I have been reading about the 581 kit that Four-Stroke tech makes, [img]i/expressions/face-icon-small-happy.gif[/img] I would like to do the kit. But i was wondering what you guys would think? would it be unreliable? I can just imagine the power gains i could get with something like that Another thing is... do you think that engine kit would make the engine run really hot in the woods or while playing in the mud?? i mean, after all that is almost 200 cc's bigger! [img]i/expressions/face-icon-small-shocked.gif[/img]

 

come on guys, i know there are people reading this.[img]i/expressions/face-icon-small-blush.gif[/img]

 

i havent read anything yet on the 581 kit ,but one of my concerns is ; will the drivtrain and all the other parts gonna handle the more hp and torque?

 

I think the kit is only for the 500... Don't you have a 400?

 

Not too sure, but don't think the cylinder walls are big enough on a 400 to go to a 581.

But it sure would make for a fun ride. [img]i/expressions/face-icon-small-wink.gif[/img]

 

it says on their site that it is availible. but it also says the same size kit for the 500?

 

The crankcase is the same for the 400 and 500 so the bigger jug will fit the 400.