4-16
On the 500 cc, the injectors are coded with letters (A-B-
C). When replacement of a fuel injector is necessary, the
injector must be replaced with an injector of the same
code letter.
IO031A
On the 600/800/1000 cc, the injectors are coded with
symbols (
-
-
) and are color-coded yellow and green.
When replacement of a fuel injector is necessary, the
injector must be replaced with an injector of the same
code symbol and color.
FS025
FUEL PRESSURE REGULATOR
The fuel pressure regulator is located in the fuel pump.
The fuel pressure regulator maintains the fuel pressure at
a constant specified level.
FUEL PUMP CIRCUIT
The fuel pump and its circuit are provided with current
from the fuel pump coil on the stator.
For this circuit to function correctly, five components must
be properly functioning. Check the following components
before considering the fuel pump assembly to be defective.
A. Fuel pump coil - see coil test procedure.
B. Emergency stop switch and ignition switch
must be ON.
C. Fuel pump - see fuel pump test procedure.
D. Wiring harness and connectors - clean the con-
nectors and test the harness.
E. ECU.
CRANKSHAFT POSITION SENSOR
(1100 cc)
This sensor measures the location in degrees of rotation
of the crankshaft. A 15° resolution exists between sig-
nals. The signal is triggered by the metal rectangles on
the outer surface of the flywheel as they pass by the sen-
sor. The sensor gives the ECU the location of the crank-
shaft at a given point in time. The ECU processes the
information and uses it in many different types of calcu-
lations. For example, the sensor can be used for RPM,
and it can also be used to determine the rate of accelera-
tion of the crankshaft.
CAMSHAFT POSITION SENSOR
(1100 cc)
This sensor tells the ECU which stroke the engine is on.
Because the 4-stroke engine operates on a 720° cycle, the
piston is at TDC twice per cycle - once on the exhaust
stroke and once on the compression stroke.
MANIFOLD ABSOLUTE PRESSURE
(MAP) SENSOR (1100 cc)
This sensor measures pressure in the intake manifold
when the engine is running. The ECU uses this sensor to
aid in calculating the required fueling. For the base fuel
map, the 1100 cc non-turbo relies on the MAP sensor
only for low throttle openings. After a given throttle
opening is reached, the ECU switches to the TPS sensor
for its main fuel map. The 1100 cc turbo relies entirely on
the MAP sensor and only uses the TPS for its main fuel
map if the MAP sensor should fail. The ECU uses the
MAP sensor for many other calculations, but the base
fuel map is the main one.
WASTEGATE CONRTOL VALVE
(1100 cc Turbo)
The wastegate control valve adjusts the wastegate posi-
tion based on input from the ECU. The wastegate does
not require any input from the ECU to operate at base
boost levels. In areas of operation where the ECU will
allow the turbo to exceed base boost, the wastegate con-
trol valve bleeds some of the pressure that would typi-
cally be used to open the wastegate via the wastegate
diaphragm port on the turbo. By bleeding this pressure,
the wastegate is set at a lower opening thereby allowing
more exhaust gas to pass by the turbine increasing the
boost level.
KNOCK SENSOR (800 cc)
This sensor senses and controls engine knock or detona-
tion. The knock sensor assesses structure borne noise
(vibrations) caused by rapid pressure rises (detonation) in
either cylinder and performs calibration adjustments to
the necessary cylinder via the ECU limiting damage to
internal engine components. Detonation can be caused by
many variables including poor fuel quality, lean operat-
ing conditions, or modified engine components/systems.
CAUTION
Do not replace an injector with one of a different letter.
Severe engine damage may occur.
CAUTION
Do not replace an injector with one of a different code
symbol or letter. Severe engine damage may occur.
500 cc
600/800/
1000 cc
Manual
Table of Contents
Содержание Sno Pro 120 2011
Страница 15: ...1 13 1 1000 cc BTDC 14 1800 RPM 0 057 0744 034 Manual Table of Contents...
