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  1. M

    A short zap my battery's power?

    Bought a new starter battery for my 50ESL73R Johnson and it started right up. I had some separate coolant issues, took the lower unit off, serviced and replaced. All back together, Icranked it over and the starter spun but briefly made some contact with the fly wheel, but didn't start. After...
  2. M

    1974 50hp Johnson/Evinrude - Rubber Bushing Cheat

    The rubber bushing just above the lower unit for the shifting rod (guide) popped out. I have greased it and tried to push it up back in with the lower unit dropped, but man!, what a pain in the ass. Anyone have any suggestion how to get that thing back in? I have tried needle nose pliers and a...
  3. M

    New Hub Kit for Older Evinrude

    I have a 50ESL73R Johnson/Evinrude and received a new prop (turning point model #21431511-13.75 x 15) and need the new hub kit but am struggling slightly with finding the proper one online. I believe it to be a 13 spline. Any suggestions? Thanks
  4. M

    1973 50 HP Johnson - Excessive smoke and oil residue in exhaust

    The motor runs fairly well but the amount of smoke and oil residue is a bit perplexing. I got new gas and added Amsoil full synthetic. Seafoamed the whole motor twice thinking it might be carbon build up. Brand new plugs too and they are not fouled after running it. They look clean as out of the...
  5. M

    OMC Tachometer Testing

    I have refurbished a 1973 fiberglass forester tri-hull and it has a 50hp Johnson on it. One of the last things to do was rewire the original tachometer. I found the grey wire in the OMC Power Pilot control box and wired that to the grey wire (non-regulated output) on the tachometer. I believe...
  6. M

    Evinrude 50ESL73R - Powerhead rotation?

    The starter on this should spin clockwise correct? meaning the powerhead should rotate counterclockwise (when looking down upon)? Seems backwards to me. Secondly, what does the R mean in the model number 50ESL73R. E=Evinrude, S=???, L=Shaft length. Does the motor run in an opposite rotation...
  7. M

    Brownish Type C lower gear oil?

    71 60hp Evinrude Triumph that I got for $200. Compression on all three cylinders is at 150-152 (which is good). I'm in MN so no salt water if that matters. When I got the engine there were no screws for the lower unit oil. Bought those and put in about a quart of oil. In my testing, roughly 30...
  8. M

    1971 60hp Evinrude Triumph Steering Bracket

    Need some help locating the proper steering bracket for this engine. The motor will be going on a 16" fiberglass boat.
  9. M

    1973 Evinrude 50 hp - Shifting into gear it kills when in water, not on muffs

    I've read enough posts and responses to know that this has been somewhat covered by I can't find anything definitive enough to solve my problem because I've gone through the sensible test. Problem: Runs just fine on muffs. Can shift and "accelerate" in the drive-way. When under...
  10. M

    1973 Evinrude - Variable compression between C1 & C2

    First time boat owner. I have a 1973 50 hp Evinrude Lark on a 1973 Forester trihull. Did a compression test today and the top cylinder topped out at 115psi and the bottom at 142psi. I repeated the procedure multiple times. I have seen recommendations that the cylinders should be with 10% or so...
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