[Genog]

I have a 2002 Mercury 90HP (90ELPTO) When the weather is cool the motor seems to have a "miss", it runs rough. When the weather is warm, around 70 degrees or so, it runs smooth. I think it may have something to do with the choke. What should I look for or try adjusting?Thanks for any help.

[Oldsaltydog]

Have you tried bumping the key (enrichment solenoid) once in a while as it warms up? Have you checked the idle gas-air mixture adjustment?