2008 Can-Am DS450 EFI, DS450 EFI X Shop Manual, Page 18Get this manual

2008 Can-Am DS450 EFI, DS450 EFI X Shop Manual, Page 18

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Section 02 TROUBLESHOOTING Subsection 02 (DIAGNOSTIC FLOW CHART)
Crank or Start engine

Perform fuel pump test

Fast pressure drop

Fuel pressure less than 35