bicycle motor kits and rear wheel loosening

[heartlandcruisers]

so as many of you know of ym genesis 29er bike,she is gonna be my candidate for my motorized bicycle buildup.
i have chosen an 80 cc complete kit.
the issue i have been hearing of from both customers and from researching these,is the rear wheel guts becoming severely loose and the rear wheel wearing excessively.
does anyone know how to correct this issue? or will i just have to keep adjusting the rear wheel as necessary.
i was told a more heavy duty grease may work or at least slow it but i am wondering if anyone else has these motorized bicycle kits and could tell me how to remedy this issue or if it even is an issue.
also any advice would be great as this is my first motorized bike build.
thanks
Sean

 

[mikeeebikey]

What I found with that, and huffy nel lusso, the rear drive sprocket tightens down on the dust cover, driving it into the hub body. I found just leaving it off works!
Grease, all bearings, on wallybikes.
Use the clutch! To slow, first pull in the clutch!
Install a front brake!
Using a sprocket that clamps onto the hub is better, a jack shaft and forward freewheel is the way to go.

 

[mikeeebikey]

Oh, and for all motorized coaster brakes: I use a piece of 1/8" x 1/4" aluminum strip and make my own brake band. One that does not move or wiggle.