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Recent content by stim

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    Tohatsu TLDI MD90A Sooty Spark Plugs

    Last summer I was trying to fix and diagnose some problems with my engine on this thread: http://www.marineengine.com/boat-forum/showthread.php?466248-Tohatsu-MD90A-surging-around-800-1000rpm&p=695407#post695407 I concluded that the diaphragm in my fuel regulator may have been broken which was...
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    Tohatsu MD90A surging around 800-1000rpm

    My Tohatsu surging revs when just engaged in gear. It is slight, perhaps a surge of 100rpm and with a frequency of every 1-2 seconds. At low rpm setting at idle it does not surge, at rpm above about 1300rpm it also does not seem to surge, certainly not at full throttle. I have done the...
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    Tohatsu MD90A replacement hoses (air rail etc.)

    Today one of the small hoses (the one from the air rail to the fuel regulator) on my air rail split and prevented me from starting the engine. I had only just stripped most of the fuel and air rail system to diagnose a starting issue (turning over but not firing - had to replace all of the air...
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    Tohatsu MD90A Vibration at low revs

    Hi, I have a Tohatsu TLDI MD90A From around 2001 which vibrates/resonates at slow speed (just once you have it engaged in gear and a hair higher RPM - between 800-1000rpm I would say). If I push further it disappears but it is right at the spot where I need to move around the harbour so is not...
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