Hi folks, im new to the formum. picked up a 2001 grizzly 600 last week. less than 700 miles on the clock. looks to have been rode a little rough. smokes very bad. thought it would need a new top end. after pullng the cylinder and piston i see the 1.0 stamp on top of the piston. damn already bored. i measured up the piston at 95.88 then the cylinder at 96.0. according to the manuel that is twice the piston to cylinder wall clearance. so something is going to give. get a new cylinder which would allow me to go back to standard bore with a new piston or buy new piston and bore to 2.0. has anyone gone that far on their cylinder bore? i presume its ok or there wouldnt be any offerings for pistons for 97.0 bore. piston is in good shape and is a yamaha 1.0 piston. i have a few more questions for later

Hi folks, im new to the formum. picked up a 2001 grizzly 600 last week. less than 700 miles on the clock. looks to have been rode a little rough. smokes very bad. thought it would need a new top end. after pullng the cylinder and piston i see the 1.0 stamp on top of the piston. damn already bored. i measured up the piston at 95.88 then the cylinder at 96.0. according to the manuel that is twice the piston to cylinder wall clearance. so something is going to give. get a new cylinder which would allow me to go back to standard bore with a new piston or buy new piston and bore to 2.0. has anyone gone that far on their cylinder bore? i presume its ok or there wouldnt be any offerings for pistons for 97.0 bore. piston is in good shape and is a yamaha 1.0 piston. i have a few more questions for later