building

I would like to put my stock 2.8 HP DB engine on the operating table to see if I can make it perform tons better. I know about the engine swaps, but I don't want to take the easy way out (not just yet). I am mechanically inclined and able to do most work (except for machine work) myself. This...

I posted about 2 weeks ago talking about a recumbent motorcycle and I've decided to give it a go but I'm going to make it fool proof if I decide that I dont like it as a 2 wheeler. Interchangeable wheel styles. Heres a pic of what I have right now, but just picture a second tower in the front...

i have a 5hp briggs (flathead) that i'm hopeing to build up over winter, i don't want to make anything to crazy. i would like to get a rod, cam, valve train, and maybe do some head work. what would be a good all around cam, are there any that could stock valves? if not what valves, spings...

hi everybody my name is ryan and im new to this site. i just got in to building mini bikes and working with small engines. so far ive built one mini made from scrap pieces of metal, a broken bikes, and a 3 hp briggs flattie i overhauled, it is probably one of the ghettoest minis ever but it is...

A local kid at the racing spot last weekend stopped me and asked if I can fix his motor for him. I then said, OK what's wrong with it? He said he doesn't know yet, but it won't start up. So I told him I would take his minibike home and take a look at it. I took a couple picture of the problem...

hello all here are some pix of my first minibike project. I picked it up of craigslist for $100. needs some work but i feel i did rather well. the po said its a trail jet and threw in the fuel tank and seat from some other bike. I had to fab up some mounts for the tank and have to figure out...

I been looking at this tubing roller that HF has but would like to know if anyone has any experience good or bad with one?... If it works as good as the pic shows it would be great for building frames or new forks for bikes that have bent ones.. Any info will be appreciated.. Harbor...

Doodle Bug build YouTube - Putting the Doodle Bug back together w Diamond Foxxx

hey everyone im new on here but heres my rupp build i got this from a friend for $20 now i have a 6.5 Honda clone engine for it whats the best way to sup up this engine

was wondering why everyone encluding me,are spending big money thinking about or doing big upgrades to the clone,when it is concidered a throw away engine. Way do we not just buy a stock Briggs animal for $500.00 or so new, and build from there,with a quality engine??? Anyone have any...

Hello, first post here. I bought my nephew a DoodleBug for Christmas. Seeing how much fun he is having on it, I am itching to build a larger version for myself! I have been searching and what I'd like to build is a large fat tire bike like the Manco Big Cat. I have all the tools...

I am starting with a few minor bolt on parts.....Better air filter and a straight 2 stage header. I am using stock carb. With these two items do you think I will need a bigger jet, if so what size? Also if I was to add the 1.2 Ratio Rocker Arms and 18 pound springs how much more hp would you...

Does anyone have any plans or picture that I may look at. I have an idea to build a side car for my mini so I could take my girls for a ride. Just looking for a winter project. Any ideas or picture would be helpful. Thanks

Thats....... Deer Assault VehiclE.:biggrin: Stock doodlebug, with a 6.5 clone. It will have a head light run off of a 12 volt battery. I will have to recharge the battery when it dies, but that is no big whoop. Oh to have a motor with a lighting coil............ Of course a deer...

i wanting to buy a frame from bmi....im just wondering how much will it take to get 1 with everything ready to go just add tires....i wanting to put burris racing slicks on it instead of knobbies.... i got a extra kart racing motor im gonna put on it to have fun lmk