I have a 98blaster and recently blew the piston and had it bored so do the jets need to be changed and how do i go about doing this thanks

 

Changing the Main jet is easy. Just take off the float bowl, youll see a plastic piece in there which just pulls off. Pull straight down towards the bottom, then take a 1/4 inch nutdriver and take the jet out. Put a new one in and ride and be sure to recheck the plug..that easy..

 

thanks for the help