in my area local auto parts place has an atv/ lawn mower display has one that works
or show the old one to the parts guy at an atv shop or yamaha shop
yamaha relay part number 4KD-81940-00
link list bikes it fits herehttp://www.boats.net/parts/detail/yamah ... 00-00.htmlnote i made in the past
here is my notes
MZ STARTER RELAY
JULY 13 2003 4914 MILES hello all 125 owners rt sm sx fun-x my rt 125 did not start on sunday morning at the BMWOA rally IN CHARLESTON WV sounded like battery was low i jumped the starter relay at the big power wires under the seat and it started right up i then hooked up a wire where i could start it with out taking the seat off and road it home 95 MILES AND STARTED IT THAT WAY FOR 2 DAYS WHILE I CHECKED THINGS OUT BATTERY OK CHARGEING OK THEN WENT TO THE LOCAL AFTERMARKET PART SHOP IN MY HOME TOWN i replaced the starter relay with a
yamaha relay part number 4KD-81940-00 IT LOOKS JUST LIKE THE ORIGINIAL PART AND THE STARTING PROBLEM WENT AWAY THE RELAY WAS KICKING IN OK BUT WOULD NOT DELIVER THE CURRENT NEEDED TO MAKE THE STARTER MOTOR ROLL THE MOTOR DIRTY CONTACTS IN RELAY STARTER RELAYS ON LAWN MOWERS DO THE SAME THING BUT THEY CAN BE DRILLED APART AND CLEANED
dave
starternumber