'94 25hp merc smokes

[bktomlin]

Hello,
I just purchased a used 1994 25hp merc and had it checked out, the mechanincs saying it was fine. I got it home hooked up water supply and started it up and it is smoking pretty bad. Is this normal? I know it is the correct mixture, but maybe its just old gas? How much are they supposed to smoke if any?

Brian

 

[Chris1956]

Re: '94 25hp merc smokes

Brian, It could have residual oil from winterizing. You really need to run it a bit to clean it out. It should leave a puff of blue smoke when you hit the throttle, and have a faint trail of smoke at cruising speed.

 

[ifixf18s]

Re: '94 25hp merc smokes

I have a 97 mercury tracker motor. I seen where you said you know the fuel oit mixture is right, but you didnt mention what that was. My manual says 25:1 for the break in period (the first tank of fuel) and after that i should go with 50:1.

 

[mthieme]

Re: '94 25hp merc smokes

Assuming it's broken in by now 50:1 is correct.

 

[bktomlin]

Re: '94 25hp merc smokes

The mixture I am using is 50:1. I will try some new gas. Thanks