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Old 07-01-2007, 06:32 PM   #1 (permalink)
enigma82
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Join Date: Jul 2007
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Modifying an old YZ250 for trials?

I have a 1987 YZ250 that's sitting in my garage stripped, not in working order, and not doing anything. I want to give trials a go, so I was thinking in the process of fixing up this YZ I might turn it into a bit of a trials bike, just to have a go at it before I shell out for a new or newer trials bike.

I'm wondering what would be necessary to make it a fun trials bike? What should I do to the shocks? Trials tyres of course. I guess I could shave some foam off the seat? What size sprockets would be appropriate? Anything I should do to the carby for better throttle response? Or would a YZ engine be pretty good in that area already? I'm not sure cos I haven't ridden the thing in years. My biggest concerns are the clutch and the exhaust system. How can I make an old, stiff clutch soft again? And the exhaust system will get in the way - I think it would be in risk of being crushed on some obstacles. Anything I can do about that?

Are there any major differences between the YZ250 and a trials bike that i'm not considering? Keep in mind i'm not aiming to do serious competitions on the end result. Just want to use it to get a taste of trials.

Thanks for any advice.

Last edited by enigma82; 07-01-2007 at 06:39 PM.
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