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  1. O

    DT40C tuning problems

    I'm the guy who just put new pistons & rings in my motor and am having problems running it. It ran perfectly on land, so after 2 hours I finally got to running in seawater. I had to fiddle with carby but ultimately could only keep it running by manually controlling (and adjusting) the chock...
  2. O

    new pistons & rings DT40C

    I've just rebuilt my manual start 40hp and although very stiff, it seems to be running fine. Its only run for less than one hour on the hose and when I put it into salt water to try and start it, it keeps stalling. Someone told me that I need to run-in the engine for a couple of hours on the...
  3. O

    Surging evinrude 1978 115hp

    my evinrude starts ok and went my evinrude starts ok and went well for a few minutes then started surging but still ran ok in neutral. I'm hoping it is a fuel tank issue because it was full of crap.
  4. O

    DT40 fuel problem maybe

    "my motor usually starts first "my motor usually starts first pull with chock on and throttle open. However, if it doesn't, then I need to wait about 10 minutes before re-trying it or else it wont fire at all. Wondered if it was getting too much fuel and needed time to drain ? What can you...
  5. O

    DT40C missfiring under load

    "my motor starts and runs perf "my motor starts and runs perfectly on land (with hose etc)at 5,000rpm but when under load in water starts intermittant missfire at about 12-15mph whilst TRYING to get boat up on plane. Have rebuilt carby and fuel pump but no difference. Is it CDI unit thats...
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