FT9.9 oil separator drips oil in carburetor

[dlynberg]

I have a 2001 FT9.9 long shaft. There is excess oil dripping out of the mouth of the carburetor every time I use it. I have checked the one way valves in the separator, and they seem OK. Is there a way to stop this oil from dripping out into the engine case?

[rodbolt17]

its called blowby gasses.
do a leak down test.
try a good decarb.

[dlynberg]

Roger that. I know #2 has a lower compression reading than #1 from a test I did a few years back. I had the head off last week and poured water into each depression in the head with the valves set to tdc. #1 held the water fine, but #2 drained to empty in about 2 minutes into both the intake side and the exhaust side. The valves may be carboned up. I don't think they are burned, but I will need to pull them to see for sure. Boat work never ends
Thanks.

[dlynberg]

Is the water mist onto the carburetor intake method of Decarbonizing likely to clean carbon from the valves, or is it necessary to lap the valves?

[rodbolt17]

if I had the head off I would at least lap the valves.