More exhaust gas on port vs starboard engine

[kitebuz]

ok - I am getting all my questions out today.

Engines are '89 Evinrude V4 120's (twins), both standard rotation (for those that haven't seen the other 3 threads I started today).

At idle, the port engine is throwing alot more exhaust gas than the strbd engine. It also tends to idle up to @ 2k rpm when initially put in neutral, then settles back down. It is also harder to shift from forward to neutral.

Should I be concerned about the increased exhaust?

Could it be related to the idle setting being slightly higher than the other engine? Also, what is the basic proceedure for adjusting idle?

 

[Walker]

Re: More exhaust gas on port vs starboard engine

The correct way to set the idle is through a link&sync procedure. It is detailed in the shop manual for your motor. I can't give you the procedures because they are different for differnet motors and your 120's are a little more involved that on the crossflow V4's.
I do believe you exhaust and shifting problems may be caused by you idle settings.

 

[kitebuz]

Re: More exhaust gas on port vs starboard engine

I have the manual, and think you are right.

Is there an easy way to determine the accuracy of the tachs b4 I go fine tuning?