Over the last two days I scratched around and installed a relay at the end of the starter solenoid wire . I attached a larger automotive relay to the battery tray and ran my B+ from the battery through a fuse holder ( 20a) to the relay . Grounded the - to a 10mm bolt at the rear of the tank . The feed wire to the solenoid connection . The original solenoid wire energizes the new relay and the current goes through the larger relay . This will stop all relay problems and taxing the factory wiring and connections . I have done this a lot on equipment with Lucas starters that burn up neutral switches , solenoids , etc.
P.S. I used 16 ga wire to go from the battery to relay and relay to solenoid .