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  1. wbeaton

    Big Twin Impeller

    I ordered an impeller for my 1954 Evinrude 25 hp and it doesn't fit. Everywhere I've checked says that I have the right impeller, but this one clearly will not fit over my drive shaft. Has anyone else had this problem? The original part #375808 from my parts manual comes up as replaced by OMC...
  2. wbeaton

    1950's Starter ring gear torque specs.

    Is there a torque specification for the starter ring gear bolts to the flywheel assembly on a 1954 25hp? I can't find one in my factory service manual.
  3. wbeaton

    1954 25hp Choke solenoid

    Things went so well with the two 7.5hp Evinrudes I rebuilt/repaired this year that I decided to complicate my life with a 1954 Evinrude 25 hp Electric. I understand that the choke solenoids on these motors can be troublesome. Does anyone have any wisedom they can share regarding these? Are...
  4. wbeaton

    20 hp hole shot

    I have a heavy 14' aluminium boat with a 20 hp that takes a while to plane with two +200lbs guys. If I change my prop from 10 x 13 to 10 1/2 x 11 can I expect to get on plane quicker or will it not make much difference? Will it also greatly affect my top speed? My boat cruises at 21-22 mph with...
  5. wbeaton

    Is it me or my manual primer?

    I had the carb rebuilt and the manual primer on my 1987 20 hp Johnson replaced this spring and I've had trouble starting it ever since. It used to start on the second pull when cold, but now it takes at least 4 or 5. That's assuming I don't flood it. Runs great once its started. When I pull the...
  6. wbeaton

    Pressure Tank Quick Connect

    I need to replace the o-rings in my pressure tank quick connect fitting. Anyone know how to do this? I can't figure out how to remove the brass retainer without damaging it.
  7. wbeaton

    1956 7.5hp Ring Replacement

    I am in the process of tuning up my 1956 7.5 hp Evinrude. I did a compression test and found 75psi in the top cylinder and 70 psi in the bottom. I have not yet pulled the head or decarbed the engine, which I will do before I even consider doing a ring job. I will also inspect the cylinders for...
  8. wbeaton

    Can't fill lower unit on 7.5

    My buddy has a 7.5 Mercury I don't know what year it is, but it's likely 60's-70's says Kiekhaefer Mercury. He recently noticed that the lower unit is leaking oil. We tried to fill it with oil and we couldn't get it to take more than a few drops. It wouldn't take oil from the bottom or top...
  9. wbeaton

    1956 Evinrude 7.5 hp operation

    I have what is probably a stupid question, but... I recently bought a 12' tin boat that came with a 7.5 hp Evinrude Fastwin with no operators manual. I took the boat for a spin before I bought it. It started with no problem and ran great. After getting it home I noticed a "shift" position on...
  10. wbeaton

    Charging batteries without an alternator

    Hi everyone, this is my first post. I've used the motor repair section before, but this is the first time I've been in the forums. I had a conversation today with a fella at the boat launch who told me you could connect a rectifier to the coil inputs on a manual start motor and charge a marine...
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