Are the 2003 Mercury 60hp 3cyl Bigfoot known to shake?

J

jeep187

Petty Officer 3rd Class
Joined
Oct 2, 2008
Messages
89
I have a 2003 Mercury 60hp 3cyl Bigfoot.

When i have the motor raised in shallow water or going slow the motor shakes.

It is real noticable when I have the hose hooked to the earmuffs flushing out the motor.

Is this normal or should it be fixed?

Thanks in advance
 
H

hamit59

Petty Officer 2nd Class
Joined
Jul 25, 2008
Messages
149
Re: Are the 2003 Mercury 60hp 3cyl Bigfoot known to shake?

what motor is it 4 stroke 2 stroke. What's the plugs look like ? check for spark and all cylinders. check compression. It should not shake much.
Post back with what you find .
 
Dunaruna

Dunaruna

Admiral
Joined
May 2, 2003
Messages
6,027
Re: Are the 2003 Mercury 60hp 3cyl Bigfoot known to shake?

It's a 2 stroke oil injected. In 2003, all 4 strokes were 4 cyl EFI.

Probably a carb issue. When was the last time they were cleaned/rebuilt?
 
J

jeep187

Petty Officer 3rd Class
Joined
Oct 2, 2008
Messages
89
Re: Are the 2003 Mercury 60hp 3cyl Bigfoot known to shake?

They were just cleaned and rebuilt about a month ago by a mercury dealer. Yes is is a 2 stroke oil injected.
 
H

hamit59

Petty Officer 2nd Class
Joined
Jul 25, 2008
Messages
149
Re: Are the 2003 Mercury 60hp 3cyl Bigfoot known to shake?

we need the compression numbers
what did the spark test tell spark jumping 7/16 on all cylinders?
If that's all good then I would say you still have carb issues.
 
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