Engine will not stay running unless i pump the ball...
I have a 96 evinrude 150 that seems to have a timing or a fuel problem. she will not stay running unless i squeeze the fuel ball every 15-25 seconds. i have a clear fuel filter that i can watch the gas disapear from when i rev her up and not be replaced. i have all new fuel lines,filters and clamps. also the pump makes no noise when i turn the key to the first position...
Re: engine will not stay running unless i pump the...
Going to sound silly, but is the fuel filter properly installed? I've seen this happen when the fuel filter was installed upside down. In other words, the arrow showing flow of fuel was pointed in the wrong direction. If the fuel ball is collapsing, it could be a vacuum lock problem. Try it with the gas cap loosened and see if that helps - it could be 'too airtight' and creating a vacuum, which cuts off fuel supply.
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depending on how often you used the engine
problems include :-
dirt ,corrosion, rubber bits in the carby---fix is to have the carby professionally cleaned and overhauled
rubber from the fuel hoses disintergrating and causing problems in the carby, the pump valves
the rubber diaphragm in the pump is failing and not producing enough fuel to keep the motor running
the vent on the cap of the fuel tank is still closed creating a vacuum in the fuel system
it would be a good idea to replace all rubber hoses from the tank to the carby, overhaul the fuel pump, and have the carby professionally cleaned and overhauled
if you pull off any rubber hose and get a black stain on your hand ,that is rubber failing.
I have a 150 the choke should be in the same place as mine .......when you are standing on the boat looking at the motor it should be on your left side by the carb's..........should be a round black thing with a little red lever on it
The first thing is fuel delivery. Check and fuel filter for crud, next if thats ok check your fuel line for loose connections that would allow air into the line. ( is your pump ball hard?) if not check to see if anti siphon valves in the line which are on either side of the ball. To check this problem remove tthe line from the tank and the engine, and with the end that came from the engine held up high have some one let the pressure off the end that went into tank and then while doing that u lret the pressure off the connector that went into engine. Resusts are if valves are working Very little gas will flow from the line. GAS BE CAREFUL!!!. Next is cloged carb , then possibly electrical failure in high speed circuits. Check compression and clean or replace plugs is another couple ides. Chas
hi obviously a fuel fault someware / when motors are winterised the fuel system is usualy emptied, this causes gaskets and diaphrams to dry out and split try it with the tank filler off /replace the diaphram in the carb and i am pretty shure that will solve the problem /nb / as this motor has stood for a time and does not do much work /outboards love work check the water pump impellor and put a spoonful of oil in a full tank of gas hope this helps merlin v12
recheck float level as well as needle and seat for sticking and or damage, just crack line to bleed air , and eventually it self bleeds anyway... also unless you replaced with new floats check float weight with a float scale to see if floats are saturated or have fuel inside making the heavy and inaccurate ...
are you positive that all the fuel lines are good.and the primer ball is good? i have had a problem also like that and it turned out that there was some dry rot in the line that would make it **** air.this may be your problem...