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  1. AEROCOOK

    9.8 not pumping water

    My early 80s 9.8 Merc (Canadian model 7176494) isn't pumping water at idle but if I increase RPM I get a weak (and very hot) stream out of the tell tale. I'm running the motor in a barrel with the water level at least as high as it would be if on a boat. I removed the lower unit , disassembled...
  2. AEROCOOK

    9.8 Swivel bracket dragging on transom bracket

    I've been working on an early 80s Merc 9.8 (Canadian S/N 7176164) and I've discovered that when turning the motor, the swivel bracket section that the tiller handle attaches to drags on the transom bracket. I suspect I'm missing some sort of spacer / bushing at the top of the swivel tube that...
  3. AEROCOOK

    87 Johnson 15 hp recoil starter problem

    I took the recoil starter off of a 1987 Johnson 15 and I'm having trouble reinstalling. It seems when I tighten down the center bolt, the whole thing binds up but if I leave the bolt a bit loose, it seems to work. I must be doing something wrong, any ideas or tips?
  4. AEROCOOK

    1988 / 1986 110 hp powerhead swap

    I just picked up a 1986 Evinrude 110 to replace my sick 1988 Johnson 110. The Johnson is in better overall condition (except for low compression in one cylinder) so my plan is to swap the Evinrude powerhead onto the Johnson. I dont want to end up with a "Frankenmotor" so my plan is to keep...
  5. AEROCOOK

    1981 Merc 9.8 where does this tube go?

    I was fixing the kill switch wires on my 1981 9.8 Merc and I came upon this little tube. It looks like it's supposed to plug in somewhere but I don't know where. Can anyone offer some insight?
  6. AEROCOOK

    Con rod cap bolt socket.

    Really simple question here... Where can I find a suitable tool to remove and reinstall the connecting rod cap bolts on my 1988 Johnson 110? I realize that it's a 5/16 12 point but all the local stores I've gone to only sell 6 point sockets. Ideally, I'd like it to be a 3/8 drive so I can go...
  7. AEROCOOK

    Low compression in cylinder with no spark

    As mentioned in a previous post, my 1988 Johnson 110 had no spark in one cylinder and I had run the boat for about 3 hours in this condition. I now have the spark condition resolved but the compression in that cylinder is lower than the other 3, it is reading around 104 while the other 3 at at...
  8. AEROCOOK

    Ignition coil interchangeability question.

    I've just discovered that the ignition coils on my 1988 Johnson 110 are not correct per the BRP catalog. According the catalog they should be part number 583737 but the coils on the motor are 582508 I haven't been able to find any info that would suggest that these 2 parts are interchangeable...
  9. AEROCOOK

    1988 Johnson 110 intermittent misfire

    My 1988 Johnson 110 (J110TLCCA) has been plagued with an intermittent misfire for the last 2 years and I'm hoping someone can help me diagnose the problem. The motor idles perfectly at 800 RPM but as I accelerate, it starts to shudder, if I continue to advance the throttle, it will eventually...
  10. AEROCOOK

    1988 Johnson 110 cant advance timing far enough.

    Hi all. I have a 1988 Johnson 110 and for whatever reason, I cant advance the timing to the required 28 degrees BTDC. The timing rod adjustment block is set at the maximum position and all I can get is about 25 degrees BTDC. To me, a logical solution would be to bend the rod a little bit to...
  11. AEROCOOK

    97 Mariner revs high but wont get to speed and wont plane.

    I'm helping a friend try to figure out a problem with his boat and frankly, we're stumped. The boat is a 16' Legend aluminum fishing boat and the motor is a 1997 Mariner 40hp 4cyl. Last year he hit a rock at high speed which destroyed the lower unit, he took it to a mechanic who installed a used...
  12. AEROCOOK

    Fuel line question

    I have a simple question that I'm sure has been answered more than one in the past but I couldn't find the answer using the search feature. Why do outboards always use black rubber fuel line and is there a good reason not to use the transparent plastic line used on other power sports motors like...
  13. AEROCOOK

    Am I missing parts? 1954 CD 11 5.5 hp

    I removed the lower unit on my newly acquired 1954 Johnson 5.5 (CD 11) and I think I may be missing a few parts. What I discovered is that my driveshaft has a thin dowel pin through it a few inches from the top, not knowing what it was for I did some research and although I didn't find anything...
  14. AEROCOOK

    Gale outboard model year?

    ]I just picked up a Gale 15hp outboard and I'd just like confirmation on the model year. The model number is 15D 12B which I think is a 1962 model year? I made this assumption after reading another post where the model was a 15D 10B and it was identified as a 1960 model. Aside from the hood and...
  15. AEROCOOK

    Annoying Gear case problem 1985 Honda BF75 7.5 HP Please help.

    I have a 1985 Honda 7.5hp that is causing me a lot of grief so I'd really appreciate some help. Here's the deal, I did a complete teardown and reassembly of the gear case replacing every bearing and seal but now something seems to be out of adjustment. With everything back together I can feel...
  16. AEROCOOK

    1988 Johnson 110 tilt / trim issue.

    I had a problem with the tilt / trim on my 1988 Johnson 110 (J110TLCCA) today and I'm looking for some quick help. In a nutshell, the motor would go up but wouldn't go down. Suspecting the switch was the problem, I carved away the insulation on the 3 wires in the circuit and used a knife to make...
  17. AEROCOOK

    Lower unit interchange 1957 to 1962 Evinrude 10hp (yes I checked the sticky)

    I have a 1957 Evinrude 10hp parts motor and a friend needs a lower unit for his 1962 Evinrude 10hp. Visually, they look the same but can anyone tell me conclusively whether or not they will interchange? Thanks.
  18. AEROCOOK

    Water pump kit no longer available? 1980 4hp Canadian.

    I picked up a circa 1980 Mercury 4hp (Canadian edition serial # 7154888) as part of a package deal and I need a little help finding a water pump assembly. The housing is melted so I will need the complete pump assembly, not just the impeller. All of the online catalogs seem to be for US models...
  19. AEROCOOK

    1958 Evinrude 10hp stripped threads on crankshaft

    I have a 58 Evinrude 10hp and the threads on the end of the crankshaft (at the flywheel) are stripped. Is there a fix for this or is the crankshaft toast?
  20. AEROCOOK

    1970 20hp Viking parts?

    I have a 1970 Viking 20hp which I believe is a re-badged Chrysler. The motor is complete and in decent condition but does require a little TLC. I did a Google search for Chrysler parts but most sites don't list motors this old. Some items that I need for sure are a cylinder head + gasket, water...
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