2007-2009 Yamaha F15/F20 Outboard Service Manual, Page 293Get this manual

2) DURABLE TILLER HANDLE MOUNT A thicker tiller-handle mount bracket is used to obtain durability
Sandwich-mount structure for durability

Fig13 Tiller handle mount

3) TWO-PIECE THROTTLE GRIP SHAFT

• ATV
• Jet Ski
• Outboard Motors
• Personal Watercraft
• Snowmobiles
• Stern Drives