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Z40 race cam in YX140...Any good???

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Noticed a few pit bike parts shops are selling a Z40 race cam to suit the YX140, it costs $100 and comes with stiffer valve springs and a ''racing'' cam gear. Has anyone tried this cam and if so is it worth the money/time/effort putting one in or will it just prematurely smash the crap out of the valves for little or no gain?. Its claimed to give you 2hp or in other words bump up the ponies from 12-14, im just curious as to what performance upgrades i might want to get for my bike in the future and the cam sounds like it might be a good start.

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Sure we sell them too

tbwo300 race head cams and z40 cams fit yx140 and offer a good boost

the only reason you need a different cam sprocket is due to the bolt pattern

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Ok nice to know i will order one i think, thanks for the reply. Is the big valve head the race head you're referring to or is the race head a different head all together

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