If it has been 'sitting' for a long time...the 'pilot' jet in the carb can
easily get 'gummed up'.When this happens, it runs lean...hense it's running
only with the choke on. That is why its recomended to run your OB out of
fuel after use...especially if it won't be run for a while. simple 'carb
cleaner' usually doesn't work if it is plugged by the 'varnish type' build
up of gas just sitting there. These jets are quite small and effect low
speed use. May be something else...but this IS a frequent problem.>>
Help!
I bought a brand new Nissan 4HP 4-stroke motor last year and it was
very nice. Quiet. Started on the second pull every time. It has probably
no more than 10 hours on it at this time as i use it mostly for ramp
purposes. Up until last weekend it has been running perfectly.
Last weekend, though, i could not start it at the ramp. Not a
sputter... not a single sign of life. We had to test our sailing skills
and get out of the harbor under sail. Good practice but not something i
wanted to do again. The next day i went to play with it to see if i
could figure out what the problem was (right! I know outboards like Kobe
Bryant knows humility). When i went to start it up on the trailer it
cranked up on the second pull just like normal. I had no water hooked up
to it so i let it go only a couple seconds and shrugged off our
experience to some sort of anomoly.
Based on that succcess we went out again yesterday (Lake Pardee for
those of you in norCal... fishing lake, no waterskiers allowed... lake
level 98% of capacity and very clean). I went to start it up and it
started as expected, but....
When i pushed the choke back in upon warm-up it proceeded to die... i
pulled the choke back out to ensure that she would keep running ...
perhaps she needed to warm up a bit more... pushed the choke back in and
she died and would not start again. Showed no sign of life...
My novice thought is... fuel filter? Water in the line? I don't know
how that could happen but i suppose it could. I will attempt to replace
that myself if that is a probable cause but i thought i would throw it
at this group first as you folks are dialed on all aspects of the Monty
Life!!!
Thanks for your help,
Jeff
M17 #336
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