I have a BCS mower with a Yanmar engine (Model No 3TNE82A ESA) 22kw 3cyl diesel. It willnot start consistently as the fuel solenoid is erretic (will open sometimes sometimes won't open). Engine is very easy sterted when getting fuel. Replaced solenoid and started once and ran for 5 mins then...
I am in Ireland and have a number of mowers and tractors
Mowers are kubuto and BCS(yanmar) and tractors are a vintage 60hp Nuffield (4cyl BMC) and a 48hp Massey Ferguson 240 (3cyl Perkins).
They are all tempremental and need coaxing to keep going.
Pat