Oil leak - failed cylinder gasket.

[abobotek]

At around 4700 miles, I started noticing a small (1-2 drops/mile) oil leak.  I took the bike apart and found the cylinder gasket (between the cylinder and crankcase) pinched out of the joint.  

I have found a few other references to this happening on Kymcos, but it doesn't seem to be a common problem.

Question:  How should I fix this?  Possibilities:

* Loosen the cylinder and squirt in some 'form a gasket' liquid
* Pull the cylinder with the engine in the bike
* Remove the engine and replace the gasket on a bench


Also, should I pull the piston from the cylinder, or just try to loosen the cylinder and remove the wrist pin with the piston still in the cylinder?

Regards,

Alex

[zombie]

The easiest way in my opinion is to pull the engine. You can clean it all up, and work like a gentleman. You are always better off leaving the piston inside the jug, and removing the wrist pin unless you plan to change the rings.
I use Permatex #2, omc perfect seal, or Indianhead shellac. Use it to "glue" ONE side of the gasket in place. One side only. Never use that silicone RTV crap. It's garbage.

[zombie]

ps... Get a new exhaust gasket, and the "O" rings for the carb/intake. Head gasket/base gasket/valve cover gasket

[abobotek]

My S 200 is back on the road again, leak-free thanks to a new cylinder gasket and a few other new gaskets.  

One thing I should mention is that the oil strainer was full of pieces of the old failed gasket.  

[zombie]

Nice...