[bestgenman]

Guy, we talked via phone about your solenoid but I want to add some other info that might help diagnose your problem.

If you hold the solenoid plunger in and crank the engine it should start.  It needs fuel under pressure of about 5psi to the injection pump (that's the device with the steel lines going to the injectors).  If fuel is not there it won't start or will run starved for fuel.  Filters, both primary and secondary (if you have both, some do not) electric lift pump and fuel lines all affect fuel delivery.  It's a process of elimination, check pressure, replace filters, inspect lines and fittings.  Do not assume a line is tightly attached to a fitting because it is not leaking, it may be allowing the entrance of air which causes rough running or low power.  Some lines use fittings similar to a hydraulic hose and yet others are hose slipped over barbed fittings, these are the most problematic. 

Richard had a smoking problem related to low fuel pressure of the electric pump, when changed, the smoking disappeared if I remember correctly.  So, check all the above.  The engine must have air to breathe so inspect you air filter as well.  If it is restricted, the exhaust will show signs of black smoke indicating improper air/fuel ratio.

you have my number, feel free to call