Electrical resistance changes with the changes in heat.
Or it could be expansion of metal due to temperature.
Either way a simple test that any tech can do is run a wire frm bat + too the starter small wire tag.
This isolates all the other electrics and mechanicals like the ig switch,
If it still doesn't spin over then the starter has a heat related fault.
Posted on Thursday 22nd of February 2018Don't understand this? Ask a question