3.0 Liter Mercruiser 140 Rough Idle

JimS123

Fleet Admiral
Joined
Jul 27, 2007
Messages
7,952
Cold start is perfect and once the choke lets off it runs 100% perfect. Hot start later in the day after being off (a few minutes or an hour) and when restarting the idle is rough, no matter how long you let it warm up. Once you get it up past idle, and then slow down, its OK again.

Its not a choke problem (its off).

Any suggestions?
 

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
70,465
Re: 3.0 Liter Mercruiser 140 Rough Idle

Ayuh,.... Do you advance the throttle at restarts,..??
 
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