My service manual shows one diagram for ( non-emissionized engines )
850652 thru 999999 and 0001 thru 99422
earlier models without lamps & fuse block 850652 thru 999999 and 0001 thru 98683
later models- with lamps & fuse block from factory.
s/n 98684 to 850651
Another double fold out is for ( emissionized engines)
s/n 99423 thru 850651
earlier models with manual preheat switch
s/n 850652 thru 999999 and 0001 thru 100892
later models no manual preheat switch
s/n 100893 thru 850651
Is your machine "emissionized?