2004 Skidoo Tundra Skandic Series Service Manual, Page 184Get this manual

Section 04 ENGINE Subsection 07 (OIL INJECTION SYSTEM)
593 Engine on Skandic WT LCSUV 600

Injection oil

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