Страница 25: ...1 23 1 570ENG09 Manual Table of Contents...
Страница 27: ...1 25 1 500CC2A_10 Manual Table of Contents...
Страница 29: ...1 27 1 600CC2A_11 Manual Table of Contents...
Страница 31: ...1 29 1 800_11_2 Manual Table of Contents...
Страница 33: ...1 31 1 1000_10_1 Manual Table of Contents...
Страница 35: ...1 33 1 1100ccZ1RV10 Manual Table of Contents...
Страница 36: ...1 34 Engine Torque Patterns 1100 cc 1100TorquePattern Manual Table of Contents...
Страница 194: ...3 15 3 SNO2152 Manual Table of Contents...
Страница 195: ...3 16 SNO2153 Manual Table of Contents...
Страница 205: ...3 26 0742 314 738 067A F Series 2 Stroke CFR Crossfire M Series Manual Table of Contents...
Страница 293: ...5 32 Troubleshooting Servomotor SERVO1Arv Manual Table of Contents...
Страница 294: ...5 5 33 SERVO2rv Manual Table of Contents...
Страница 296: ...Magneto 0744 205 1 Table of Contents Manual Diagram Table of Contents...
Страница 298: ...Main Harness p n 1686 603 F5 LXR 0745 595 3 Table of Contents Manual Diagram Table of Contents...
Страница 299: ...Main Harness p n 1686 598 Crossfire 6 M6 0745 596 4 Table of Contents Manual Diagram Table of Contents...
Страница 300: ...Main Harness p n 1686 604 F6 Sno Pro 0745 597 5 Table of Contents Manual Diagram Table of Contents...
Страница 301: ...Main Harness p n 1686 606 F8 EXT F8 LXR 0745 603 6 Table of Contents Manual Diagram Table of Contents...
Страница 302: ...Main Harness p n 1686 605 F8 Sno Pro LTD 0745 604 7 Table of Contents Manual Diagram Table of Contents...
Страница 309: ...Hood Harness p n 1686 614 CFR Crossfire M Series 0744 179 14 Table of Contents Manual Diagram Table of Contents...
Страница 311: ...Console Harness p n 1686 573 F5 LXR F8 EXT F8 LXR 0744 190 16 Table of Contents Manual Diagram Table of Contents...
Страница 312: ...Console Harness p n 1686 572 F6 Sno Pro F8 Sno Pro LTD 0744 191 17 Table of Contents Manual Diagram Table of Contents...
Страница 317: ...Passenger Seat Harness p n 1686 570 TZ1 Models 22 0744 197 Table of Contents Manual Diagram Table of Contents...
Страница 318: ...Ignition Main Harness p n 1686 628 Sno Pro 500 23 0745 605 Table of Contents Manual Diagram Table of Contents...
Страница 319: ...Hood Harness p n 1686 587 Sno Pro 500 24 0744 201 Table of Contents Manual Diagram Table of Contents...
Страница 320: ...Ignition Main Harness p n 1686 629 Sno Pro 600 25 0745 606 Table of Contents Manual Diagram Table of Contents...
Страница 322: ...Handlebar Harness p n 1686 590 Sno Pro 500 27 0744 200 Table of Contents Manual Diagram Table of Contents...
Страница 323: ...Main Harness p n 1686 578 Sno Pro 120 28 0744 204 Table of Contents Manual Diagram Table of Contents...
Страница 374: ...7 6 0744 126 0745 585 Bearcat 570 Crossfire Models Manual Table of Contents...
Страница 375: ...7 7 7 0744 128 0745 584 CFR M Series Manual Table of Contents...
Страница 376: ...7 8 0744 841 0744 842 Bearcat XT EXT Models Manual Table of Contents...
Страница 518: ...8 28 0744 930 Manual Table of Contents...
Страница 535: ...Printed in U S A Trademarks of Arctic Cat Inc Thief River Falls MN 56701 p n 2258 805...