Fuel/Lubrication/Cooling SPECIAL TOOLS
2. Remove the seat, seat back, and seat base; then disconnect the battery. 3. Remove the air inlet boot between the air filter and throttle body; then disconnect the MAP sensor connector (A), fuel injector connector (B), and ISC connector (C).
A number of special tools must be available to the technician when performing service procedures in this section. Refer to the current Special Tools Catalog for the appropriate tool description. Description Oil Pressure Test Kit Tachometer
p/n 0644-495 0644-275
NOTE: Special tools are available from the Arctic Cat Service Department.
Electronic Fuel Injection
HDX048A
! WARNING Whenever the gasline hoses are removed (other than for pressure testing), the battery must be disconnected to prevent inadvertent activation of the electronic fuel pump.
! WARNING Whenever any maintenance or inspection is performed on the fuel system during which there may be fuel leakage, there should be no welding, smoking, open flames, etc., in the area.
TROUBLESHOOTING 1. Verify that the electric fuel pump is operating by listening for a “whirring” sound for approximately three seconds after the ignition switch is turned to the ON position. If no sound can be heard, see Electric Fuel Pump/Fuel Level Sensor in this section.
HDX043A
4. Remove the screw from the throttle arm cover and remove the cover; then loosen the jam nut and disconnect the throttle cable.
2. Check for a flashing EFI icon on the LCD. If EFI is flashing, see EFI Diagnostic System in the Electrical System section. 3. Make sure there is sufficient, clean gas in the gas tank. 4. Verify that the battery is sufficiently charged to crank the engine over at normal speed. 5. Check the air filter housing and air filter for contamination. Clean or replace as necessary (see the Periodic Maintenance section). REMOVING THROTTLE BODY 1. Turn the ignition switch to the OFF position; then remove the ignition switch key.
! WARNING Do not turn the ignition switch to the ON position with the hoses removed. Gasoline will be pumped by the electric fuel pump causing a safety hazard.
HDX044A
5. Slowly disconnect the gasline hose connector from the fuel rail.
! WARNING Gasoline may be under pressure. Place an absorbant towel under the connector to absorb any gasoline spray when disconnecting.
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