I have ex mark laser z 28 hp kawasakI and all switches have been bypassed. The brake switch has started t9 act up and having to wiggle wires to get to start but recently the wires used t9 bypass switch got hot popped fuse now it won’t crank with key but can jump solenoid but engine gets no fire. The clutch will engage just putting that in there. It has new key switch also. Anyone have any ideas what could be wrong?