Logo
FULL SITE MENU

F25ELPT firing order

J

Jim mc

New member
Not sure why I didn't document the firing/wiring order for the spark plug wires last fall when I winterized the motor but maybe someone can verify the order the spark plug wires go back on. Right now I'm guessing the 3 coils are wired to the 3 plugs in the order that are on the motor. Top coil, top plug, middle coil , middle plug, etc. This motor was new last year so this is the first time getting the motor ready.
Thanks for any suggestions you can give me so I don't have to haul it 40 miles to the dealer.
Also, what's the best maintenance manual for these motors. I had a Seloc manual for my last motor but was not impressed with the in depth stuff.
 
mechanicman said:
Look on the wires that connect the coils. There should be numbers written on the white tags
Click to expand...
My older 75 HP Merc doe[FONT=Verdana,Arial,Tahoma,Calibri,Geneva,sans-serif]https://kwwl.com/news/top-stories/2019/05/29/iowas-mowing-law-protects-local-bird-population-during-nesting-season/have the numbers on the wires but so far I haven't found them. I might have to take the wire clear out and inspect one. That was a good suggestion. [/FONT]
 
Jim mc said:
My older 75 HP Merc does have the numbers on the wires but so far I haven't found them. I might have to take the wire clear out and inspect one. That was a good suggestion.
Click to expand...

I did put the plug wires back on in the order the coils are stacked on the side of the motor and it was right. That was probably why I didn't mark anything down when I winterized the motor.
Thank you to those who replied.
 
Back
Top