Hi Malcolm, you mention 'let the starter motor spin down', does it sound as though it is not engaging and then next try it does engage. If that is the case then it sounds like the starter gear isn't doing its job of 'throwing out on the shaft' initially.
Hi Josh, the part # is 89661-28040 for 08/1985 - 07/1986, and 89661-28100 for 08/1986 - 07/1988. This is for manual, not auto. US # is 89661-28080, if that is any help. Toyrolla has one advertised on tradingpost.