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Discussion Starter · #1 ·
My buddy has his YFZ and he is trying to make it a little faster. It has a +3mm stroker crank and DG exhaust. Not the best Exhaust but he already has it. I know he needs a piston as it has a ton of hours on it he is just trying to keep up a little better and realized that his YFZ needs some freshing up after this weekend. I got him talked into a Piston for right now. He don't have a big budget to work with. Can you bore YFZ cylinders or are they plated.
 

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Discussion Starter · #4 ·
We did the cam mod back when he first got it, Still need to do the zip tie mod but now that I know he can't bore the cylinder I will have him start saving some more $$$:lol: Are the big bores worth it? If you have to buy a new cylinder anyway it seems like it wouldn't be a bad way to go.
 

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After I got rejetted for my mods, it ran a good deal better...I don't have a low end bog (at least nothing perceptible) and I didn't do the zip tie thing. I asked the guy that helped me with it and he said he didn't bother cause it didn't make a difference once you sort out your jetting (at least down here).
 

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12.5 piston, cam mod, used full exhaust (Sparks, DASA), FCI, re jet.

That would run you about $600 and you would have a fresh, strong build. That +3 crank will give her an extra ooomff too!
 
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