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  1. 2

    T-stat change in 2001 75 horse elpto?

    Boat motor runs ice cold, I can touch any part of the motor after running at high idle on the muffs for thirty minutes. Seems the t-stat must be stuck wide open. Looks like there is a housing on the back of the motor, kinda up high and on the left side of the spark plugs. is this the t-stat...
  2. 2

    Water temperature at squirter

    Seems maybe my t-stat is stuck? Water coming out of the squirter is just slightly warmer than the lake water temperature. Brother in laws Mercury has warm/hot water squirting out of it. Is this right? This is a 75 HP Mercury ELPTO on my pontoon. Seems to run fine, just curious......
  3. 2

    Prop help please

    My current set up is this- 18' foot pontoon with a 75 horse Mercury ELPTO. Prop is 13.75"x15 pitch. I've tried to use the prop calculators I found on the internet and get widely varying results. I know about the RPM vs MPH correlation, however I do not have a working speedo on my boat, so that...
  4. 2

    2 stroke versus 4 stroke

    This is really more of a historical question rather than present day. Seems most of outboard motors from early times to recent were all 2 stroke. Was 2 stroke more reliable, maybe lighter, less complicated? We know they were not cleaner burning, or quieter, that's for sure! Modern 4 stroke are...
  5. 2

    Carpet grows algae!!

    At the rear of the boat where spray/waves etc leaves the carpet damp for extended periods of time, the carpet will begin to grow algae and turn green. Cleans up with a power washer after getting home, but I believe algae is still dormant in the fibers because it seems to return so rapidly...
  6. 2

    Two stroke oil leaks from fill cap?

    With motor tilted all the way up, oil will dribble out of the top of the reservoir, even with the cap fully tightened. Cap seems to "jump" threads if overtightened. but does not appear stripped. O-ring looks good, should I replace? This is on a 2001 ELPTO 75 Horse mercury outboard. Anybody else...
  7. 2

    How to verify correct rotation of impeller/ drive shaft DT 85 Suzuki

    Problem has been persistent overheating about 4000 RPMs. Lower RPMs it runs all day, hit 4000 and the alarm goes off. Pulled lower unit tonight, hoping to find something obvious. Impeller is nice and flexible, with no obvious signs of wear. ( it was replaced by a local boat shop upon my...
  8. 2

    DT 85 overheats

    New impeller installed by reputable shop. Thermostat tested, then ultimately removed with no difference. At 3500 rpms or less, runs all day long with no problems. At or above 4000 rpms, alarm goes off. Cavitation does not seem to be the problem, motor is deep in the water. This is on an 18'...
  9. 2

    newbie question- motor mounting height

    Hi everybody! Wonderful site here, have found answers to some of my questions without even posting! I just got a 2004 Voyager with an '87 DT 85 Suzuki motor. I believe the previous owner just threw this motor on it for a quick sell. Stripped prop hub, week water pump, carbs not running/ idling...
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