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    1975 Mercury 850 Carb Adjustment

    First off, everyone one in here providing advice has been excellent. Just ned to make some final adjustments and I think I'm there. Today I went out with my boat, I've posted about rebuilding the carbs, adjusting the floats after they were not seating the needle correctly and finally got it...
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    1975 Mercury 850 Help with Carb/Fuel Issue

    All, I just finished rebuilding my carbs and reinstalled on the motor. When I primed the bulb to fill it with fuel I noticed the botom carb was squirting fuel out the top of the bowl where the Jet, Bowl Vent. I read a little about this and could it be a stuck float or the needle not seating...
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    Power Tilt Motor Replacement

    Just trying to confirm some iformation. I have a old PTT from a Merc 850. The motor is bad. After doing some research, the one I have has a serial number of 64461A1. Looking at Mercury Marine.com, I located the new numbers, 92975A32. When I went to the marina today to talk with a...
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    Trailer Lights Intermittent

    My tailer lights are acting wierd. First all the lights work, but the left turn signal and brake does not flash. It does turn on with the head lights but nothing else. Only thing I've checked so far is close to the plug. One white wire is not connected to anything. Any ideas where to start...
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    Merc 850 Won't Stay Running at Idle

    I started my 850 today after it ahd been sitting for almost a year. It took a little to get it started. I left it throttled up for a while and then tried to trottle back to idle and it died. I started it back up and let it warm up some more at high throttle and then tried to idle and it died...
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    Mercury Power Tilt problem

    Anyone, I got a boat from a guy on trade and the tilt does not work, it only clicks when you hit the up button and nothing when you hit the down button. The one I have states only use with MERC 1400 and 1500. I have an 1975 850. When the guy went to show me the tilt he was surprised it did...
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    Mercury 850 Thunderbolt Serial 4102281

    I just traded for this boat and motor. I've been reading the posts and checked the serial and I'm pretty sure it is a 1975. I have a few question to start with. 1. The motor has been sitting a while, I think a year. I had the guy start it and it tokk a little starter fluid and the choke and...
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