Mustang 2054 Starting problems

[Rhinopower81]

Hi guys, I'm over in the UK, I have a 2016 Mustang 2054 with a Yanmar engine. It needs a shot of "east start" ever time I need to start her, even if it's been running a while. Once started she runs as normal with no smoke or lack of power.
I've changed fuel filter, cleaned fuel lines and changed the lift pump.
Any ideas?
Thanks

 

[Firefighter]

so It doesn't start & shut off ? Just Cranks? Your Lift Pump Is Electric Correct? Make Sure It is Pumping
take line off at filter base you should have a good supply of fuel from hose If u have a good supply, Check voltage at the
white wire at fuel solenoid, should have 12 volts only during cranking