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    Motor ID

    Look on top of the heads. There should be what looks like a freeze plug with the model and serial number.
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    1985 Evinrude 185, 2 stroke, Engine shut off at idle (help)

    Minimum compression should be 100 and all cylinders within 10%; but the engine will run at lower values. I am currently rebuilding two motors with compression around 80. They would run fine and idle but hard to start.
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    1986 / 1989 120-140hp OMC ignition differences

    I looked at my service manual and they both have the same ignition system (Type II). Don't know if mounting is the same?
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    Need help identifying a 85hp Johnson/Evinrude

    It is earlier than 1979- I have one. The serial number would be on a freeze plug on top of the crankcase near the heads.
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    9000 ft altitude jetting

    Curious where would one find different size jets? I moved to 5600 elevation and did not change jets. Engine probably would run better?
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    Did I cause damage?

    You should be fine. Cylinders were still being lubricated.
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    85el77s Shift Linkage

    The rod bend should face the part it fastens to. I am assuming the shift cable pulls in reverse which pulls up on the rod. If so then the rod may need to be rotated counter-clockwise to lengthen. One way to check shift position is to disconnect the rod and push or pull with a screwdriver or...
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    Head bolt torque specs

    I have a repair manual that covers thru year 1991. For a 175 the cylinder head bolt torque is 20-22 ft. lbs. They don't specify any pattern except to tighten in 3 stages. 1/2 torque spec, 3/4 torque spec, and finally full torque spec.
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    Evinrude XP-150 Trim has no power

    For test purposes find the wires coming from the tilt/trim. Use a jumper wire and from the 12V source touch the green wire and then blue wire momentarily. If the tilt works down and up respectively then it is a solenoid or wiring problem- maybe the tilt switch?
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    1979 85HP V4 with low compression (80psi) in all cylinders

    Just a follow up on this issue. It turns out the stator was causing the power loss issue. Seems it would heat up after running awhile and then start acting up. Replaced everything else and finally the stator which cured the problem. Currently rebuilding the engine because of low compression.
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    evinrude spark issue

    Just to let you know I had new power packs and coils put in mine and already have had one coil and a power pack go out. Always good to recheck things.
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    1988 Evinrude 50hp tilt relay

    You can use the wires coming from the tilt/trim to test if working by momentarily connecting to a 12V source. The way I remember which wire does what is that blue is up (for blue sky) and green is down (for green grass). Ground the black wire and touch either to 12V and the tilt/trim should...
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    evinrude spark issue

    I just solved a similar issue where the engine would run fine WOT until I shut it off for awhile and restart. It would lose one or two cylinders. I turned out that my stator seemed to die if it heats up. If I left the boat sit for awhile longer the motor would run fine. It never showed any...
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    Can piston rings wear before cylinder wall?

    Thanks for the reply. I will have everything checked out.
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    Can piston rings wear before cylinder wall?

    Thanks for the reply. I will not try to do it myself. I am taking it to a machinist. Just have to see what the 0.030 piston and cylinder condition is.
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    Can piston rings wear before cylinder wall?

    Thank you for the response, I never knew the cylinders could wear out non-concentric. I will have a machinist do the job. Probably go with all new.
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    Can piston rings wear before cylinder wall?

    I have two- two stroke outboard motors with low compression. 1979 85HP V4 and 1979 150HP V6. The V4 has 90 psi on all cylinders and the V6 has 60 psi on all cylinders. I am currently using the 85HP on a 17' deck boat that runs about 29 miles/hr WOT. I recently purchased the 150HP used but...
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    Boat won’t start, I’m at a loss

    Check for voltage at the start solenoid. The battery cable is on one end terminal and the starter on the other terminal. There should be a cable coming from the wiring harness which is the power to the key switch. If it is connected to the starter side it will not start. There are two...
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    Johnson 115 lower unit/ mid section leaks water. Is this normal?

    I would remove the lower unit and inspect the water pump. When running does water come out the weep hole of the motor? If not the water pump may be clogged or something.
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    1976 johnson 115 shifting issues

    It sounds like the the shift linkage needs adjustment. When you shift to forward the cable will push on the linkage at the motor. There is usually a threaded adjustment wheel on the cable that you can turn to lengthen the cable. If you disconnect the cable and shift it into forward manually...
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