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  1. M

    Testing thermostat with torch

    Well found the issue. Owner told me the pump was changed 2 years ago and it actually produced a decent telltale but looking here lol. Only found the tip of one impeller fin. Rest look like they were smeared into oblivion inside the impeller cup.
  2. M

    Testing thermostat with torch

    Possible the head may have been off and makes sense the rtv may have spread out to those little holes. Thanks. I'll keep digging
  3. M

    Testing thermostat with torch

    I don't see them listed on parts diagram. Shop manual says rtv around 3 water ports. I'm assuming the 3 my fingers and thumb are pointing to? But what about all those tiny holes? Nothing seals them?
  4. M

    Testing thermostat with torch

    Any idea what these tiny little seals around the small water ports are? Nothing is listed for that in the parts diagram.
  5. M

    Testing thermostat with torch

    I pulled the head. Looks pretty good to me. I guess I'll drop the lower. Here's some pics with head off. Anyone know if o rings for head are reusable? Also seems to be some kind of seal around each tiny water opening? See photos
  6. M

    Testing thermostat with torch

    New thermostat in. Same issue. Removed plastic thermostat housing from head. Started engine. No water coming out of gaping head hole. Just steam??
  7. M

    Testing thermostat with torch

    I know I should drop it in water but any harm heating the end of the thermostat with butane torch to see if the tip moves?
  8. M

    2001 johnson 35 hp 3 cylinder

    Thank you
  9. M

    2001 johnson 35 hp 3 cylinder

    I looked at the parts diagram for my model number. No tip shown. Only the one built into the brass thermostat
  10. M

    2001 johnson 35 hp 3 cylinder

    So the black flexible tip on one end of the thermostat is normal?
  11. M

    2001 johnson 35 hp 3 cylinder

    I put water into both the large canal where the screwdriver is pointing as well as the small rectangular area using a hose to put the water in there. Both tests resulted in the water quickly making it's way down and out the prop hub. Sound promising?
  12. M

    2001 johnson 35 hp 3 cylinder

    Is that tip supposed to be attached to the thermostat? Would that make it stick closed?
  13. M

    2001 johnson 35 hp 3 cylinder

    I pulled the thermostat assembly apart. Found this loose pin. See pic. I put the brass thermostat in my vice and applied heat to the button end and observed no movement. The nipple coming out of the thermostat is like black in color and flexible . I don't see how the tip that is loose connects...
  14. M

    2001 johnson 35 hp 3 cylinder

    Not yet. I was going to start by replacing the thermostat assembly
  15. M

    2001 johnson 35 hp 3 cylinder

    Good points but this motor has been on a stand in my heated garage for a week or so.
  16. M

    2001 johnson 35 hp 3 cylinder

    Thank you. I removed the thermostat assembly but haven't checked flow yet with it out. I'll report back later in the week. Finally got above freezing in nj so I was able to spend a little time on it today
  17. M

    2001 johnson 35 hp 3 cylinder

    So bought this motor last week. Former owner said last time out the overheat alarm sounded. He shut it off promptly and put her on the trailer. Water pump is pumping water from the telltale fine. I checked compression 120 psi even all 3 cylinders. I started it up on my stand and after running...
  18. M

    Yamaha 50 hp 2 stroke prop seal depth

    Thanks for that. I appreciate it
  19. M

    Yamaha 50 hp 2 stroke prop seal depth

    Ok I do see 2 lines on the shaft where the seals were but not deep at all. Can't feel them with your fingernail. Maybe I'll set them deeper so it's on a fresh part of the shaft. Thanks
  20. M

    Yamaha 50 hp 2 stroke prop seal depth

    Yamaha 50TLR
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