Coolster 150 loose final drive shaft
 

Picked up a Coolster 3150dx2 for cheap because the final drive shaft was loose and leaking oil.
http://www.flickr.com/photos/1891901.../shares/FU6x74

http://www.flickr.com/photos/1891901.../shares/11k7P5

Something is obviously missing here. Either a bearing or the very least an oil seal. By my measurements there’s 5mm of slop between the the shaft and the case. The Coolster manual is almost as useless as the parts diagrams. Not to mention the sprocket Coolster says is for this looks nothing like it. The gy6 diagram doesn’t show anything in that area. If I knew what it was supposed to look like I could probably figure out a work around

Also for anyone else the 428 chain they say is for this is actually a 530 84. Still hoping someone out there has seen this set up. The grooves almost make it look like it should ride on ball bearings but that would make changing the sprocket ridiculous