Hi, I bought a starter box and it won't work as the drive wheel touches the sides of the hole in the chaissies before it touches the flywheel. The motor is mounted pretty high in my Volcano SV. So I ordered the rotostart from rufaster.com.

I ordered one for the VX18 motor, but the reciept and the box say sh18.

The backplate fits the hole pattern on the motor, but has a hexagonal hole in it. The motor when the pull start is removed has a shaft about 5/16"in diameter and about 1/2" long extending from it.

Round shaft in hexagonal hole... well you get the picture. Am I missing a oneway that should have come with it or is it just the wrong backplate?

Thanks for any help,
Rock