i have a kubota l3400 that starts and runs for a short perion then just dies. i have replaced the fuel soleniod and bled the injectors. when i turn the ignition switch on i can hear the solenoit click and sometimes it starts buit sometimes i have to wait for another click before it starts. when it is running sometimes it just dies then othertimes i can hear the solenoid clicking very rapid then it dies. i just tried to bleed the injectors again but i couldn't get any diesel out of the injectors until the clicking started again could this be the injector pump or has anyone elese had this problem. thanks for any help i can get.