pulse valve

[cterrebonne]

I have heard of the check valve for the air side of an optimax be called a pulse valve. Not anything called that on a carbed merc. Sounds like you might need to clean the carbs and change the plugs.

[phatdaddy]

so it ran good all summer, but when you winterized, the problem began?
what does winterizing consist of?
is that motor oil injected or premix?