Standard yz250 rings on wiseco piston, and re-jetting for grab holes

[honda_power]

1.

bought a whole lot of yz parts, came with a spares kit minus the piston, be good to freshen it up with a new set of rings but has a wiseco in at the mo. question is can i run stock rings on the wiseco (its a twin ring)

2.

the main reason i bought these parts was for the airbox, so i could have a spare to chop up. it runs fine with the extra air, no bogging etc, but (correct me if im wrong) it will be running leaner (?) with the extra air? should i be swapping jets around even though it runs fine? (a whole lot of jets came with these parts as well :))

thanks

[barty5]

1.

bought a whole lot of yz parts, came with a spares kit minus the piston, be good to freshen it up with a new set of rings but has a wiseco in at the mo. question is can i run stock rings on the wiseco (its a twin ring)

2.

the main reason i bought these parts was for the airbox, so i could have a spare to chop up. it runs fine with the extra air, no bogging etc, but (correct me if im wrong) it will be running leaner (?) with the extra air? should i be swapping jets around even though it runs fine? (a whole lot of jets came with these parts as well :))

thanks


No you cant there will be differences for sure. thicker, thinner, different size pistion a,b,c

[honda_power]

thanks, didnt think so, wiseco dont have a,b,c pistons though

[Rupe]

thanks, didnt think so, wiseco dont have a,b,c pistons though

did he mean abc for stock piston/rings?

[honda_power]

yeah sorry must have been half asleep

any advice on the jetting? leave it/play around with it?