Discussion Starter · #1 ·
I am replacing the stock piston in my 700xx, due to the it putting a 1" horizontal gouge in the cylinder wall. Honda offers piston and rings they say is 0.25 oversized. Is that 0.25 inches? If so can you bore the stock cylinder that much and still be good? If my calculations are correct, that would bring the 686cc to 774cc. Please let me know.