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    1977 Mercury 115 rebuilt and video for idle run, suggestions please

    https://youtu.be/14KXTDQXjQE Hi, I posted a video for the idle run of the 1977 mercury 1150. I have concerns about the motor. 1. The water tail used to be very good. A very strong water stream. However after taking off the lower unit and put back again. It runs poorly as the video shows...
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    Timing light shows the same position for all the ignition lines.

    I am tuning with 1977 1150 inline 6 cylinders. When I use timing light with the top cylinder. It shows 1. 4 degree BTDC for primary pick up. ( manual suggests 4-6 BTDC). 2. 20 degree BTDC for max advance timing. ( Manual suggests 21 degree, but 20 degree maybe good too according to the gas...
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    Trigger or other problem for thunderbolt 1150 with distributor.

    The ignition worked after I purchase and install a new trigger in the distributor. Because I have a carburetor flooding problem. I replaced the float system. But when I hook them up, the flooding problem is gone. But there is no ignition for all sparks. I checked the switch & coil with the...
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    Carb leak and dripping, and the motor can not idle.

    I tried to start the 77 mercury 1150 after replacing the distributor trigger, cleaning the carb and rewiring. It is very hard to start unless I rotate the distributor half way between the idle and second pick up. I noticed there is gas leaking from 1-3 carbs and the dripping pan is almost full...
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    Gas Sprayed out of Carburetor

    I have a 1977 Mercury inline 6 cyl 1150 rebuilt. When I try to start it out, I found out the gas sprayed out of the carb. And if I squeeze the bulb very hard, I can also see the gas float out from the throttle. What's the possible reasons for the problems? Thanks, attached is the picture of...
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    I can hear the ignition beeps only in the distributor house

    This is a 1977 mercury in line 6, 1150. I replaced the trigger in the distributor. But can only hear the beeps inside the distributor. I connect the high lead from the coil to the spark test kit. It lights up when cranking the flywheel clockwise. I guess it is fault of the high lead connected...
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    1977 Merc 115 Tilt/Trim Pump

    The pump does not work. The motor corrode inside out. Is it worthy to fix it? Or is it possible to fix it? If the pump is going to be replaced, what part should I buy? The pump motor only? Or can I just buy any other similar pump which can hook up with the two cylinders? Thanks.
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    1977 Mercury 115 Switch Box Troubleshooting

    The outboard motor I got has no ignition for all cylinder. I did the following test. 1. I first take off the switch box and connect the switch following attached test diagram. Jumper the red and white with 12 v. Then jumper the brown and white. There is good fire between the high tension lead...
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    1977 Mercury 1150 need help!

    Hi, everyone, New to the forum. One guy I met today for craigslist happened to work on the 1978 1150 before. He recommended me to this forum and he appreciate the help from here. So thanks for any advice in advance. My story: Last week I bought a Boston Whaler 17 and Mercury outboard 1977...
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