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  1. SteveVT

    Is there a way to test a CDI unit? (696-85540-12 - 1986 8hp 2cy)

    More adventures with my 1986 Mariner 8hp 8M (manual) 6GI (Yamaha built). Had a great day going up and down river fishing, but she died at the very last moment coming into the dock, and couldn't be re-started. This time an ignition problem. No spark on either cylinder. I've pulled the coil and...
  2. SteveVT

    Why is a jet in 6G1 carburetor capped with a rubber plug?

    Just a point of curiosity, the main jet in my '86 Mariner 8hp (Yamaha) 6G1 carburetor is what I would expect to see: a cast tube in the carb body with a brass jet orifice screwed into it at the bottom. But next to it is another longer tube and brass jet orifice, and instead of being open to the...
  3. SteveVT

    Basic fuel questions

    I have three basic questions re. simple 2 cycle small hp outboard troubleshooting. I know the answers should be obvious, but maybe my understanding is incorrect, so I just want you to make sure I'm not assuming something wrongly: 1.) If a fuel feed problem is due to the fuel pump not supplying...
  4. SteveVT

    1986 Mariner 8hp 6G1 won't idle without choke

    I just cleaned up my low hours 1986 Mariner 8hp 6G1 manual shift (Yamaha block, I believe) after 30 years of storage. Taking off the scratched cowl, the engine looks new inside. I replaced the waterpump (though the impeller actually looked good). I took off the carb, cleaned it -- all parts...
  5. SteveVT

    How to set WOT timing without test wheel?

    I've read two alternate "non test-wheel" methods for setting WOT timing on the Johnson/Evinrude forum incl. "The Joe Reeves" method. Is there something similar for Mercury/Mariner engines of my type? (Mine is a 1989 Mariner 25hp EL two stroke. I have the Mariner OEM manual for that year, and...
  6. SteveVT

    Loctite propshaft seals or not? And what is Loctite type "A"?

    Just got the real OEM manual for my '89 Mariner 25hp EL 2 stroke and it seems to say apply Loctite type "A" onto the new prop shaft seals' OD's when pressing into the lower unit. Is this absolutely necessary, and what is Loctite type "A" anyway? I have Loctite red, Loctite blue and Loctite 680...
  7. SteveVT

    '89 Mariner 25hp EL -- two prop shaft seals or one???

    I have an '89 Mariner 25 hp EL, and I'm replacing the prop seal(s). When I opened the lower unit up there were two separate prop shaft seals -- an inner and an outer. I have as replacement a genuine Quicksilver 26-85090A1 kit. But in the kit there is only a single prop shaft seal. This seal...
  8. SteveVT

    Mariner/Merc CDI Electronics coil problems/confusion

    (My motor serial # 0C154840) I have an '89 Mariner 25 hp EL with CDI ignition, and it takes the standard two 7370A13, 832757A4 type coils. One of originals on the motor is bad. So I sent for a replacement, and what arrived was a CDI Electronics part #184001. I put the new coil in the engine...
  9. SteveVT

    '89 Mariner 25hp - what is the carb float setting?

    Hi Ihave a n '89 Mariner 25hp EL with a WMA 32 carb that I'm re-building. What should I set the carb float height to? Also, just checking, re. the fuel pump on the carb -- diagrams and videos I've seen show a single unit for the diaphragm and gasket. My kit came as separate diaphragm and...
  10. SteveVT

    1989 Mariner 25hp EL question about choke solenoid

    The choke solenoid on my '89 Mariner 25hp # 0C154840 is shot. I'd like to start this motor in a tank to see if it is runnable at all before spending $80 for that part. The motor also has an adjustable manual choke. The solenoid opens or closes a very small port to air on top of the carburetor...
  11. SteveVT

    1989 Mariner 25hp DIY rubber cowl seal?

    The rubber cowl seal is falling apart on my '89 Mariner 25hp. I looked up the price of a replacement and promptly passed out. When I came to, I thought for a bit and then wondered if anyone else here had come up with an alternative seal. I notice some extruded rubber seal material is sold by...
  12. SteveVT

    Torque value for flywheel bolt for 1989 Mariner 25hp 0Cxxxxx serial?

    Can someone give me the flywheel bolt torque value for a1989 Mariner 25hp (0Cxxxxx serial)? Thanks!
  13. SteveVT

    Which engine-side fuel fitting for a 1989 Mariner 25hp 0Cxxxxx serial

    I bought an Atwood fuel hose fitting advertised for "Mercury/Mariner" today at the local Runnings store, and it's not right. While it looks rught and fits in place, the catch doesn't engage in the slot on the positioning peg, so there's nothing to retain the hose fitting in place. Returned...
  14. SteveVT

    1989 25HP Mariner -- how does the ignition trigger work?

    What does the ignition trigger head read? I know it doesn't read the outer flywheel magnets. It faces inwards. So it must be reading something on the inner (shiny) part of the hub -- my question is: does anybody know what is in that band -- some kind of embedded magnetic spot (or spots) for the...
  15. SteveVT

    1989 25hp Mariner flywheel bolt hole stripped when pulling -- suggestions?

    One of the two bolt holes in the flywheel of my 25hp Mariner stripped when I tightened the puller while I was trying to remove the flywheel. Any suggestions for getting the flywheel off, now? I may be able to get a nut under that particular hole, but it's pretty tight to work in there. I'm...
  16. SteveVT

    1963 40 hp Lark V Non-Cork Carb Float Replacement?

    Does anyone know if there a newer ethanol resistant plastic carb float available for a '63 Lark V 40 hp? The original varnished cork type was part number 375792. And these just keep giving me problems. Thanks!
  17. SteveVT

    1963 Evinrude 40hp Lark V -- float needle problems

    I recently did a lot of repair work on this engine, including a carb overhaul. Boat's been out 10 times. I've had three occasions where the carb started to flood, and gas poured out of the top of the carb. The first two times it was debris from a bad NOS fuel pump gasket, which deteriorated from...
  18. SteveVT

    Old steel Evinrude tanks venting question

    I have three old Evinrude steel tanks with internal bubble fuel gages that I got with my '63 Lark V. They're in good enough condition to use, but they don't seem to have tank vents, unless they were covered up with red paint by the PO. I scraped the fuel cap clean of paint, but I still don't see...
  19. SteveVT

    SOLVED: 1963 Evinrude 40hp Lark V only firing on one cylinder

    I thought I was home free today on this engine after getting the water pump working. Previously I had replaced the magnetos, points, and condensers, and plugs. The engine runs but when I pulled the plug wire on the lower cylinder, no change. Pulling the plug wire on the upper cylinder, and the...
  20. SteveVT

    SOLVED: !963 Evinrude Lark V repaired water pump not working

    After repairing the water pump I am getting almost no water to the engine head after starting the motor. I shut down immediately. I let the engine cool removed the thermostat and left the thermostat cover off, to eliminate the thermostat as the problem. I started the engine, and got almost no...
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