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crf250R head ,cam and carb on X

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does this waken up the X or does it make it less reliable, and by that i mean more top end jobs adjusting vlaves more often, I had thought of this before when i rode the X after i had rode an R setup for endure before the X was released,

I am sure someone else has done this could u give me some info on it?

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get your head setup properly and you will be good to go.

you will lose low end torque, but will gain top end hp.

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changed my wife's 250x to a 250r head, with a new piston, falicon rod and stage 1 hot cam. Big difference. I did not change the carb. She has A dr. d exhaust and she ended up woth a lot more top end and I went to a 50 tooth rear sprocket, because she kept looking for another gear. The bike has a lot of low end anyways, so a little loss on torque was woth it. She does not race but has been riding for 25 years and is an A rider.

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