I still don’t know how I can get max performance from this yz top end when the marks are so far off. The dome on the yz piston is taller so it puts the marks way apart at tdc
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85 350x
83 200x-sold
×2 85 200x-sold
06 kx250f-sold
86 tecate-sold
86 tri z powervalved
85 BIG red
18 rmz250
87 lt80
19 ttr110