Ductape,
Awesome tractor! Look how proud it sits in the snow(!). Keep the battery charged, if you need to start it. Meanwhile, as Norm as suggested, get the volt/multi-meter out and do some testing. ...Also, if you can, post some pics of the light that keeps coming on, i had such a one and someone pointed out (here) that it was for a battery lead which wasn't connectd, so, you might have a simple problem... welcome to tbn, cya -art
p.s. the wheel weights, they are special, keep 'em keep them well taken care off, i've not seen anything like those.