Have a Coolster 110cc 3050D and it is leaking oil out of the Magneto case (if my term of this is correct). When I pull of the housing, it appears to be leaking right from the bottom. Not by the axle of sprocket, but at the bottom of the seal.

I am looking for input if people have had any similar issues and whether it was a big problem to replace a seal.

I will follow-up with some images on a 2nd post.

 

Here is a follow-up post with hopefully attached images. I placed a red arrow on where I believe it is leaking oil





This is the case removed. I think they call this the magneto case?





This is a picture of the housing removed. The suspect oil leak is at the very bottom behind this steel wheel.





This is underneath and behind the steel wheel on from the 2nd picture. I believe this is where the oil is leaking out of.

 

Here are the images. This first two should be rotated right 90 degrees to be in the same orientation as the third picture. The red arrow on the 3rd pic is pointing to where I am suspect is the place where the oil is leaking out of. It is underneath and behind the steel wheel shown in the other image. Is this something that can be easily fixed?

 

Did anyone ever reply? I have same issue. I'm guessing a seal, the crankshaft seal I think. But I'm new to this.

 

I ended up contacting coolster in CA directly and they appeared to know exactly what was wrong with it and what seals I would need to order. The seals were about $20 and they are not something they have on their website, but if you call them and explain the location of the leak, they appeared to know what you need to fix. I was not willing to go through the 2-3 hour process of fixing especially since you need to make sure the timing is not screwed up once you start tearing it apart so I just ended up selling the ATV.

 

Thanks for reply. Mine is a generic "Buyang 110". I'd be ok with tearing into it, but hoping to find someone who has done it once. I think those engines are all pretty standard, so I might be able to pull the seal, and read a #. We'll see.