4hp evinrude problem

[runningbear888]

problem is the motor is hard to start and won't stay running.it just up and quit on a fella while fishing.Alaways started great.I have changed both coils,both sets of points reset gap to spec,changed both condensers,top crank seal bottom carbon crank seal and o ring and machined matching surface that the carbon seal mates to,both plugs and wires,use carb off of running 4 hp from a freinds motor,changed feul pump,also tried gravity feeding the fuel.Changed reed valves head gasket base gasket.compression is 123 psi.Sounds like a new motor rebuild but stillhave same problem.please help i'm not crazy

 

[oldboat1]

Re: 4hp evinrude problem

fresh gas? correct oil mix? tank vent open (or cap loosened if no vent)? hose or inlet blockage or hose collapsing? tank intake blocked? sounds like you have been pretty thorough.

 

[FlyBoyMark]

Re: 4hp evinrude problem

What altitude are you running at and are the proper jets in the carb for the altitude. Check for air leaks in the fuel system...proper heat spark plugs?

 

[Yepblaze]

Re: 4hp evinrude problem

It IS possable to get bad parts. <br /><br />Or perhaps during the instalation the points have become slightly oiled or dirty.<br /><br />Go back over electrical connections and grounds.

 

[my new fishmaster]

Re: 4hp evinrude problem

Sounds like fuel starvation the #1 problem with outboards. May as well replace all the fuel lines and clean out tank parts/valves. Hows the venting did you replace the fuel pump right does it leak. I have had the same problems with every outboard I have owned except the Honda well its a Honda. My Force started up great comming outa storage I replaced many parts including all new zippers for the lines and put QS fuel treatment in before storage. She seems to run fine now I am wondering if there was a sludge blockage in the tank?