i wonder how the clutch would hold up to all that extra hp, i've heard of people going to manual clutch kits on wolverine with when alot of motor mods were added, i wouldn't like that, i perfer not to have that hassle.

 

With these mods done to the engine, wouldn't you need some type of new cooling system? Most 400cc machines are fan cooled.

 

at the very least i think as larger oil cooler would be needed, maybe the cooler and fan off a 2000 bigbear would be nice.