B7610 Hard Starting

[tony3542]

B7610 with 400 hrs.It usually starts pretty easy when cold.You can run it for 5 min. or more and cut it off.It will have to go through a complete cool down before it will restart.Important ---When it does start its a split second after you release the key.Hardly ever will start while cranking,only when key is released...Runs perfect when running after starting.Clean air and fuel filter...
How do you check/test fuel shut off Solenoid ?How do you test glow plugs?
Thanks Much