. Build a go-kart. not too hard, eh? Here's the catch: Use a shopping cart as the frame. Know how people like to run and then jump and ride the shopping carts? Yeah, like that, except there's a seat popping out tyhe back. So you have the same view as if...

Well, I've narrowed my search to a 3Hp and 4hp Tecumseh engine. However, I noticed something that I don't fully understand: http://www.smallenginesuppliers.com/shop/agora.cgi?cart_id=4832715.9778*El0Cl6&p_id=00700&xm=on&ppinc=big It says it has a "manual throttle (No RV control)" What does...

A few things have been bothering me about the build of the bike, and I still can't figure them out. 1) How is the hub connected to the axle? 2) what is the function of a keyway? How is it used? I'm clueless why the axles have these. 3) Where are the bearings on your bike? and where do they go...