installing 4mm stroke, 5mm longer rod crank

[350guy]

im installing a 4mm stroke, 5mm longer rod crank, i have dune porting for stock stroke, does anything else have to be done?

 

thanks for any help

350guy

[Bansh-eman]

if your running a cool head the domes have to be cut so the pistons dont hit them.. unless you plan on running the spacer at the bottom, but most people have the domes cut instead. also you have a option of 795 pistons if you stay stock bore or moving to blaster pistons... oh and your going to want some new carbs 34-35 mm your 26's are going to starve that thing bad. check your clutch plates make sure they are good if not replace them the new power will shread those things if not. if your not riding in mud or water rip the air box off and run pods. also look at heavy duty springs for the clutch to hold better. tons of other thing you can add to wake that thing up

[Polish]

if your running a cool head the domes have to be cut so the pistons dont hit them.. unless you plan on running the spacer at the bottom, but most people have the domes cut instead. also you have a option of 795 pistons if you stay stock bore or moving to blaster pistons... oh and your going to want some new carbs 34-35 mm your 26's are going to starve that thing bad. check your clutch plates make sure they are good if not replace them the new power will shread those things if not. if your not riding in mud or water rip the air box off and run pods. also look at heavy duty springs for the clutch to hold better. tons of other thing you can add to wake that thing up

 

 

 

well said .........also get it match ported to match the 4mm stroke

[BigRed350x]

Check my sig for some of the "other things" he was talking about above. he he

 

Have fun with your new 4mil.