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Motor died on a recent trip--lost power quickly from cruise speed then stopped and wouldn't restart. Got it to run for a bit with some with throttle on muffs in the driveway, and noticed exhaust out of the tell tale. Did a compression test and top hole (2 cylinder 2 stroke) was down to 30psi...

So I have a 1982 Merc Mariner 40EL, verified by serial number--it's a tough motor to track down service specs on, as the service manual doesn't really cover the carb or the waste spark ignition system in the specs, along with other topics. The motor ran and idled when purchased and on the first...

So I have a 1982 Mariner 40EL, which is a 2 cylinder with 2 Keihin carbs. I was working through the carbs to clean, rebuild, and learn--and buggered one of the main jets, as it was stuck--after the top cracked, had to use an ez-out to remove it. Crowley lists the part number as 42437M Jet...