2004 Skidoo ZX Series Service Manual, Page 306Get this manual
Section 06 ENGINES MANAGEMENT (2-TEC) Subsection 02 (COMPONENT INSPECTION AND ADJUSTMENT)
COMPONENT INSPECTION AND ADJUSTMENT
GENERAL
Engine problems are not necessarily related to the electronic fuel injection systemIt is important to ensure that the mechanical integrity of the enginepropulsion system is present: good transmission system operation good engine compression and properly operating mechanical components, no leaks etc fuel pump connection and fuel lines without leaksCheck the chart in TROUBLESHOOTING section to have an overview of problems and suggested solutionsWhen replacing component, always check its operation after installation