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    M90A idle?

    I'm trying to tune the carbs on my 90 (non TLDI obviously) as per the factory service manual and wondering if there is any advice. I did the link, sync and timing as per the manual, now onto setting the idle and the mixture screws. The issue I have is that I can't get the engine to idle at...
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    3AC723260 - Touch up paint

    Hello, I am unable to get touch up paint for a Tohatsu motor in Canada - None of the local dealers stock it and cannot bring it in due to dangerous goods regulations, and it cannot apparently be shipped from the US for the same reason. Has anyone ever found paint codes for AquaMarine blue? Any...
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    NS90A runs on two cyls

    Hi all, I took a chance on an old NS90A and I'm kinda stumped. I have it on a test stand, and it runs on the top and bottom cylinders at all speeds. It will sort of idle and every 5 seconds a big pop comes out the exhaust, like the fuel charge for the second cyl is getting pushed into the...
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    Silver and blue Nissan paint codes

    Hi all, Does anyone know the paint code, or a reasonable approximation, for the Nissan silver used on hoods, and blue used the rest of the motors from the late 80s and early 90s? I imagine factory paint is long NLA. Thanks,
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    NS90A oil injection systems - Automixing vs. individual cylinder injection

    As far as I can tell, there are two oil injection systems that were used on the M/NS90A. The earlier system is what I'm used to seeing on snowmobiles - The oil injection pump outputs to three lines. Each line feeds into each individual cylinder, plugging in above the reeds and injects oil into...
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    NS70A2 timing issue - Reference point error?

    Hi all, long time reader, first time poster. Beware, this may be long, but I will try my best to make it clear. I have a NS70A2. It's never been great at idling but the last few years it's gotten worse. So, I have slowly been going through everything methodically and now am into the...
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