How do i make a mini motorcycle from scrap : LUSENET : Junkyard Wars : One Thread

How can i make a motorcycle out of scrap

-- Nitul Mulji (, November 21, 2002


well one way is to see if you can buy some stuf to make it another is to make it like with a mopad and a bycycle im only 11 so there is my idea

-- john aland ted (, December 12, 2002.

hi i also really want to build a motorbike from scratch so if you have any good ideas would you please tell me cheers!

-- simon (, March 21, 2003.

stick a chain saw engine on a bike then put a sprocket on it and attach with a chain to the bike sprocket

-- Tom Hill (, March 25, 2003.

Dearsir, we have reqveir a lott engin motorcycle. YAMAHA=YB100CC HONDA=CG125-70-50CC SUZUKI=A100X KAWASAKI=GTO110-125CC THANK YOU VEARY MACH. M IMRAN BAIG

-- m imran baig (, April 17, 2003.

You guys need to check out this web site: Tzi's scooter world! He shows you how to build motorized scooters from old parts and motorized bikes too with weed eater or chainsaw engines. Just do a web search by entering Tzi's scooter world.

-- C. Young (, April 17, 2003.

just do a no clutch friction drive system. my bike works great!

-- david (, May 11, 2003.

hey does any body kno where there is a good website that gives directions on how to build a chainsaw bike?! soif u do plz tell me thx

-- frank (, June 28, 2003.

this is what you do.... take a chain saw then get a banana seat and take all the foam out of it then mount the banana seat on the bike over the back tire then change the sproket on the chainsaw to a small one then make chains go from the chain saw to the front were your feet would get then to the back wheels then your done

-- andre b (, September 22, 2003.

i have just built a minibike from scratch and it cost only 1100kr or 80 The motor is a 70cc 2 stroke boat motor, wheels are cheep trolley wheels and the frame is just tubular metal welded with a non gas welder ( not so good ). Top speed is 50kmh and the bike is direct drive using moped chain and sprokets gearing is 10 48. total size is 72cm long and 45 cm high. exhaust is made from some old steel tubing cut and welded into shape and the petrol tank is from a pressure washer hope this helps

e-mail me for pictures and further info


-- andrew purdy (, October 18, 2003.

does anyone know how to attatch a weed eater to the back tire on a 1 gear bike? i need it to be a friction dirive system. and can you please inform me if i need to weld anything. I also need info on how to take apart the weed eater properly. thanks for all your help and thank you even more if u have an answer

-- kurt nazry (, November 17, 2003.

can u guys please post the answers on the site because my ims not working thanks again!

-- kurt nazry (, November 17, 2003.

I've been a tinker/backyard project/steelfitter in younger years. Don't be afraid to think outside the box.An easy way to power bikes or even boats,ice boats,airplanes,skates,karts,blimps,(shall I go on?)is simply AIR POWER !!! Think about an easy way to mount a prop engine,the biggest challenge is to include the protection around the prop,be it a cage or nozzle. If someone could develop this idea,even from the giant model planes currently available, I believe it would really catch on.

-- conrad swindell (, December 09, 2003.

You cannot connect an engine to the original bike gears. Bike gears are reversed so your engine would be pushing the bike backwards. I have built many mountain bikes with weed eater engines and they were sucessfull. Mount a weed eater engine on the "V" of the frame. attack a gear on the engine driveshaft. Tear off all the back tire gears and put one gear on the back tire(MUST TAKE OUT BALLBEARINGS ON READ AXEL). Connect a chain to both gears and do all the other minor shit.

-- Big D (, January 12, 2004.

How do you keep the bike from taking off when you start the engine? Do you need to use a clutch or something like that? If you do, how would you install it to a weedeater engine?

-- Christopher Finley (, January 19, 2004.

Sh!t. How many times are people going to ask questions like this before they get the message. Ok, **BE SPECIFIC** Here's a good process to get you some answers for YOURSELF! *What do you have material wise *What tools do you have *What knowledge do you have *Where are the problems

At least make a start. Don't come on here wanting to know "How can i make a motorcycle out of scrap". THe answer is, make it, then it will be made. Just do it. What scrap? What tools do you have? What is the real problem? Everyone has a different situation. We could just post a link to some plans, and then you find you don't have the parts, and you're back to square one. Actually use your head, don't realy on everything being given to you. Make your mini bike, and when you hit a real problem, then come on here and ask a specific question. good day

-- Nitul Mulji (, January 21, 2004.

Get a chainsaw and a small spocket that can fit around the chainsaw clutch. Then stand to mount to the frront of the bike. Make sure that when you mount the engine you make perfect. Take the back wheel of a bike and weld a bigger spocket to the bottom about 6 in's. Make sure that the spocket teeth have the ratio. You need to have another back wheel to put on the back. To help get it going. If do everything perfect it should work. I'm in the process of make me one right now.

-- Jacob Joe Lee (, February 07, 2004.

Answer to that weedwacker engine friction system i have done this get a bycycle peg the kind you stand on mine screwed reight on after i took off the clutch.

-- Patrick Smith (, February 27, 2004.

first make a frame out of metel tubing or use a bike. get a chainsaw and mount it to the v of your bike or homade frame. weld a sprocket to the chainsaw and connect the chain. you might want to put a comfortable seat if it has no shocks on the bike a gel seat because if youre like me you like to ride alot you get a sore ass, really sore. well have fun!!!!!

-- kayla (, June 28, 2004.

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