1998-2001 Honda Fourtrax Foreman TRX450S, TRX450ES Factory Service Manual, Page 135Get this manual
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CYLINDER HEADCYLINDERPISTON Reface tneseaj' Use 45-deg ree cutter to remove any roughness or curter whenever valve guide is
Use .a 32'-degree cutter to remov'e the top 14 of he existing v