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  1. K

    Timing marks

    Hi can anyone advise on the timing marks for a 1992 Mariner Magnum 40HP, presently re tuning engine and the paint on the flywheel timing marks has come off, can remark them but need to know which would be tdc and btdc etc rather than going through moving the piston. Have the seloc manual but...
  2. K

    Age of Mariner Magnum 40

    Can anyone tell me the age of my Mariner Magnum 40 4cyl/2stroke so I can purchase repair manual etc. Although the serial number is hard to read I think it says 9753941 but could be B753941, looking thro forums quite a few people are saying they start with a zero and then 7 numbers. The closest I...
  3. K

    Petrol Heads

    mariner magnum 40HpPetrol C'mon you petrol heads there must be some kind soul out there to help me. Open up a bonnet on a car and I'm fine, just bought a boat, had it out on the water it's been running great. Had flush muffs on when flushing engine for 10 mins or so and engine died. Battery...
  4. K

    New to boating

    Just had engine running on muffs no problem when all of a sudden it stopped. Good battery, engine wants to turn over but wont, fuel to engine ok. It feels like the safety swich has been turned off. had all 4 spark plugs out indiviually but cant quite see spark (not like on a car) what can it be...
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