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    2003 90HP 4stroke TPS issue

    Input voltage is 4.9v. I guess I’ll but a new TPS and hope that fixes the problem.
  2. V

    2003 90HP 4stroke TPS issue

    I have a 2003 Mercury 90HP 4stroke model number 1F90412AD. I’ve been having some intermittent lack of power issues/rough idle issues. The boat has never idled quite right since I’ve had it.This weekend I cleaned all 4 carbs, sync them up and set the throttle linkage to spec. I own a FSM so I did...
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    2003 Mercury 90HP 4 Stroke Grounds

    I have been having intermittent run ability issues with my outboard. Intermittent lack of power and every once in a while bog on acceleration. It could be 5-6 outings between issues and generally the issue will only occur part of the day. I was looking at connections and grounds tonight when I...
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    2003 Nissan NSD40B spark plug wire

    I have a 2003 Nissan NSD40B TLDI that has a misfire under load. I checked resistance on all 3 spark plug wires. Cylinder 1 and 2 measure about 3k ohms. Cylinder 3 measures open. I would like to buy 3 new cables but I can only find them with the coils. Are the ignition cables available without...
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    2003 40hp TLDI issues

    I did fix it. I bent the thicker piece of metal on top of the exhaust leaves down just a hair and that worked. The engine has ran great for a year and a half now.
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    2003 tldi 40

    Good evening I have a 2004 TLDI NSD40B. The engine seems to run well but while cruising at above 4800 rpm it flashes all 3 warning lamps. When put in self diagnose mode and the code I’m getting is cylinder 3 ignition coil fault. When codes are cleared they return immediately return after I run...
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    2003 40hp TLDI issues

    I am helping a friend attempt to repair his boat engine. I have experience on older carburetor 2 strokes. He took it to a shop and they gave it back no change due to not being able to repair the engine. His original problem was the boat wouldn't idle and when it would stall it would restart and...
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