homemade

So I'm replacing the 66cc chinagirl on my bike with a 79cc predator because I got tired of the chinagirl breaking down every 3 weeks. Some people said they want to follow this build so I'm making a new thread in the proper location on it. Here's the pics so far, as you can see, the engine barely...

Just to check, you want an expansion chamber to be around the same volume as the cylinder/head/intake right? If you have an expansion chamber larger than said volume does it lesson the effectiveness of the chamber? Or is this not a concern? I only ask because I stumbled upon an old thread...

So I have seen these Honda motors for go karts and minibikes and started thinking about mounting them on a bicycle. Has anyone done this before and what are the results? speed, mpg, power, problems. The motor I'm looking at is a Honda GXH 50 and it has 2.1 HP. Any help or info would help...

http://www.youtube.com/watch?v=lC4jAuhYID4&feature=plcp http://www.youtube.com/watch?v=TO1pvDn5Ga0&feature=plcp http://www.youtube.com/watch?v=WTod7AxL07E&feature=plcp http://www.youtube.com/watch?v=1augl2kBHUc&feature=plcp http://www.youtube.com/watch?v=gtnNOomASqM&feature=plcp...

Hello all, I completed my first build about a year ago. Since then I've put over 2000 miles on it and she's running strong. I started with a kit and and that motor crapped out on me pretty soon (about 300 miles or so, maybe less). So I went to the drawing board. I purchased a 79cc greyhound...

hello everyone! i am somewhat of a noob when it comes to board tracks but i love them so i decided to build one from the ground up.....hopefully. i searched google sketchup 3d warehouse under motorcycles and found a cool looking board track racer design. i have made all of the mesurements and im...

I made a very bright headlight battery operated for under $10 anyone can make this headlight easy http://www.youtube.com/watch?v=LFFAmHlE1G0

does anyone know how to make a rear kickstand thats can handle a good amount of weight and doesnt cost alot

So I've been working on a set of lights for my bike. I got tired of the walmat crap I was using, it didnt cut it! Here's what i did, The supplies: 2-6v 4.5amph SLA batteries(from Academy Sports) wired in series(10$ each) 1-12v 20watt halogen lamp (RadioShack) part #272-0006 (7$) 1-...

home made mini bike with 66cc china bike motor not suitable for kids, very powerfull quiet erish muffler. gio pocket bike frame and front wheel with forks, donated from wreak. rear wheel maybe from honda ct70? the seat is a surplus head rest off exercise equipment. forks extended, frame chopped...

i finally made it thru the terribly slow break in period on my rig and i got 42.4mph with a stock 44t setup on 700c tires. i cant wait to add all the goodies i can starting of course with my homemade boost and no2 kits and the first reasonably priced 32-34t sprocket i can get my hands on. if...