Need help with pressure test question of 175 Intruder

[BigB]

#1 105lbs, #3 100lbs, #5 95lbs, #2 100lbs, #4 100lbs, #6 95lbs


Look at buying a 1996 175 Evenrude Intruder with the above numbers is this ok or should I stay away.

Thanks

[fishnfool38]

I replied in the lounge, mine (150 intruder)runs about 118-125psi. A good carbon clean will probably bring those numbers up some

[JR19]

I saw on another site where you were asking the same question about the numbers. You also said the motor had only been ran 1-2 times in the last couple of years.

You want the numbers to be within 10% of each other. Do a compression test on the motor cold and then take it out and run it and recheck the numbers. The overall average should come up if the motor has been sitting for a prolonged time. The difference from high to low number should also get closer.

An Evinrude mechanic should be able to tell you what the compression numbers need to be. When asking supply the model and serial number

[Bassmeister]

I believe it's normal for the 2 bottom cylinders #'s5-6 to be lower in compression than the rest on the 60 degree Eagle engines. If it's not been run in a while I would want a carb rebuild. JMHO

[ChampioNman]

Numbers are fine, as stated decarb it and the bottom 2 cylinders are lower by design on some of the Eagle motors. You're in spec, tolerance is 15% overall. You will be fine.

[Lockjaw]

But you could use the numbers to work a deal. Just a thought.