turf tracer hp blowing 20 amp fuse as soon as i turn the key

[cdunahee]

so my turf tracer is giving me fits. i have replaced the switch which got burnt up. i also replaced the starter solenoid. the mower is putting 40-60 amps through the fuse. the only ohm reading i am getting is on the yellow to the solenoid which is .15 . however when detached and bypassed it still blows. the only other thing the grounds and hots go to commonly is the OPC module. does anyone know how to test this or have any ideas because i am stumped.

 

[mechanic mark]

Make sure all wiring is tight & secure, especially ground wires, try moving wires by hand at all connections starting with battery.