engine comp.test

oogaboga

Petty Officer 3rd Class
Joined
Jul 3, 2003
Messages
82
Ive got a 1990/150 force 5cyl.reads as follows<br />#1,151<br />#2,151<br />#3,160<br />#4,160<br />#5,160<br />should I worry at this point or is all fine,it runs great,just want to know if its ok.
 

seldont

Petty Officer 2nd Class
Joined
Oct 4, 2003
Messages
110
Re: engine comp.test

Looks great for a 14 year old motor. I would not worry....
 

roscoe

Supreme Mariner
Joined
Oct 30, 2002
Messages
21,763
Re: engine comp.test

My manual doesn't cover the 150 very well.<br />Does one carb feed the #1 and #2 cylinders?<br />Perhaps it is running a bit lean?<br />Causing a little more wear?<br />Maybe time to have carbs cleaned and do a link 'N sync.<br /><br />Its still not bad, and may not be worrying about.
 

oogaboga

Petty Officer 3rd Class
Joined
Jul 3, 2003
Messages
82
Re: engine comp.test

#1and#2 feed off the top carb.checked it out and found top carb 1/4 turn in to much could that be the problem.will sea foam bring it back.
 

roscoe

Supreme Mariner
Joined
Oct 30, 2002
Messages
21,763
Re: engine comp.test

Seafoam may only bring it back if the lowered compression is caused by a stuck ring. :) <br /><br />Not to worry, you are still well within the "10% of the other cylinders" guideline. And at 150+, you have plenty of compression.
 
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