1990 75HP Smokes at idle

[Exjake]

My 75Hp Merc smokes a fog bank at idle at higher rpm its fine. It runs smooth at all ranges, what should I look for? The oil injection mark is on the line at idle.

 

[Merc805]

Re: 1990 75HP Smokes at idle

2 Stroke ?<br />They all smoke.. It's when they don't smoke is when there may be a problem.. No oil.

 

[Exjake]

Re: 1990 75HP Smokes at idle

Yes but this is mosquito control

 

[herveybay]

Re: 1990 75HP Smokes at idle

Don you could try checking that your thermostat is working ok.Im having the same problem with my 135 mariner and i have been told by many people that the mercs need to run pretty warm to help burn the oil properly.Ive allso started using merc quicksilver oil and it did help a lot.Cheers