Question about my L4150 engine idle.

[MichKubota]

Service manual for L4150 describes a Idle Compensator mechanism which controls idle speed. Looks like the two speed idle operation is normal for this tractor. See attached.

 

[kuboman]

Service manual for L4150 describes a Idle Compensator mechanism which controls idle speed. Looks like the two speed idle operation is normal for this tractor. See attached.

Well thanks for that info. Learn something everyday. Seems like a good idea.:thumbsup:

 

[NJDonzi]

Great info guys. Thanks for all the replys! Also thanks for the service manual page posting.

This site is great...

 

[Bobm]

All of the earlier L-3 series (L3350 / L3750 / L4150) have, for lack of a better term, a cold start, high idle throttle positioner. You've described its functionality perfectly...start in colder conditions, idles high, then automatically drops to normal idle after a few minutes... as mentioned, akin to a gas engine with automatic choke. My 1985 L3350 had this feature, but my 1998 L5450 (both L-3) lacks it.

 

[Willl]

My Deere does the same.

 

[nightowl490]

My L4150 runs faster with faster idle at cold start then backs off. It is normal operation! I believe it's in the WSM but as far as I know this is all good!