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05-29-2012, 02:53 PM | #1 |
Join Date: May 2012
Posts: 5
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Baja Dirt Runner 125
Im fixing one of these for a friend and i was wondering if honda sprockets and chain would fit? any of the baja parts dealers want an arm and a leg around here.
I was also wondering what these bikes used for swingarm bearings? |
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05-30-2012, 09:50 AM | #2 |
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
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Welcome!
A little research will be needed to determine which srpockets will fit. IIRC, the 125 Dirt Runner uses a vertical Honda clone engine, so that much will be easy. For the rear sprocket, it's a good idea to remove it and measure the bolt hole diameter, the center hole diameter, the bolt circle diameter and count the number of bolt holes. With that info, you can find a sprocket on the www.jtsprockets.com site, or one of us would be happy to help you if you're unsuccessful. There will be a match to that sprocket; it's just a matter of finding it. The swingarm probably uses bushings comprised of an inner and outer steel sleeve with terrible rubber in between. I've been successful in taking one to the local motorcycle shop and matching them up with Honda or Yamaha pieces. The alternative is to have some made from UHMW plastic, but that requires a lathe.
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Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer |
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03-31-2022, 01:58 PM | #3 | |
Join Date: Mar 2022
Posts: 8
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Baja Dirt runner sprockets
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This was super helpful i never knew about WWW.jtsprockets.com i still don't know how to measure the stuff well, and how do i shop for a dampner |
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06-16-2012, 04:53 PM | #4 |
Join Date: May 2012
Posts: 5
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Thanks for the reply, ive found the sprockets and chain for it.Im so glad this thing isnt mine, id be after sellin it long ago.The engines are built well but the rest of the bike is junk, and the cheapest ive seen one go for was $300 and it was beat and missing pieces, around here its better to buy a used jap bike.
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1986 Kawasaki Bayou 300 2x4 |
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06-17-2012, 04:36 PM | #5 |
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
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It's almost always better to buy a used Japanese bike, if you can afford one. That's the beauty and the dichotomy of China bikes; they're cheap, and they're cheap.
That made sense in my head. Seriously, if you take the time to sort out the details and enjoy them for what they are, China bikes can bring many smiles.
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Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer |
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06-17-2012, 05:41 PM | #6 | |
Join Date: May 2012
Posts: 5
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ATM it needs, chain and sprockets, swingarm bushings, back brake pads and bolts (they fell out!),the bearing in the sprocket assembly fell out yesterday. In the future it will need rings as its smoking from the crankcase vent pretty good. I wont bother tryin to convince the guy to get a better bike, it wont happen.I dont mind working on it, and im getting pretty quick now lol.
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1986 Kawasaki Bayou 300 2x4 |
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03-31-2022, 01:54 PM | #7 | |
Join Date: Mar 2022
Posts: 8
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I have 3 baja dirt runners
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this was so funny to read lol, but let me tell you something, these bikes are pretty easy to work on if you have access to the parts. Baja went out of business a few years ago, so now you need a caliper tool to measure diameters and you better be ready to count sprockets. |
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