Mercury 50HP EFI 4 Stroke Low RPM stalling

miltonboater

Recruit
Joined
Jul 25, 2013
Messages
3
2006 50HP 4 stroke EFI

After several trips to the certified mechanic and much$$, they now tell me it's the injectors. Getting ready to send them off for cleaning. Does this sound right?

Engine starts fine and idles though somewhat roughly. If rpm's are run up to +/- 1400 to 1600 the motor will vacillate as much as 200 rpm and die. Will start right up and do the same thing. After it's run for a time at higher rpm, these symptoms get somewhat better and the motor will not usually stall.

They have hooked it up to the computer which initially indicated there was too much air in the mixture. They replace the throttle body. On the next trip in, they replaced a solenoid valve. They have had the computer hooked up as the motor sputtered and quit and say it shows no faults. Their next "guess" is the fuel injectors.
 

barnicalbill

Cadet
Joined
Nov 22, 2003
Messages
15
Re: Mercury 50HP EFI 4 Stroke Low RPM stalling

Hi I have the exact same problem with my 2008 40 hp efi big foot...please let me know as I have been chasing this issue ,just as you have..THANKYOU in advance..BARNICAL BILL
 
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