Mercury engine reliability-complete piece of crap
We bought a boat with a 2012 mercury 2 stroke 75hp engine, and it has been the biggest waste of money. At 40hr the ignition timing magnet developed fault and had to be c ok completely stripped down to replace, the service centre took 4 weekend diagnose the problem, at 200 hrs the engine has to be overhauled due to ignition problems. At 380hrs th magnets in the flywheel fell of stripping the gears of the starter motor pinion. Changed the flywheel and starter at $1600. At 430hrs the engine ceased and do not want to crank today. Mercury is the b...iggest piece of black crap ever. I won't buy any mercury anymore despite all the rubbish advertising that it is a good motor. I suggest that people focus on other brand before scraping at the very bottom of the list of Mercury.
Perfect Relibable Safe
Bought new starts first time ,no smoke,Tops mind blowing on speed & fuel .Very quite gear change and at idle ,eazy use.The price was cheep & so is the survice cost.I was unsure befor I bough for I love Johnson,But now I love OptiMax 75hp [censored word removed] it is fast and I love it 5star plus.
PS. Go for It Im glad I did
Reliable Tops on fuel fast v fast
Warranty too short 5 years free survice would be nice
Questions & Answers
I have a 2011 mercury optimax 75 hp, just bought it don't know anything about it, in low idle it shakes the steering wheel, if the boat is ideling I hear slight back fires and at half and full throttle I hear and feel slight back fires,,,changed the plugs , has good psi on all cylinders, ?????
I had a shudder at low idle turned out to be the top belt and the idler pully, replaced both and all was well, I would also check the fresh air filer next to the oil tank, this filter is not always changed as often as it should. The engine will always have a small vibration at low revolutions seems to be inherent in the model seems to even out at about 1800 rpm. I have never changed a coil pack, there is plenty of info on this item on youtube, these do give issues when they become faulty.
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