Ok, I have a yamaha blaster motor, Big bore with +3mm stroker crank, lighten flywheel, port and polish ,35mm keihin carb, im just saving up my money to buy a lrd exhaust and v3 reeds it hasnt been started yet. I started looking at motor swaps and i ran across the yz465/490 conversion. Now my question is how well would the yz465/490 run compared to my motor? And what kind of power are we talking ? I put together a Bigbore/stroker blaster motor.... I ride with my buddies ones got a 400 ex modified with cams and big bore...not sure on his total size and i have another one with a suziki ltz 400 not sure but he's got it bumped up to 440cc's and im i'd like to put together a 490 and suprise the hell out of these guys with it or should i just run that blaster motor.
David
David