85 zn1100 headlight issues

Hey all,
 have a strange issues that’s popped up , when the bike is running and the clutch lever is pulled in the head light turns off , out of curiosity i bypassed the clutch switch and head light stays on . Now the neutral switch is causing the head light to turn off when the bike is put in first gear anyone come across anything like this?  Another issue which may be contributing to this is starting issue , I’m not getting a consistent 12v to the starter solenoid to activate it , one button push will be 3 volts next will be 1 and so on , every 10-15 pushes I’ll get 11-12v and the solenoid will activate . When it’s not getting enough voltage the round silver relay in the junction box just buzzes . Replaced all relax and the entire junction box with a known good one , replaced the reserve lighting as well .  Kind of at a loss any info would be appreciated