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2002 Johnson 40 hp 4 stroke EFI fires up and stalls

Felkan

New member
Good day all,
Recently purchased this motor and installed on my boat.
Having issues to get it running, it cranks over, fires up and immediately stalls.

Following verified:

1. 40 PSI fuel pressure at the fuel rail holding for at least 10 sec.
2. When turn the key on I can hear fuel pump running
3. Have spark on all 3 cylinders
4. Have new fuel in the tank
5. Motor fires up and idles on any of the 2 cylinders, found out when checked for spark and removed spark plugs, once spark plug installed in the cylinder the motor will fire up and stall, spark plugs are wet with gas when removed.
6. Compression on all 3 cylinders is ~180 PSI

Your feedback much appreciated,

Thanks
 
That is a Suzuki built motor.------Best to visit a dealer and have it hooked up to a computer to see what is going on.
 
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