CO trim adjustment

eightpilot

eightpilot

Expert
Joined
Mar 17, 2009
Messages
437
Reaction score
142
Points
928
Location
Mosinee WI
Country
USA
Snowmobile
2021 Thundercat
LOCATION
Mosinee WI
Just finished my trim adjustment and it seems to be running better. I set it at 10 for now and will see how it performs after a long trail ride. My question is does this trim setting affect the fuel mixture at all rpms or just at idle? I am assuming it is a base line setting so it should adjust the fuel level at all rpms... any thoughts? Thanks 8
 
my understanding is its a lower speed adjustment like a pilot yet...
 
eightpilot said:
Just finished my trim adjustment and it seems to be running better. I set it at 10 for now and will see how it performs after a long trail ride. My question is does this trim setting affect the fuel mixture at all rpms or just at idle? I am assuming it is a base line setting so it should adjust the fuel level at all rpms... any thoughts? Thanks 8
Click to expand...
Don't know the total effect---last year when i first got my nitro,when I started it cold it would couph and back fire & finnally run.Also while riding,when I'd back off the thumb it would "POP" quite a bit.After setting the CO to+10,it starts & runs great & doesn't POP.TECK.reasons ???I just know it runs better. ;)!
 
Yep. Its fairly simple once you ground out the diag wire.
 
It would appear that this adjustment richens the fuel mixture a bit and thats what I'm after.

The sled runs lean on cold start-up and has the off throttle pop many people talk about.

mj
 
search n here , there are threads with step by step instructions thanks to tyers!
 
Let me know how it works for ya... 8
 
You must log in or register to reply here.

Similar threads

B
Idle
2
Replies
22
Views
2K
Alexandre Cote
A
J
CO adjustment info?
Replies
2
Views
724
jamesc
J
mx1500
Hard starting 09 nytro
Replies
13
Views
2K
09nytro
09nytro
DamonJones
Another Look at CO setting.
Replies
4
Views
4K
DamonJones
DamonJones
snowmaaan
Nytro MPI Stage I Fuel Setting Questions
Replies
9
Views
2K
snowmaaan
snowmaaan


Back
Top