Suzuki AN650/A Manual

99501-36160-01E
AN650
/
A
USE THIS MANUAL WITH:
AN650 SERVICE MANUAL (99500-36113-01E)

AN650/AK7 (’07-MODEL) 1
CONTENTS
AN650/AK7 (’07-MODEL)
© COPYRIGHT SUZUKI MOTOR CORPORATION 2007
This manual describes service data, service specifications, FI and servicing procedures which
differ from those of the AN650/AK6 (’06-model).
NOTE:
• Any differences between the AN650/AK6 (’06-model) and AN650/AK7 (’07-model) in
specifications and service data are indicated with an asterisk mark (*).
• Please refer to the AN650K6 (’06-model) service manual for details which are not given
in this manual.
SPECIFICATIONS (AN650K7)........................................................................... 3
SPECIFICATIONS (AN650AK7) ........................................................................ 5
SDS CHECK ....................................................................................................... 7
FI SYSTEM WIRING DIAGRAM......................................................................... 11
ECM/PCM TERMINAL........................................................................................ 12
FAIL-SAFE FUNCTION............................................................................. 14
MALFUNCTION CODE AND DEFECTIVE CONDITION .......................... 15
“C40” (P0505 or P0506 and P0507) ISC VALVE CIRCUIT
MALFUNCTION......................................................................................... 16
“C41” (P2505) ECM/PCM POWER INPUT CIRCUIT
MALFUNCTION......................................................................................... 21
“C44” (P0130/P0135) HO2 SENSOR (HO2S) CIRCUIT
MALFUNCTION......................................................................................... 23
“C49” (P1656) PAIR CONTROL SOLENOID VALVE CIRCUIT
MALFUNCTION......................................................................................... 27
ISC VALVE REMOVAL ............................................................................. 29
ISC VALVE INSPECTION ......................................................................... 29
ISC VALVE INSTALLATION..................................................................... 29
ISC VALVE PRE-SET ............................................................................... 30
THROTTLE VALVE SYNCHRONIZATION............................................... 31
WIRING HARNESS, CABLE AND HOSE ROUTING ........................................ 33
WIRING HARNESS ROUTING ................................................................. 33
THROTTLE BODY INSTALLATION AND HOSE ROUTING ................... 34
SPECIAL TOOLS ............................................................................................... 35
TIGHTENING TORQUE CHART............................................................... 35
SERVICE DATA (AN650K7) .............................................................................. 36
SERVICE DATA (AN650AK7)............................................................................ 45
WIRING DIAGRAM............................................................................................. 55
SAMPLE

2 AN650/AK7 (’07-MODEL)
AN650/AK7 (’07-MODEL)
COUNTRY AND AREA CODES
The following codes stand for the applicable country(-ies) and area(-s).
MODEL CODE COUNTRY or AREA EFFECTIVE FRAME NO.
AN650
E-02
E-03
E-19
E-24
E-28
E-33
U.K.
U.S.A. (Except for california)
E.U.
Australia
Canada
California (U.S.A.)
JS1BU111200100524 –
JS1BU111200 100001 –
JS1BU111100114140 –
JS1BU121300100404 –
JS1BU111200 100001 –
JS1BU111200 100001 –
AN650A
E-02
E-03
E-19
E-24
E-28
E-33
E-51
U.K.
U.S.A. (Except for california)
E.U.
Australia
Canada
California (U.S.A.)
Korea
JS1BU132200100227 –
JS1CP51B 72100001 –
JS1BU132100117025 –
JS1BU142300100012 –
JS1CP51B 72100001 –
JS1CP51B 72100001 –
JS1BU132470100001 –
SAMPLE

