OutdoorKing Repair Forum Forums Repairs and Maintenance Questions on Engines Questions on Other Engines Wesco 16" Mower Oil Change.

Could be pcv valve under flywheel

I would start with valves.

Rev it hard off idle and see how the smoke is

What oil did you put in MF - I had an issue with one batch of gulf western. Would smoke after a few mows (not the wesco). Changed it out with Nulon and no problem. Yet other mowers are fine on it.

Is the oil sludgy again