KLF300B No spark and electrical issues (quad)

Sorry to post another electrical problem thread but... i have recently acquired a klf300 with no spark and when I connect a power source the neutral doesn't come on and no power seems to get anywhere, i get 5ish volts to the coil an ignition switch when i spin the motor (by hand) but the battery voltage wont get to the coil or front of the wiring harness? wiring looks fine, could a bad starter relay or starter circuit relay cause this? Any ideas greatly appreciated

Wiring diagram: https://cdn.instructables.com/FN3/VT...CS3T.LARGE.jpg

EDIT: I have also tested ignition and kill switches which seem to work

KLF300B No spark and electrical issues (quad)