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XR/CRF 50 parts on 70's

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When searching for parts for my xr70, I see that the parts for 50's are much more abundant and cheaper. How about a list of parts that fit both.

I am curious first about the exhaust.

how about the airbox or even a head?

if you know of some interchangeable parts, please list them, I have been unable to find a source for this info

50 parts that fit:

chain tensioners

chain slides

controls

skid plate (most)

crank shaft

engine timing cover

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I've got a 70 head on my 50/88 but the 50 heads have smaller valves. Everything with the engine is interchangable. 50 exhaust I think are shorter with diffrent mounting spots but not 100% on that. Do a search on here and you should come up with all the answers you need, I'm sure this topic has came up thousands of times by now

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all of my exhaust interchange...they have a longer elongated slot at the rear mounting and the can on my Jardine actually will extend on the pipe....you could always fab up a rear mount to suit

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my problem with the exhaust is that the frame on the 70 seems wider up top than the 50. the exhaust has a different bend on the 70 which swings it out from the frame.

I should say here that both of my 50's are clones.

Edited by surveywaters
addition

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