Mercury Optimax Models 135, 150, Direct Fuel Injection., Page 110Get this manual

TIMING, SYNCHRONIZINGADJUSTING
Special Tools
1DMT 2000 Digital Tachometer Multi-meter PN 91-854009A1

2Digital Diagnostic Tool (DDT) 91-823686A2

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