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  1. J

    1997 Force 120 Idle Will Not Settle Down

    Thank you. There is a good chance that a throttle butterfly is open more than it should be. I'll have a look. J
  2. J

    1960 15032

    Yes. Check fuel pump. Disconnect line from pump to carburetor. Wrap pump exit with rag. Turn over engine. Do not start. Just turn it over. Fuel should be pumped into rag with engine rotation, not weeping, nice spurting. The fuel pump's job is to try to flood the carburetor. The...
  3. J

    Water Pump Housing Not Machined... This is hard to believe.

    Crosbyman, I got you. Thanks for the leroy's info. I've never looked up specs for this engine but I kind of understood they run at lower numbers. Thanks for the values in print. Helps my confidence! This little unit does hum. It does sound tight. Shy one, though. It took condensers, a...
  4. J

    Water Pump Housing Not Machined... This is hard to believe.

    Yes, indeed. This is not the original cover. Too bad. It cost this guy his engine. Quite lucky the pistons aren't trashed. I'm gonna have to go back to him and ask if he remembers where he got this from. Probably supposed to look more like this. J
  5. J

    No spark on 2 of 4 cylinders

    Completely confirmed with new trigger assembly. All 4 firing now. J
  6. J

    Water Pump Housing Not Machined... This is hard to believe.

    A friend gave me his 1965 Johnson, 9.5, MQ 11. Says he's tired of dealing with it. Can't figure out what's wrong. He put it up several years. No other information other than it is junk to him. Every subsystem on this thing needs help. I gave it new condensers, spark plugs, head gasket...
  7. J

    1989 115hp L6 carb no response to idle screw adjustments

    Timing done with a light? Confirm ignition on all cylinders. Are the bottom 2 leaking spark? Check at night in the dark. Clogged idle jet could hurt idle to midrange but high speed should run. Could be a stuck needle valve in lower carb. Does the carb have a drain plug you can open to see if...
  8. J

    1997 Sears Gamefisher 9.9 2 stroke won’t start

    If there's a chance of overheating check compression first. You want to be sure your cylinder health is good before spending $$. Spark should jump a 3/8" air gap. Spark on both? Then manually add premix fuel into carburetor. You may have to pull a few times since manually adding fuel may...
  9. J

    Piston Rings Top vs. Bottom

    Thank you, J
  10. J

    Piston Rings Top vs. Bottom

    Genuine Mercury 831255A6
  11. J

    1997 Force 120 Idle Will Not Settle Down

    1997 Force 120 ELPT, 4 cylinder, 2 stroke, serial 0E277049. When coming off high speed and throttle lever is pulled to neutral, the engine drops revs normally but reaches a point where it will not come down to a quiet, shifting idle speed. Linkages all respond, throttle cam is in correct...
  12. J

    1980 50 hp 4 Cylinder, Bottom Two Dead

    Not that anyone's interested, but, ... Yes. Yes, it does mean a bad trigger. Verified with spec resistance measurements. wht/blk to brn OR wht to vio should measure 700 - 1k ohms. I've got an open circuit in one of my pairs. J
  13. J

    Piston Rings Top vs. Bottom

    Got this out on another thread with no results. Received a set of rings for a 3 cylinder. 6 rings at 2 per piston. All 6 rings are tapered to what appear to be the same dimensions. 3 are black, completely black, probably from heat treat. 3 are black with the outer edge exposed in silver. Is...
  14. J

    No spark on 2 of 4 cylinders

    With type V ignition, I've verified my problem is a bad trigger. Spec values of resistance between trigger leads, wht/blk to brn OR wht to vio, should be 700 to 1k ohms. One of mine is 830+, nice, the other is an open circuit. Bad trigger assembly. J
  15. J

    E8RCRM 8 hp Timing Marks?

    4-pin harness connector dirty, pins shorting. A mess inside. Cleaned, realigned pins, confirmed continuity. Timing back on track. Signals look clean. J
  16. J

    Ring Set Tops vs. Bottoms

    Got a ring set for a 50 Merc, 3 cylinder. 2 rings per piston. 3 rings are black rimmed, 3 are silver rimmed. They mic the same, both are tapered. Which are top and which are bottom? Thanks, J
  17. J

    No spark on 2 of 4 cylinders

    I'm also chasing one of these on a 1980 with type V ignition. On mine, bottom 2 are out. I swapped trigger wires to switchbox and problem followed. I have a thread out now asking if that means trigger assembly is out. Appears that if switchbox gets a signal it can process it on through to the...
  18. J

    1983 7.5HP Power Head Gasket Replacement

    1/4-20 bolts, right? 15-20 ft-lb. No sealant. J
  19. J

    1980 50 hp 4 Cylinder, Bottom Two Dead

    Took a look at a 1980 50 hp, 4 cylinder, 2-stroke, serial 5634000. Type V ignition. Verified bottom 2 cylinders are dead. Under the flywheel there look to be 2 triggers in one molded housing ring about 90 degrees from on another. Sits inside, beneath the stator coils. There are four wires...
  20. J

    Small Flywheel Tool

    Thank you, J
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