2001 mercury 250 efi choke/enrichener

[ebtide225]

Hello, i just recently noticed my merc was smoking more than normal. im a lil engine savy, so i pushed in the key (motor was operating temp) to enguage the enrichener/choke. nothing happened. no motor rpm difference at all. now i know why the motor doesn't start hard.lol.
can anyone tell me if the efi does indeed have a enrichener, & if it does, where might it be. all the merc. parts list doesn't even list one.
gregg

actually i just looked under the console. the wire for the enrichener (black/yellow stripe) is capped off under there. apparently this motor does not utilize an enrichener?

 

[Faztbullet]

Re: 2001 mercury 250 efi choke/enrichener

You are correct!!

 

[Dunaruna]

Re: 2001 mercury 250 efi choke/enrichener

That motor does not have a user operated enricher/choke. Pushing the key in does nothing, it is a feature of the merc ignition that is not used on an EFI motor.

The ECU controls the amount of fuel that is injected.

 

[ebtide225]

Re: 2001 mercury 250 efi choke/enrichener

thank you for the reply. it really didn't make much sense that an efi would have that animal. ok, now im still trying to figure out a the smoke, and sheen left in the water? motor even does it on startup, until it's up on a plane. reguardless how long at idle it runs. and WOW the fuel consupmtion is terrible for a clean hull.

 

[CharlieB]

Re: 2001 mercury 250 efi choke/enrichener

Get back to the basics.

Check spark
spark plugs
Compression

A fouled plug or no spark on one cyl or very low compression on one hole can cause smoke/sheen on the water.

Hopefully you can deal with it before it becomes an expensive problem.