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    snapped driveshaft Mercury 2011 150 Optimax

    The service tech said it would take 5 days for a rebuild. Well they didn't rebuild it, they sent me a brand new lower. Pretty stoked on SEI.
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    snapped driveshaft Mercury 2011 150 Optimax

    Prop is 3 blade 15x17 black max. Hull is Bayliner 21 center console. I don't think it's particularly fast. It appears that SEI is going to warranty the lower as it has only been 2 years.
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    snapped driveshaft Mercury 2011 150 Optimax

    It's breaking right inside the water pump. I did hear the motor come out of the water on our way out, maybe twice for just a fraction of a second. We pushed straight into some steep chop for a while.
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    snapped driveshaft Mercury 2011 150 Optimax

    So this is the second driveshaft I've snapped. This time I was 42 miles offshore so it was rather inconvenient. My last driveshaft was 2 years ago and I put over 1000 miles on this one. Any ideas as to why my motor is eating driveshafts? I put a brand new lower on this time and it still broke.
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    Overheating at trolling speed

    Mercury 150 2011 2 stroke Engine overheats at trolling speed, when I get her up on plane she drops down to 107 quickly and has no issues. I put a new lower on it 3 seasons ago. I have not done an impeller since. Should I replace the impeller? Or maybe there's gunk somewhere blocking the intake?
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    Force 85 trim

    nevermind, got it working. It may have been a combination of low oil and a very low battery. Thanks for the help, going to hopefully take my kids out soon!
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    Force 85 trim

    Thanks, I topped off the oil. Would you recommend replacing the unit in the picture now? I can hear it click on and off but it doesn't even try to raise or lower.
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    Force 85 trim

    It looks like 2 wire. Green and Blue. How do I check the oil? Do I add it to that screw on the right? Thanks
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    Force 85 trim

    I just acquired a new to me boat and the trim doesn't appear to work. When the trim switch is pressed I can hear that it's making a connection to the motor, and I hear it making a connection on the trim motor. Should I buy a new trim motor? I've seen them on eBay for around $200. Please let...
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    new lower can't get boat to shift properly

    nvm issue resolved.
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    new lower can't get boat to shift properly

    Optimax 150 2011 I just installed a new lower and I can get forward and neutral or reverse and neutral. I've dropped it about 8 times trying to line up the gear shaft. Shift cables are unhooked. Doing the shifting by hand. What am I missing? Thanks!
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    2011 Optimax 150 snapped driveshaft

    Sharp knife break at the lower. I'm gonna order the SEI lower just want to make sure it doesn't happen again. Kinda scary with the distances i go in this boat.
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    2011 Optimax 150 snapped driveshaft

    Any idea what would cause it to snap?
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    2011 Optimax 150 snapped driveshaft

    Not sure about being defective. I had a sneaking suspicion the guys that installed it didn't know what they were doing, but I put like 50 hours in it so it might have been installed ok. I'll look into SEI. $1k doesn't sound horrible.
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    2011 Optimax 150 snapped driveshaft

    Coming back from fishing with my kids and going about 30-35 the boat all of a sudden went into neutral. The binnacle was stuck and I couldn't shift forward or reverse (we got towed in). I thought the cable might be stuck or maybe it had broken, but after taking everything apart and dropping...
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    wiring harness 2011 Optimax 150

    Can someone please point me to what wiring harness I need for an Optimax 150 2011? I have the old 8 pin and I'd like to move to the 14 pin and hook up to a Raymarine 7HV. Thank you!
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    Mercury Optimax 150 2011 boat not getting up to full rpm

    OK, thanks. I have a feeling that running the wrong brand might be the issue, can't get the locking nut on. Just ordered a 15x17 black max from amazon.
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    Mercury Optimax 150 2011 boat not getting up to full rpm

    I should mention I'm mainly concerned about low speed planning, and gas mileage. It's a fishing boat. The boat does 40mph the way it is now.
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    Mercury Optimax 150 2011 boat not getting up to full rpm

    1) Performance issue you are trying to correct. Boat is only getting up to about 4500 rpm 2) Current prop manufacturer, model, aluminum or stainless as a minimum. Aluminum, not sure of brand but it came from an evinrude motor. I have a Mercury. I also have an Evinrude Cyclone prop, but my...
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    Is it possible to connect the trim on a Mercury Binnacle

    8M0059686 to an 8 pin wire harness? Thanks.
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