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    1997 J50ESL Timing linkage initial - Too long spark control rod?

    After thinking about it all night, I did the following: Bought a timing light Adjusted the spark control rod back to 2.5" Adjusted the linkage to allow the engine to run with the spark control rod adjusted at 2.5" This adjustment consisted of: loosening the adjustment plate on the controls so...
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    1998 90HP Evinrude Problems!

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    1998 90HP Evinrude Problems!

    I saw what looks like heavy carbon on the piston and head, missed anything that looked like heavy damage except the lines in the cylinder walls. The carbon on the piston and head looked like what I might expect in a low compression situation where it glazes and peels like a poorly seasoned...
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    1997 J50ESL Timing linkage initial - Too long spark control rod?

    After having issues on the water last weekend, followed by replacing the power pack, coil (again), spark plugs, throttle roller, timing roller, and primer fuel lines... I'm having issues with timing. I went through the manual, and reset the short spark control rod to 2.5" length according to...
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    1997 2-Cylinder 50hp - One cylinder, then nothing

    I'll split this to a different thread... -- DW
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    1997 2-Cylinder 50hp - One cylinder, then nothing

    It's running, but I'm having issues with timing. I went through the manual, and first thing, I reset the short spark control rod to 2.5" length according to the manual (2 1/2" for models equipped with a 12 amp charging system or 2" for models equipped with a 4 amp charghing system). To...
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    1998 90HP Evinrude Problems!

    I did some research on this earlier this week. It probably matters where you are also. A 90HP that's been rebuilt and certified by a repair shop on the west coast of Florida is likely to cost you in the $4K area. My local shop has a 3-cyl 90HP ETEC that he's getting ready to rebuild sometime...
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    1998 90HP Evinrude Problems!

    Loopers have mostly flat-topped pistons and rely on a looping flow in the intake air stream that's produced by the shape of the intake port. Cross-flows have pistons with a cupped top and rely on the piston shape to direct the intake air stream away from the exhaust port. I thought a 1998...
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    What does "X" mean in the manufacturer code position?

    When I look up my engine online, I need to look it up as J50ESLEUR because that's an engine code I can find online that matches mine. J = Johnson 50 = 50HP E = Electric Start S = Saltwater L = Long Shaft EU = 1997 R - Revision code My actual engine code is X50ESLEUS. What does X stand for? I...
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    1997 2-Cylinder 50hp - One cylinder, then nothing

    Thanks for the advice @racerone I should be able to install the new power pack tomorrow evening, provided it doesn't rain. The boat's going in and out of the garage a lot this week. The shop also told me to index the low-speed mixture screws at 1.5 turns, so I'll start there. I'm replacing...
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    1997 2-Cylinder 50hp - One cylinder, then nothing

    After consulting with my local Johnson/Evinrude shop, I just ordered a new OMC power pack to replace the West Marine Sierra one that I installed in 2012. The shop owner said that after the test results I provided, the only possible areass of issue are the power pack and the timer base. I...
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    1997 2-Cylinder 50hp - One cylinder, then nothing

    Looking at discussion and videos on flywheel magnets... I don't have any reason to think my flywheel magnets suddenly let go, but it could explain some parts of why my engine isn't running well... The thing is - I tested the pick-up coils and they are measuring enough voltage. Does this mean...
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    Motor won't turn

    I think... Dowel in the spark plug hole to measure movement, ratchet on the flywheel nut to turn the motor. One motorcycle shop in Cleveland likes to unstick old Honda motors (after soaking) with a grease gun and adapter screwed into the spark plug hole. Seems good for a 1-cylinder, but might...
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    winter storage

    I like my Optimate battery tender... It's a 4-phase tender that I've heard will help to somewhat desulfate batteries. I used it on my motorcycle and kept a battery working for over 3 years. Now I have a LiPO4 on the motorcycle, and use the Optimate on the boat. - DW
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    Holeshot repaired - Now Surging

    Multi-cylinder, multi-carburetor engine, this might not be the situation... But - when my lawnmower surges, it means it has a stuck needle-and seat in the carburetor. It might be worth a look to make sure all of your needle/seats are clean and floats are working properly. - DW
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    Backfire but wont start - Low Compression?

    Guilty!
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    Question about parts that aren’t being manufactured anymore

    Someone with a CAD and 3-D printer might be able to print a new one...
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    1997 2-Cylinder 50hp - One cylinder, then nothing

    Just checked again after dark to see if I'm getting spark from the top cylinder. I have an old Champion spark tester that lost the screw that takes the place of the spark electrode, but I inserted a lead of monofilament copper to take its place. The spark tester presents a 3/8" gap. No spark...
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    1997 2-Cylinder 50hp - One cylinder, then nothing

    Good to know. Thanks! If one of those hoses were disconnected and open to air, would it impact idle mixture? - DW
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    1997 2-Cylinder 50hp - One cylinder, then nothing

    2 potential issues from my viewpoint: A vacuum line came off of my lower carburetor. After fixing it, I adjusted the idle mixture screws, losing track of the prior settings. I re-indexed by screwing all the way in, then back out 1.5 turns, also tested with 2.5 turns with no luck. What is the...
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