This powerful starter motor is an upgrade for Yamaha engines which have racing big bore kits. You may use this f you are having a hard time starting with a big bore cylinder kit/racing block installed. However, you may need a bigger size battery and a strong power cable connection, as this starter motor will use more amps to power as well.
Rated for 200cc big bore kits.
PLEASE CHECK MEASUREMENTS BEFORE BUYING, AS THERE MAYH BE DIFFERENT MODELS.