ugh.. 2017 ec300 coolant in the oil and oil in the crankcase..

[slodrew]

I recently bought this bike with a little over 50 hours on it and it runs great but somehow coolant is getting into the gearbox and a small amount of transmission oil found it's way into the crankcase.. should I pull the engine and split the cases? Can I reseal the cases without tearing everything apart? Any advice would be greatly appreciated..

 

[Gasser Nate]

It may be transmission oil in the crankcase but it is probably residual two stroke oil. You might just have a leaking water pump seal or right hand inner crank gasket leak. Check there first.

 

[gasgasman]

+1

Water pump seals can be changed without pulling the engine.

 

[slodrew]

that makes sense.. the red color threw me off but I'm running Amsoil Dominator so the red should be expected.. thanks!

 

[gasgasman]

This workshop manual will apply to your bike.

https://www.dropbox.com/s/i93vw77r9kuszxs/gasgas%20workshop%20manual.pdf?dl=0

 

[rodent]

This workshop manual will apply to your bike.

You can download manuals for each model back to 2002 on the GasGas.com homepage.