L4150 power loss

[Redwing]

First try of the L4150 I am restoring having a problem with power loss. Tractor starts and runs fine then starts to loose power, if I let it idle for a while I can get power back for a short time. Motor is not running hot. Could this be a fuel issue or maybe air intake? I haven't gotten into these systems yet.

 

[North Idaho Wolfman]

Sounds like fuel problem, Unless the air filter is plugged up.
Have you changed filters?

 

[Redwing]

Just finished replacing fuel filter and cleaning out the fuel lines, seems to be running better but need to work it tomorrow to check for sure. Thanks for the reply.

 

[retiredlawnboy]

I had a similar issue with my M6800. It would idle or at close to full throttle. Turned out the fuel pump was worn out after 2900 hrs.

 

[Redwing]

Fuel line and filter was problem. Running fine now.