Snowmobile Polaris (2006 year). Manual - part 28
5.4
CLEANFIRE FUEL INJECTION
3.
Torque the fuel rail fasteners to 108 in-lb (12Nm).
FUEL RAIL BLEEDING
The fuel pressure gauge (PN PV-43506-A) is used to check
the pressure in the fuel rail lines or to bleed the fuel rail
pressure from the fuel rail. You will need to bleed off the fuel
pressure if any service is needed to the fuel system or if engine
is to be removed.
1.
Attach the gauge to the Schrader valve.
2.
Once the gauge is onto the Schrader valve the pressure
gauge will indicate the pressure in the fuel rail.
3.
To bleed the pressure form the fuel rail you can turn the
bleeder valve on the gauge and bleed the system.
4.
Now the fuel rail is ready for service.
INJECTOR
The Cleanfire system utilizes 3 different color injectors. If you
are replacing an injector you must replace it with the same
color injector that you are removing. The color is indicated on
the short wire harness that is attached to the injector, and is
also indicated on the label of the ECU. If the color injector is
not available you may replace all injectors with a different
color and you must program the ECU to this color.
INJECTOR REPLACEMENT
If it is verified that a injector needs to be replaced, you must
first find out what injector color is on the unit. You can do this
by checking the decal that is located on the top portion of the
ECU or looking at the color wiring cover is on the injectors.
1.
Remove the plenum. See “IQ 700/900 AIR INTAKE
REMOVAL” on page 12.7.
2.
Remove the drive belt.
3.
Bleed the fuel rail. See “FUEL RAIL BLEEDING” on
page 5.4.
4.
Remove the seat and fuel tank. See “IQ RMK SEAT
REMOVAL/INSTALLATION” on page 12.4.
5.
Remove the engine. See “700/900 LIBERTY ENGINE
REMOVAL” on page 6.6.
6.
Replace the injectors.
7.
Install engine. See “700/900 LIBERTY ENGINE
INSTALLATION” on page 6.8.
8.
Re-flash ECU with Digital Wrench.
9.
Test run.
THROTTLE BODY
SETTING THE THROTTLE BODY TPS
The throttle body has two settings that need to be meet. The
first is the base line and then the idle voltage.
SETTING THE BASE LINE VOLTAGE
You can perform this with the throttle body removed or in the
machine. It is easier to set the base line voltage with the
throttle body removed. See “THROTTLE BODY
REMOVAL” on page 5.6.
1.
Remove the drive clutch to gain access to the oil cable lock
nut.
2.
Disconnect the TPS harness.
3.
Loosen the oil cable lock nut and remove the oil cable
from the throttle body.
4.
Remove the throttle cable from the throttle body.
5.
Back off the idle lock nut and back out the idle screw until
Table 5-3: Cleanfire Injector Colors
INJECTOR COLOR
1202853-053
Yellow
1202853-027
Blue
1202853-015
Red