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    1989 Johnson 150 starting problem

    I have an 89 crossflow 150 V6 that was just rebuilt. It starts cold on the primer system but runs very rough. After it runs a little while and comes up to Temp. it seems to stall out and quits. When I try to restart it, it will not fire at all. I pulled all six plugs and grounded them and they...
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    Johnson tilt and trim problem

    I have a 1990 150 HP johnson motor. The lift cylinder was leaking so I took the tilt and trim unit off of the motor to replace the seals in the lift cylinder. I put everything back together and filled the unit with ATF. When I operate the unit I hear the motor running but it won't lift up. If I...
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    1991 Mariner 50HP low oil alert

    I have a 1991 50 HP 3 Cyl. Mariner engine we bought used. The motor had good even compression in the cylinders so we are using it on a 16 Ft boat we put together. The engine needed some minor wiring repaired under the cowling and some repairs to the oil tank. On our test run I ran 50 to 1 pre...
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    1990 Johnson 150 spark problem

    Looking for some help. I have a 1990 150 Johnson I bought used that had a bad cylinder. I rebuilt the powerhead with a freshwater block and bored it 030 over with new pistons. I have the engine all together and was going thru some checks getting everything ready to syart the engine. I had all...
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    Mariner 50 HP lower unit installation

    I have a 1991 Mariner 3 Cyl. 50 HP motor I bought used. I removed the lower unit to install a new water pump kit and changed the lower unit oil. My question is what is the correct way to re install the lower unit? I am not sure what to do about the shift shaft. I can rotate the shaft and get it...
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    1986 Johnson 150 powerhead

    I have a 1986 Johnson 150 engine that I bought knowing it had problems. when I pulled the engine apart I found all of the pistons on the right side bank of the engine scored. The bores in the block were scored as well. Further inspection showed a lot of corrosion around the cylinder liners from...
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