Kubota 1703

[tim361]

Was using my Jensen 540 today and a few times over the course of a few hours the engine would bog down and it would chuck out white smoke. I’d drop the revs to stop it stalling give it 30 seconds to clear and then would be fine again. Only seemed to happen while tracking the machine around. While chipping it didn’t have any problems. Also ran the machine yesterday and it didn’t do it once. Its literally just had a full service and the tank flushed. Prior to me picking it up 2 days ago it had been sat in a dealers yard for 6 months not doing anything as the control box had failed. I bought it and had it dropped at TH whites who did the control box plus the full service and probably only ran for an hour or so there. Does anyone have any ideas of where I should start looking? 
cheers all

[maybelateron]

I have had exactly the same problem twice with my Jensen A540 turntable with the same Kubota engine. Obviously not when tracking as it is on wheels, but when under load chipping. The cause was the inline fuel filter between the fuel tank and the cartridge filter being block with crap/debris etc. Easy fix, replace the inline filter, and I carry a spare one with the machine. Usually no need to manually bleed the system, just remember to open the vent/breather knob on the injector pump.

[tim361]

TH white changed it twice, I’ll try again and see if that cures it. Thank you.