Bulb

[Karotoms24]

After fishing for 30 minutes. I must prime my bulb almost every time. What is causing this??

 

[Karotoms24]

After fishing for 30 minutes. I must prime my bulb almost every time. What is causing this??

This is happening on a tohatsu. 9.9. Four stroke

 

[MattFL]

Is it a 2-stroke / 4-stroke, and if 4-stroke is it the carburetor version or the EFI version?

 

[Karotoms24]

Is it a 2-stroke / 4-stroke, and if 4-stroke is it the carburetor version or the EFI version?

2019 fourstooke

 

[Karotoms24]

2019 fourstooke

I have done what one man suggested. To isolate the problem. I disconnected the fuel line to the motor. The bulb is staying hard now

 

[pvanv]

I take it this an MFS9.9E. That's EFI. Of course, the fuel line is under suction when running. So the bulb might get soft. Not an issue, and the motor should continue to run OK

 

[Karotoms24]

I take it this an MFS9.9E. That's EFI. Of course, the fuel line is under suction when running. So the bulb might get soft. Not an issue, and the motor should continue to run OK

The problem is 30 minutes after fishing the motor won’t crank and I must go thru the whole process. Priming the bulb the engine slow starting g. But you are right once engine is running I could run it all day.

 

[pvanv]

Probably a leaky o-ring on the fuel hose.
I am sure it cranks... just doesn't start.