04 merc xr6 150hp problems

Treydye08

Recruit
Joined
Feb 29, 2016
Messages
3
OK I had a problem with my motor only cranking when I would turn the throttle wide open, and when I would get it cranked it would top out at 52 mph gps, it usually should go 58 in that situation. I brought it to the shop and he cleaned the carbs and replaced three cdm's and got it going. He told me it would crank and run 5800 rpm now. Well I took it out today for the first time and it is idling at 1100 rpm in neutral and won't get above 5000 rpm, which was 52-55. It didn't run bad it just won't get to 5800 like it would before. In the same situation as today it should go 58-61. Any ideas ?? Thanks.
 

Treydye08

Recruit
Joined
Feb 29, 2016
Messages
3
He checked and compression was 90 on all cylinders with one gauge and 100 on all cylinders with another. I wonder if it could be a plug or another cdm is bad or something
 

Dukedog

Captain
Joined
Oct 6, 2009
Messages
3,510
if ya had three bad cdms it probably wouldn't even break over!...much less run 52... jus sayin'...............
 
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