Added: 3 years ago
From: BigBlockMoparMan
Views: 3,058
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  • yes, I welded on a new plate and cut slotted holes to allow for chain adjustment.

  • did you have to do any mounting plate drilling for the larger motor to fit

  • Thats me!

  • I have to add that while 11 hp would make for a fun mini bike, it would most likely have a larger output shaft. Most clutches will not fit. You will need either a special clutch or, you will need to rig up an intermediate shaft (jack shaft) to adapt down to a size that you can find a clutch setup for. Not impossible, but will be a little more work.

    I wish you luck and if you get it going, be sure to get a video of it.

  • I got my 8 hp at a tractor sales dealer.

    I would like to change the gearing a little but It would not be safe to ride if it went much faster. 42 mph is pretty good.

  • hey i have a rotiller at my house and its like 11hp i wanna build a mini bike and ride it around just for fun plus the motor thats on the tiller is too power full so i bought a 3.0hp motor for it instead and i dont wanna junk the 11hp so i was wondering wear you got the parts to build ur mini bike?

  • I traded one of my old tractors for the minibike which had a broken engine. I bought a brand new engine at a Tractor dealer. I reused most of the parts from the minibike. I just had to weld a new engine mount plate on which I made from scrap and weld relocated foot pegs on because the 8hp covered the old footpegs and you could not get your feet on them. Read the previous posts please.

  • oh yeahh i seen that yeah i wanna build my own mini bike i have like dirtbikes and stuff but uh when my dirtbikes are broken or in the shop its always good to have something extra just to have fun on

  • I have the same bike (3.5hp), could you tell me where to get a new 8 hp engine? And I would change out that 72 tooth sprocket for a 50 tooth, it goes 8 mph faster

  • Depends on how much you can beg borrow and steal. I Bought the engine new for my boys Go cart for about 350 bucks. Then I traded an old tractor for the minibike that had a blown engine but good clutch. The bike was probably worth 100 to 200 bucks as was. The Comet clutch, new, goes about 200, so I got a good deal. Only other things I bought was new throttle cable, some scrap metal pieces and chain. Probably got about 500 or so into it and 10 hrs of fab time.

  • how much do you think that it would cost to build a mini bike similar to yours?

  • just buy it. his isnt home made. and like 200 bucks off of craigslist

  • get a cheap frame off craigslist then get a motor off craigslist then get everything not on craigslist on ebay.

  • Thanks man!

  • sweet bike tyler!

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