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  1. H

    Sound Attenuator Cover Screws

    1991 2.5 litre 200 hp Merc. How does one install the bottom four screws? The lower cowel blocks access.
  2. H

    Pressure sensor for a 2.5 litre

    I want to add a water pressure gauge to a 2.5 litre 200 hp Merc. It has been suggested that rubber hose between the two thermostats is the place to take the measurement from. I am not convinced. It appears to me that when the engine is cold and the thermostats are closed, that there is no flow...
  3. H

    Hydraulic Steering

    1991 Merc 2.5 litre 200 hp I installed the hydraulic cylinder on the motor with the powerhead removed. When I went to reinstall the bottom cowels I found that the hydraulic steering slide plate blocks the rotaion of the front cowel latch. Is there a known solution to this problem? Modify the latch?
  4. H

    2.5 200 hp heads

    I just bought a 1991 2.5 litre 200 Hp V6. While going over it, I noticed this rust stain at the top of the left head. It looks like it is coming from the gasket. Should I be concerned? Should I pull the head? What am I looking for?
  5. H

    2 Stroke 200 Hp cylinder damage

    1987 Yamaha 200 Hp 2 stroke. Piston broke at the wrist pin then got pounded by the connecting rod. Note the rust in the top part of the cylinder. If you zoom in on the cylinder you can see that two of the transfer port passages are completely opened up, Both the steel sleave and the cast...
  6. H

    Fuel Recirc ??

    I am curious about the fuel recirculation pipes. How do they work? They are old (37 years). What affect would it have if they were cracked or leaking? Motor is a 200 ETLH.
  7. H

    Carb question

    1989 200 ETLH. When I drained the carbs for the winter, the lower port side bowl had no fuel in it. The other 5 bowls had fuel in them. The motor ran fine last time out which was about a week ago. How can one bowl be empty?
  8. H

    Lower Unit Leaking

    200ETLH - new to me found water in the lower unit So I drained it and refilled it. Planning to deal with it before winter, Later I notice oil coming from a hole on the side of the lower unit. Is this the pitot for the speedo? Any ideas what the issue might be?
  9. H

    What Year is my motor

    Just got a 2 stroke Yamaha 200 Hp. Having trouble identifying the year. There is no date tag on the right side clamp. The info tag has the following: 200ETLH 6G6 L
  10. H

    Triumph Carb Questions

    I am cleaning a set of carbs from a 1972 65 hp. When I removed the low speed needles, one needle brought out the NEEDLE VALVE BEARING. The other 2 did not. Is there a technique to get the other 2 out so I can remove the jets? Also, I have a set of carbs from a 1974 70 hp. They do not...
  11. H

    Spark plug wire pops off

    This problem has been going on awhile. One of the spark plug wires pops off the spark plug. The wire actually takes the screw-on terminal from the top of the spark plug, Threads not stripped. It was tight. The spark plug is not set in a well. It is on the surface. What is going on?
  12. H

    Greasing Engine

    I finally got my 65272S all back together and I could hardly move the throttle. Surprisingly, it wasn't the cable. It was the throttle lever under the cowl. The grease inside it was sticky. I separated it from the spark advance lever and I have cleaned up all the hardware including the throttle...
  13. H

    1974 Triumph Models

    The engine parts book shows 4 model number for the 1974 Evinrude 70 Hp. 70442M 70443M 70472M 70473M In 1972 there were 2 models of the 65 Hp motor (15" and 20"). What are the differences between the 4 1974 models? Interestingly, the 1974 Johnson only had 3 70 hp models.
  14. H

    1972 65 HP Anodes

    Does this motor have anodes? I am going to deal with the corrosion and anodes came to mind. If if does, where specifically are they? Some pictures, I like pictures. snowflakes close-up snowflakes close up snow flakes after light sanding with 220g
  15. H

    Electric Shift Issue 1972 65 Hp

    I have the lower unit on the bench for water pump service. This engine has not been run for 5 years and stored outside. I had read that you can test the hydro-electric shift by powering the solenoid(s) and hand turning the crank. It should take one revolution. I grounded the case and applied...
  16. H

    What Would Cause This

    1970 70 HP Lost power while waterskiing. Limped home. Low compression on center cylinder. Pieces missing from the center piston. Center piston connecting rod sloppy on the crank. Center piston rod cap is white and dry, the others are black and damp.
  17. H

    Cooling Flow Question

    1974 70 horsepower Evinrude Does cooling water exit the with the exhaust through the prop? If it does, where does the water enter the exhaust system? As far as I can tell, the water leaving the power head is directed to the outside of the exhaust tube and inside the midsection housing. It...
  18. H

    1972 65 Hp Waterpump

    I have 2 water pumps for this motor. One with a solid aluminum housing and one with a plastic housing. Neither pump had a gasket between the pump housing and the wear plate. (I also have a pump from a 1974 70 Hp that has no gasket. There is no big o-ring like some pumps have and there are no...
  19. H

    Steel Propeller?

    I never noticed this before, but the prop on my 1972 Triumph 65 appears to be made of steel. It has surface rust and a magnet sticks to it. Is this common? Is it repairable? I can't find any markings on it. It measures 12.5 X 21
  20. H

    Thermal Switch

    I see a thermal switch in the wiring diagram. What does it do? It is at the bottom near the right side.
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