2006 Evinrude 150 di 4000rpm only?

VHULL

Recruit
Joined
May 7, 2007
Messages
5
Hey Guys! Last year I repowered with twin 2006 Evinrude 150 Direct Inject motors. I have less than 200 hours on both motors. This weekend, Sat. They ran great. Sunday, The port motor would only run 4000rpm Max! I Saltwater fish and do alot of Idleing. The port motor would run a little ruff but when I would run the motor hard,It seem to smooth out. Talked to my Mech, he said that I am running only on Five Pistons and to change my sparkplugs. I had already changed the plugs at the end of last season and had run the motors only twice. So I did what he suggested and changed all six plug on the port motor. I ran the boat and still it is doing the same Thing!!! What could It be??
Please help!
 

tashasdaddy

Honorary Moderator Emeritus
Joined
Nov 11, 2005
Messages
51,019
Re: 2006 Evinrude 150 di 4000rpm only?

check compression, and take an induction timing light (the type that clips on to the plug wire. with you connect it to a power source, then check each plug wire for consistent spark. if you find one not working properly, completely swap that coil with another. if the problem follows the coil, you found the culpret. if not look further into the electrical. if all is ok, look at a clogged injector.
 

VHULL

Recruit
Joined
May 7, 2007
Messages
5
Re: 2006 Evinrude 150 di 4000rpm only?

Thanks tashasdaddy!!! I will try that and post what I find. I think It maybe a coil also. It runs to good to be a bad piston.
 
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