L2850 with 400 hrs smokes

[nickythewhitedog]

Previous owner did not maintain the fuel filter. Filled with alage.
Plug the injectors and loaded up the exhast system.
I have replaced the injectors and drained the fuel tank, refilled and replaced all filter. Replaced the thermosate and coolant. The temp gauge gets up to the mid point now but i still get lots of smoke when running constant RPM's
Any Ideas?

 

[SpudHauler]

My experience with gas lawnmower engine when overfilled with oil, would smoke huge amounts. Then when the problem of oil level was corrected it took quite a long while for the exhaust pipe to clean out and would smoke quite a bit until it did. Perhaps you have the same kind of condition, but with the exhaust being full of raw diesel. If so it should clear in 2 or 3 hrs of running.

 

[kuboman]

Smokes??? black, white, blue? What color is the smoke and how much. My guess is you have worn fuel system parts. IE: injectors and or pump.