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  1. gbak

    DT75-88. Oil level switch & monitor gauge, not working!

    When I connect the gauge to the oil level switch, all four (three green and one red) lamps are on! The lamps are always on, no change if oil level is high or low. Can anyone tell me how the lamps and switch should work? It should be possible to beep the oil level switch? If the oil level goes...
  2. gbak

    DT75 -88. Temperature sensors, how do they work?

    There seems to be two different temperature sensors on my motor. The cooling water sensor in the cylinder head have been disconnected, and is also broken (black plastic moulding). The engine temp sensor in the cylinder block is connected and seems to work (stainless steel body) I was thinking...
  3. gbak

    DT75 -88. Should I glue the engine holder gasket or not?

    I'm worried that the new gasket will leak as the mating surfaces are pitted and not as good as I want them to be. The gasket is a genuine Suzuki gasket. Should I add a thin layer glue on the gasket or is it better not to glue the gasket? I have ordinary RTV silicone and Permatex Form-A-Gasket...
  4. gbak

    DT75 -88 Trim/Tilt pump squeaks when raising, see video.

    Under my renovation of the motor I opened up the trim/tilt assambly, for and replacement of o-rings & oil. I cleaned up the motor/brush but did not open up the servo pump itself. The trim/tilt unit works fine, but when raising the motor, the pump is working hard and a squeaking sound is loudly...
  5. gbak

    Suzuki DT75 -88. Crank installation questions!

    The powerhead is now ready for installation, but I'm affraid I might have done two misstakes. Do I have to open up the powerhead to correct my misstakes? Circlip in piston: My outboard shop manual tells "...circlip opening should face directly up or down" I missed this, and now the circlip...
  6. gbak

    Broken temperatur cooling sensor DT75, is it a PTC resistor?

    My cooling sensor (the sensor mounted in the cylinderhead) is broken! As it gave intermitent ohm valures when measuring, I opend up the molded sensor body and below is what I found inside. Looks like some kind of mini glas PTC resistor inside the molded plastic tube. I tried to solder without...
  7. gbak

    I forgot to check the piston ring end gap before installation! DT75-88

    I forgot to measure the piston ring end gap before installation. Rings are original Suzuki +0.25/+0.50 from Browns Point. Will the rings have sufficient end gap from factory, or does the rings need to be filed? Don't want to pull the pistons out if it's not really needed. Took 5 hours to get...
  8. gbak

    Project DT75 -88, replace a scored piston! Need assistance from you forum gurus!

    I recently bought a Suzuki DT75 -88 (cheap), the motor had a scored piston (the upper one), the plan is to fix the motor and use it om my boat next summer. I'm a newbee on boat motors, so I'm hoping you experts here can help me and guide me in the right direction! I don't know the history of...
  9. gbak

    1988 Suzuki DT 75. Can a cylinder be bore to overdim without re-sleeving?

    I bought it cheap from the seller that said the motor just slowed down and then stopped. After cooling down for 30 min he could drive the boat to a marine shop. The shop removed the head and found that cylinder no 1 was scored. The rest of the motor is in a good shape and it have been in fresh...
  10. gbak

    DT 75, Compatible lower units? Pls answer asap!

    I have a DT 75 from -83 with a very bad lower unit (gears/dog clutch are worn out). Today I found a DT 75 with a broken piston, but a fresh lower unit from -88 or -89. The seller will hold the motor just a couple of hours for me! Is it possible to just swap to the newer fresh lower unit? Are...
  11. gbak

    Worn clutch dog Suzuki DT-85, can it be welded?

    Recently I did opened the lower unit for a change of seals. I noticed that the clutch dog was worn on the reverse side. Is it possible to weld the edge or do I have to get a new clutch dog?
  12. gbak

    Shift rod have loosen from shift cam. Suzuki DT75 -83

    Hi! I'm new on this great forum. I'm a newbe when it comes to outboard motors, but I have quite some experience with chevy V8's since I'm a lucky owner of a -71 Corvette. So with a little help from you guy's........... As I'm situated in Sweden with an old Suzuki DT75 motor from -83...
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