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    Compression testing, hot or cold?

    I would like to be educated on how to do a leak down test. I have just acquired an '86 Merc 45hp that runs great but the other day just for info, I ran a compression check on it. (I know should have run a check beforehand)I removed all the plugs etc, did not squirt oil into it, turned it over...
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    Classic Fifty electric choke testing and replacement

    Thanks for the replies. Motor is up and running again..
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    Classic Fifty electric choke testing and replacement

    Testing..Since the electric choke is grounded by it's attachment to the frame..shouldn't a independant hot wire from the battery's hot side activate it? I'm thinking I'm bypassing the neutral and key switch and delivering power directly to the solenoid's hot lead... I'm not getting a response...
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    Classic Fifty electric choke testing and replacement

    Thanks Q. There's power to the choke so I'm taking it out. It looks like the cowling support (frame at front of the motor) has to come out! Anybody ever taken a choke out of a 1986 Classic Fifty?? Maybe there a trick to it!
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    Classic Fifty electric choke testing and replacement

    Thanks Jimmbo, I did that first, then put the direct power to the power connection on the choke.. magnet did not engage, so it's coming out. Thanks for the response!
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    Classic Fifty electric choke testing and replacement

    I have a 1986 Mercury Classic Fifty with an inoperable electric choke. I'm pretty sure the choke is bad. There is no power when pushing in on the key and a resultant "click" afterwards. However I would like to know the proper way to jump power to the hot lead on the choke to see for sure if the...
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    1975 Mariner 28hp Engine Rebuild

    I pulled the head on my 28 hp Mariner because it quit running on me after suddenly starting to lose power. I found a scored cylinder wall on the lower cylinder so I want to rebuild it. I can't seem to get the engine out after removing four bolts on the bottom. I'm thinking I need to drop the...
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