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#2
05-29-2012, 01:57 PM
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try again with a warm engine at wot... I'd bet dollars to doughnuts that you like the numbers better
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#3
05-29-2012, 02:24 PM
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I don't remember testing mine so I'm no help.
From what I remember wide open throttle is the only correct way to get a reliable reading. Remember my Father telling me he picked up an engine for parts. The guy he bought it from said it ran like crap and had low compression, basically burned up. A good while later Daddy cleaned the carbs, done a compression test and it ran as good as any he had ever owned. He later ran across the guy he got the motor from and questioned him on the low compression. The guy did the test in the idle position. Is it possible the side with the lower compression might be head gasket related or the like?
__________________
 '75 Cuddy with '00 Johnson Ocean Pro 150 horse Benny
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#5
05-29-2012, 02:31 PM
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Just bury the shifter forward, that would be putting it in gear, is this OK. My shifter is not the kind you can pull out and rev in nuetral. I can't rev my engine in nuetral, only a little with the fast idle lever.
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Tight Lines !!
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#6
05-29-2012, 02:34 PM
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Yes or while you are at the rear of the engine, you can just open all the butterflies to do the same thing.
I assume you are jumping the starter solenoid to do the test. As the starter won't engage with the shifter in forward by using the key.
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'75 Cuddy with '00 Johnson Ocean Pro 150 horse Benny Last edited by tsubaki; 05-29-2012 at 02:42 PM.
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