Runs and Dies instantly

[Austindish]

I have a 1978 chrysler 75 hp.
I took the boat to the lake lost my fuel tank it broke the female connector to the tank so i had a extra and but no connector. So i had a passenger to hold the fuel line to the broken connector on tye tank that was not lost. It rand for about amile and died. Now i cannot get it started. Carbs has been cleaned, its in time.
Itll start and then die instantly. Sometes it will backfire.
The fuel pump is pumping fuel to the carbs.
What could be the issue?

 

[alldodge]

Check for spark

 

[Austindish]

Getting good spark bright blue

 

[alldodge]

Try a very (note very) small amount of starting fluid in the carb.

My thought is you have a clogged jet
Either that or the motor lost compression

 

[Austindish]

Try a very (note very) small amount of starting fluid in the carb.

My thought is you have a clogged jet
Either that or the motor lost compression

Ive cleaned carbs but ill try the starting fluid then check compression

 

[jerryjerry05]

Take the fuel pump apart???

 

[Austindish]

Jerry

Take the fuel pump apart???

Checked all that

 

[Austindish]

Ive cleaned carbs but ill try the starting fluid then check compression

Compression is low cyl1-130 cyl2-0 and cyl3-30

 

[alldodge]

Reed valves would be my guess

 

[Austindish]

Ok i took the head off and it ended up being blown head gasket

 

[Austindish]

Ok i took the head off and it ended up being blown head gasket

 

[Austindish]

Update

 

[racerone]

??----Reed valves have nothing to do with compression in the cylinders !