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    RPMs fluctuating wildly

    2013 90hp Merc EFI 4 stroke. Problem began after I changed hi and lo fuel filters, replaced float switch in the FSM, and vac tested the fuel pressure regulator at 5psi for a crack in the hose. Now between 3k - 4k RPM, rpms will jump around, sometimes every few seconds. At 4k and above, it's...
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    Badly weathered engine cover

    I've got a 2014 Merc Outboard. I don't think the cowl was ever cleaned. What would you use to clean/buff/wax the plastic to restore some shine to it?
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    2013 90 4 stroke EFI - ECM errors & Gas in the Oil

    Engine hasn't bogged down, but getting faults on Vessel View app and gas in the oil. These are the faults from last 2 times it's been run. 7/28 3:48 3075-28 Electric lift fuel pump timeout. today while idling on muffs. 6/16 1:08 1112-23 Fuel vent switch. 6/16 1:08 1111-23 Fuel float switch...
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    2013 Merc 90 EFI leaking motor oil when tilted way up

    I tilted the motor way up today to make pulling the lower easier on the back. When I looked at the shaft of the lower, the top 8" was coated with motor oil dripping downward. I went back and checked the outboard, it had dripped about 6oz of oil over the tilt tube and into the motor well. The...
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    Tilt Tube maintenance

    My steering is good, and I'd like to grease it after 10 years to keep it that way. The cable comes in from the starboard side and there isn't room to remove it enough to get to the rod. I don't want to life the engine. The port side nut has no tube threads coming through and I don't think...
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    2013 90hp EFI 4 Stroke - no tell tale

    Before storage, it stopped peeing. After a new impeller (didn't help), checking the thermostat, and lots of flushing, it began working - I didn't know why. Today first start after storage, it pee'd weakly, then stopped., then wouldn't pee again. I can push weed-wacker line about 2 feet into...
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    Newbie LU question

    I'm new to a used 2013 90HP four stroke. I removed the lower today. Before removing it, I shifted to F so Id be able to turn the the prop a bit to align the drive shaft when reinstalling it. I expected the prop to smoothly turn the drive shaft, but it didn't. The prop turned clockwise with...
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    Gas pouring out of oil dipstick spout

    The OB is a 2007 9.9. It had a strong smell of gas from the oil fill, so pulled the dipstick and gas came pouting out. Must be a quart or two. I haven't used it since I changed the oil last, so I suspect that the portable plastic gas tank expanded in the heat (vent was closed on it and it was...
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    Pull Rope won't pull

    This problem began recently with my 9.9hp 2007 electric start 4 stroke. I can pull the rope and the engine will turnover. When I use the elec start, it won't turnover and seems seized. The battery has tested good. After I try the elec start. I can no longer pull the rope more than a few inches -...
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