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guillev

I need your opinion - YZ time

4 posts in this topic

Hello, i need your opinion about yz time in my wr 400 '00

Why I must to setup my bike with that time?

gUiLLe

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You gain in the midrange and top end and may lose a little off the bottom.

You don't have to do anything you don't want to. :)

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'99 WZ with all YZ mods, de-octopused, FMF PowerBomb header, Stroker SX-1 silencer, SS front brake line, forked over by Pro-Action , OEM YZ tank, IMS YZ seat, carb mods by Jim Dean and Sir "Taffy" from Jolly Old England, AMA, NESC.

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If you want your bike to have instant front wheel pulling power then switch to YZ timing. I have made the switch on my 400 and love the fact that I can lift the tire anytime needed. It may hurt bottom end power a little, but this engine was designed to run in the upper rev's anyway.

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98 WR400 "Strokerized"

97 EXC400

94 RMX250

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I changed the timing on my wr99 road plated and didn't see a realy noticeable difference in loosing bottom torque. However, mid where improved. Go for it, the hardest thing is not the timing change but the rejetting. It will cost you a couple of hour in time and may be a main jet and a needle, no more.

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