89 johnson 30hp choking/stalling when warm. need second opinion please

[tricks666]

problem fixed, thanks

 

[Haffiman]

Re: 89 johnson 30hp choking/stalling when warm. need second opinion please

Lack of fuel is easy to test.
Either keep on pumping the bulb when problem occurs - if ok, faulty pump or air-leak in the system.
Pull out the choke/primer - if ok/better, lack of fuel through the main jet, clean carb.
Spray a 'mist' of 2% fuel/oil mix straight into the carb when at full throttle. If OK, lack of fuel.

 

[tricks666]

Re: 89 johnson 30hp choking/stalling when warm. need second opinion please

Yes I have tried to squeeze the bulb whilst this has been happening and still choking out

 

[Haffiman]

Re: 89 johnson 30hp choking/stalling when warm. need second opinion please

Then you have the other two tests to perform, they somewhat 'bypasses' a carb problem.

 

[tricks666]

Re: 89 johnson 30hp choking/stalling when warm. need second opinion please

ok ive taken it back to the river
and got my mate to sit in the back and pull the choke when it starts to choke and nothing still wants to choke and die.
sprayed some fuel directly to carb when in full throttle and it lowers rpm then wants to die. when i spray when its choking same thing keeps stalling.
so does this mean its not the carb and indeed be the crankshaft seal

 

[Haffiman]

Re: 89 johnson 30hp choking/stalling when warm. need second opinion please

Sure you got spark on both cylinders and at the correct time?
Use a timing light on the flywheel and check both cylinders, or use a spark tester and hook up BOTH at the same time. Spak should jump 1-2-1-2.. and never both at the same time.

 

[tkdunn]

Re: 89 johnson 30hp choking/stalling when warm. need second opinion please

I had this problem and it was a bad power pack.