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Discussion Starter · #1 ·
Hello alll I have a 1999 ZRT 800 that has had a set of 900 cyls and pistons put on it. A 900 kit if you will. All Cat parts.
My ZRT 800 has a longer stroke than the 900 t cat had so what do I now have for displacement??
I don't know the formula to figure it out. Any help appreciated.
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