View Full Version : piston, bore?
81 clark racing
06-25-2008, 06:23 PM
i am thinking about putting a 11.1 comp piston im my 400. it runs awesome now great compression and all so can i just put the 11.1 piston in or do i have to bore it out and redo jetting etc? also do i have to upgrade anything from going from stock comp to 11.1? thanxs steve
Honda#4
06-25-2008, 08:01 PM
Find a std bore 11:1 comp piston I recommend JE, umm jetting id maybe up the main or just tweak the A/f screw that may be good but just go out a ride it and see what it needs.
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