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  1. R

    Water tube upper end

    This is an air cooled motor.-----Water pump only serves to cool the exhaust air coming out of the cylinder,
  2. R

    Yamaha 1999 15hp 4 Stroke Misfires

    Running on 1 cylinder?
  3. R

    Yamaha 1999 15hp 4 Stroke Misfires

    Check operation of the valves and valve clearance.-----Costs no coins to do so.
  4. R

    Water tube upper end

    Is this an air cooled motor??----Pintures of the cylinder?
  5. R

    2018 Mercury 40 EFI – rhythmic RPM surging at WOT after 5 minutes – video

    Clean the VST ??
  6. R

    Anyone know what on my outboard this came from?

    Is the material round ?-----Helicoil material is NOT round.-----One of your friends threw it in your boat for fun I think.
  7. R

    Anyone know what on my outboard this came from?

    The #15 spring is much , much bigger than what is shown in post #1
  8. R

    1959 Evinrude Impeller

    Just 1 seal on the driveshaft and 1 seal on the propshaft.
  9. R

    Is my Chinese Fuel pump Bad????

    Check tube INSIDE fuel tank
  10. R

    Is my Chinese Fuel pump Bad????

    serial number and what motor?
  11. R

    1959 Evinrude Impeller

    On a 70 year old motor I would replace oil seals.
  12. R

    1987 4hp Johnson remove engine cover

    ??----I would just put some extra oil in the tank.----Idle for 10 minutes.----Shut off fuel to carburetor.-----Let it idle till it stops.----Store motor in the running position.----Winterizing is complete.
  13. R

    need 70s 165 merc I6 or alternative

    Try----Kings prop ------Port Severn
  14. R

    This Outboard is killing me (Ignition issue) 1996 150 Faststrike

    Did you install the high speed jets into the new bowls??
  15. R

    1987 4hp Johnson remove engine cover

    Model number is ?----That might be a screw for the recoil.----Do not remove it.
  16. R

    7.5 S# 30221572 - need advice on changing the upper lower block gaskets

    Those 3 gaskets would have nothing to do with the motor stumbling from spraying starting fluid !!
  17. R

    7.5 S# 30221572 - need advice on changing the upper lower block gaskets

    Does spark jump a gap of 5/16" on both leads ?----There is no " head gasket " on it.-----There is no gasket between block and crankcase cover.-----Upper and lower crankshaft seals will need to be replaced.---Water pump impeller needs to be replaced.----Washer at the top of water tube might need...
  18. R

    2004 Mercury 90hp engine starts, stalls with in seconds.

    If it is a fuel injected 4 stroke , the clean the VST tank.
  19. R

    1992 Johnson VRO 60 HP not firing.

    Remove cowling.-----Have an assistant operate the small lever.----Observe motion of lever at the motor.-----Adjust idle stop screw as needed.
  20. R

    1992 Johnson VRO 60 HP not firing.

    That small lever is throttle in neutral only.----It is NOT a choke.-----Starting fuel enrichment is done by the electric primer valve.-----Key is pushed in and held in while cranking it over for cold starting.
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