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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
Porting, Crank repair, etc.
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[QUOTE="DieselTech, post: 1305914, member: 74999"] Hello all, These questions are presented mainly for someone knowledgable, like Rich or Eric, in the specific modification or repair. I am interested in learning how to do such things as cylinder/head porting, crank rebuilding, port-matching of pistons, etc. I'm considering attending some machinist courses at the local college - I think that would be a good start for the "basics" of machining (which I have no experience in). I'm also interested in custom fabrication/modification, be it frames, engines, etc. - I really have very little experience here as well, though I do all my own maintenance and repairs to my own vehicles, including my quads, MX bikes, truck, etc. I have done some engine work (i.e., I just installed a new head and cams on my son's KXF250, and I recently disassembled a Banshee motor due to a fragged crank bearing) and some other stuff like fork seals & oil. I'm a diesel mechanic by trade, so I have a pretty good mechanical background. Where can I get specific information or training on these types of things - specifically: porting, crank repair/rebuilding, and custom fabrication? Is this something that a person generally learns by just doing it (and experimenting & making mistakes)? What types of tooling is needed to do these things? I obviously don't have my own machine shop - and I don't think that I can afford to invest in high dollar equipment like that just to pursue a hobby. I'm not necessarily interested in doing this as a change in employment, more due to personal satisfaction (I like to do as much of the work to my stuff myself as I can, and I'm a naturally-curious type of person - I like to learn). Should I attempt to get a part time job working in a machine shop maybe, for the experience? What equipment can I reasonably afford to get for my shop at home, and what kind of work could I do? For example, the Banshee motor I tore apart needs the crank rebuilt. That's a pretty big job, IMO, but I'd love to attempt it. I'm not sure HOW to do it though, beyond the theory of it. Some things are obvious though, like pressing the crank apart to replace the bearings, but then there's other things like checking tolerances and possible machining, as well as truing the crank. Any advice would be appreciated. Thanks! [/QUOTE]
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Forums
MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
Porting, Crank repair, etc.
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