motor cutting out

film495

Petty Officer 1st Class
Joined
Apr 8, 2009
Messages
294
3 hp evinrude 1968 lightwin

cutting out - started about every 20 minutes and after running for a couple hours, I ended up rowing back to the shore. so, I check the plugs and they look like crap - so, I put new ones in and it will start again, but seems to still cut out. So, I get rid of the gas and make sure I'm running clean gas - and it still seems to cut out. So, I replace the line from the tank to motor - cause it seemed to be like if I kept squeezing the primer bulb the whole time it would not cut out. And it was the original line from the 60s so - I'm sure not ethanol ready. So, still cutting out - and I take the cowling off and squeeze the bulb hard and can see gas coming out inside the motor and upon closer inspection - the gas lines are goo - so, I get new lines and put them in and then the motor will not start - and I assume I have grossly flooded the motor and pull the plugs out for it it air out for a while and then after about a half hour I try it again and it does start and runs for about 20 minutes and does not cut out during this time. So, my question is - was the leak/crack in the fuel line the cause of my issue - or when I go to run the thing again, will it cut out again? When it cuts out - it is like a switch is turned off - and it dies right out - but, I have been able to save it a few times by either pulling the choke out or getting right on the primer bulb. Any ideas on this one?
 

17bellboy

Cadet
Joined
Mar 15, 2009
Messages
21
Re: motor cutting out

I'd replace the fuel pump if it was me. Having to pump the primer would tell me it's the fuel pump
 

film495

Petty Officer 1st Class
Joined
Apr 8, 2009
Messages
294
Re: motor cutting out

after I fixed the fuel line with the leak under the motor cowl the primer bulb now seems to stay solid.; just not sure if that was what was causing the motor to cut out. Will probably find out with more live action testing.
 

Rick.

Captain
Joined
Jul 30, 2006
Messages
3,740
Re: motor cutting out

I had a new to me 4 HP last fall. It would run like a champ but about every 10 to 20 minutes it would abruptly stop with no warning. I would give it a little throttle, one pull and away I would go but the cycle would continue. I put in a carb. kit this winter and it now just keeps on going, and going, just like the energizer bunny with no stall issues. Given your gas line breakdown I would suggest you really need to clean your carb. and if your going to pull it apart it makes sense to put a new kit in it at the same time. At the top of this forum, look at "Top Secret File" and there is good instruction on how to clean your carb. and then set the needles. Best of luck. Rick.
 
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