Starting (not) issue

[malxwal]

Recently fitted the recon kit to the starter and a new battery, and all was fine for about a month.
Now same symptoms, occasional no go.
Always used to start if jumped off a running vehicle, but not so tonight.
What are the other faults people have experienced ?
I'll check the earths and starter function tomorrow in the daylight, also the inhibitor switch connections.
Any pointers welcome.

[malxwal]

Starter A1, starter relay fully functional, main power lead and solenoid switch lead continuity tested good, all fuses tested.
Appeared to be no voltage at plug to solenoid when ignition switch turned to start position.
Had a strip and clean of the gear selector switch plugs etc, then was running out of daylight and the will to live, so shorted the starter so as to get her home.
Now will start again, but not guaranteed.
Does anyone have a wiring diagram, or a link to one ?
Noted that the signal incoming to the starter relay was always at 8.6v when the ignition key was in the run position. Will check that again tomorrow with the thing in "actually starting" mode.
Does the inhibitor switch knock out the signal to the starter relay ?