2002 Ski-Doo Shop Manual Volume One, Page 166Get this manual

2002 Ski-Doo Shop Manual Volume One, Page 166

Quality of the image is intentionally reduced!

Section 04 ENGINE Subsection 07 (OIL INJECTION SYSTEM)
2, Check Valve
Check valve is part (built-in) of injection nozzleTo verify this check valve, proceed the same as for checking pump op