Stalling/Very rough

[Hogan29980]

I have a TYN T264 that after around 20 mins when tractor gets warmed up begins to get very rough idling and eventual stalls out. Tractor has about 200 hours, new fuel and air filter installed but didn't help, any help would be appreciated.

 

[Eagle1]

Vent in fuel cap ( or how ever your tank is vented ) clogged?
Floating debris in tank clogging the fuel flow?
Fuel line collapsing once warm?

First few things I would check, fuel vent is easy once start to idle rough open the fuel cap to let air in and see what happens

 

[MountainBuck]

According to the troubleshooting section page 4-25 of your T264 tractor's manual it could be:

Poor fuel injection
Faulty injection pump
Wrong valve clearance
Wrong idle setting
Faulty injector

 

[Mike1955]

According to the troubleshooting section page 4-25 of your T264 tractor's manual it could be:

Poor fuel injection
Faulty injection pump
Wrong valve clearance
Wrong idle setting
Faulty injector

Mountainbuck a lot of things could cause poor fuel injection. And this is after a warm up…? These trouble shooters give you the sleeve out of their vest.

 

[mike0000]

Does that model use an electric lift pump? If, so it’s worth check its functionality. Sounds fuel related.