Why does the bolts break in a one way starter gear on your 660 raptor?

The bolts in a one-way starter gear on a Yamaha Raptor 660 can break due to several factors, including excessive wear, improper torque specifications, or misalignment during installation. Additionally, if the starter gear experiences excessive load from a weak battery or a faulty starter motor, it can lead to increased stress on the bolts, causing them to fail. Regular maintenance and ensuring proper installation can help prevent this issue.