Why is that we cannot seal the stator area on the mini quads, when the stator on on my z is sealed. On my Yamoto that I had I did not see any fans for the stator. Did it have one? Or was it sealed?
It seems like I only here these problems on the minis. If we could seal them no more problems. If someone could enlighten me on this subject that would be great!

Thanks
Roman

 

.

Many 2 stroke minis are "fan cooled". Thus, they have a fan bolted on the face sidee of their flywheel. Behind the flywheel is the stator assembly. The flywheel face has holes and there's usually a 1/4" gap between the back of the flywheel and its engine case. Even if you could seal the holes on the front of the flywheel, water / crud would still get behind the flywheel. Some say the stator coils where meant to have air flow. Thus, keeping them cool(er). I'm not to sure about this.... To me, it's an engineering design problem. Many 2 stroke engines are also used on scooters. Folks don't run scooters under water. Thus, why change the design of the 2 stroke venting system "just to use it in a mini-quad"? In addition to this, there's a political push to eliminate all "new" 2 stroke engines in 2006+. Thus, any 2 stroke venting system R&D time & dollars would be "out the window.

From a white board visual, ALL mini-brands should have a sealed stator and CVT tranny area. Just like the old Polaris Trail Blazer 250 2 stroke unit. Sealed electronics, sealed tranny and it's a 2 stroke with factory Oil Injection system. Take this "same design" and down scale it to a mini-quad engine looks so easy. Then again, who said our mini-quad industry ever takes the easy way out. They probably make too much profits on repair parts.

This isn't an answer to your "how do I seal it??" question but might explain why "our mini-quad 2 stroke world isn't perfect" today.


Hope this helps...

.