mercury black max 1978 2 stroke 150 hp v6

by Greg
(Calgary AB)

cold Engine cranks quickly but does not start. will start if using starting fluid. carbs rebuilt. new fuel,new squeeze ball, electric choke. new plugs and battery nearly new. once started and warm will start no problem. once cools down then same problem

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Aug 21, 2021
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starstarstarstarstar 		Xr4 2 stroke
by: Anonymous

I have a 2 stroke xr4 that is hard to start if I don’t follow certain starting procedures. To start mine After pumping up the bulb and chocking it I have to lift the fast idle lever all the way up before turning the key to start. I found out this little trick to starting these older motors. They are very picky.
Apr 18, 2021
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starstarstarstarstar 		Same issue. Ideas?
by: Anonymous

I have exact same issue. Identical.

Anyone have any thoughts?

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