Ahh the smell of burnt windings.A 240v coil can be bought if need be.So you wont have to replace the entire starter again.It will last about a day at 2x the rated voltage.You are probably smelling the varnish burning off the coil windings.Short answer is that if it stinks you got a problem.I would check it right away as a hot coil can distort the body of the starter causing it binde when pulling in and out manking the whole assembly junk.the original coil should fit if the numbers match and it's still good
cheers