AN650/AK7 (’07-MODEL) 3
SPECIFICATIONS (AN650K7)
DIMENSIONS AND DRY MASS
Overall length ..................................................................................... 2 260 mm (89.0 in)
Overall width....................................................................................... 810 mm (31.9 in)
Overall height ..................................................................................... 1 435 mm (56.5 in)
Wheelbase ......................................................................................... 1 595 mm (62.8 in)
Ground clearance............................................................................... 130 mm ( 5.1 in)
Seat height ......................................................................................... 750 mm (29.5 in)
Dry mass ............................................................................................ 235 kg (518 lbs)
ENGINE
Type.................................................................................................... 4-stroke, liquid-cooled, DOHC
Number of cylinders ........................................................................... 2
Bore.................................................................................................... 75.5 mm (2.972 in)
Stroke ................................................................................................. 71.3 mm (2.807 in)
Displacement...................................................................................... 638 cm3(38.9 cu. in)
Compression ratio .............................................................................. 11.2 : 1
Fuel system ........................................................................................ Fuel injection
Air cleaner .......................................................................................... Non-woven fabric element
Starter system .................................................................................... Electric
Lubrication system ............................................................................. Wet sump
Idle speed ........................................................................................... 1 200 ± 100 r/min
DRIVE TRAIN
Clutch ................................................................................................. Wet multi-plate,automatic,centrifugal type
Primary reduction ratio ....................................................................... 1.333 (88/66)
Gearshift pattern................................................................................. Automatic & Manual shift
Automatic transmission ratio .............................................................. Variable change (1.800-0.465)
Secondary reduction ratio .................................................................. 3.934 (39/31 × 43/25 × 40/22)
Final reduction ratio............................................................................ 1.580 (32/31 × 31/32 × 34/31 × 49/34)
Drive system....................................................................................... Gear drive
CHASSIS
Front suspension ................................................................................ Telescopic, coil spring, oil damped
Rear suspension ................................................................................ Swingarm type, coil spring, oil damped
Front fork stroke.................................................................................. 110 mm (4.3 in)
Rear wheel travel................................................................................ 100 mm (3.9 in)
Caster................................................................................................. 26° 10’
Trail..................................................................................................... 106 mm (4.17 in)
Steering angle .................................................................................... 41° (right and left)
Turning radius..................................................................................... 2.7 m (8.9 ft)
Front brake ......................................................................................... Disc brake,twin
Rear brake.......................................................................................... Disc brake
Front tire size ...................................................................................... 120/70R15M/C 56H, tubeless
Rear tire size ...................................................................................... 160/60R14M/C 65H, tubeless
ELECTRICAL
Ignition type ........................................................................................ Electronic ignition (Transistorized)
Ignition timing ..................................................................................... 10° B.T.D.C. at 1 200 r/min
Spark plug .......................................................................................... NGK CR8E or DENSO U24ESR-N
Battery ................................................................................................ 12 V 43.2 kC (12 Ah)/10 HR
Generator ........................................................................................... Three-phase A.C. generator
Main fuse............................................................................................ 40 A
CVT fuse ............................................................................................ 40 A
Fuse ................................................................................................... 15/15/15/15/10/10/10 A ..........................E-02, 19
15/15/15/15/15/10/10 A ..........................E-03, 24, 28, 33
Headlight ............................................................................................ 12 V 60 + 55/55 + 55 (H4 + H7)..............E-02, 19
12 V 60/55 × 2 (H4 × 2) ..........................E-03, 24, 28, 33
Position/Parking light .......................................................................... 12 V 5 W × 2..E-02, 19
Brake light/Taillight.............................................................................. 12 V 21/5 W × 2
License plate light............................................................................... 12 V 5 W
Trunk light ........................................................................................... 12 V 5 W
Turn signal light .................................................................................. 12 V 21 W
Instrument panel light ......................................................................... 12 V 1.4 W × 2
Coolant temperature warning light ..................................................... 12 V 1.4 W
Fuel injection warning light................................................................. 12 V 1.4 W
Oil pressure warning light................................................................... 12 V 1.4 W
Brake lock warning light...................................................................... 12 V 1.4 W
High beam indicator light.................................................................... 12 V 1.4 W
Turn signal indicator light.................................................................... 12 V 1.4 W × 2
Power mode indicator light ................................................................. 12 V 1.4 W
Drive indicator light............................................................................. 12 V 1.4 W
Gear position indicator light................................................................ 12 V 1.4 W × 5
Immobilizer indicator light ................................................................... LED....... E-02, 19, 24
Over drive indicator light..................................................................... 12 V 1.4 W
SAMPLE

4 AN650A/K7 (’07-MODEL)
CAPACITIES
Fuel tank, including reserve ............................................................... 15.0 L (4.0/3.3 US/Imp gal)
Engine oil, oil change......................................................................... 2 600 ml (2.7/2.3 US/Imp qt)
with filter change .............................................................. 2 900 ml (3.1/2.6 US/Imp qt)
overhaul............................................................................ 3 400 ml (3.6/3.0 US/Imp qt)
Transmission oil, oil change ................................................................ 360 ml (12.2/12.7US/Imp oz)
overhaul ................................................................... 400 ml (13.5/14.1US/Imp oz)
Final gear oil, oil change..................................................................... 300 ml (10.1/10.6US/Imp oz)
overhaul ....................................................................... 430 ml (14.5/15.1US/Imp oz)
Coolant................................................................................................ 1.6 L (1.7/1.4 US/Imp qt)
SAMPLE

AN650/AK7 (’07-MODEL) 5
SPECIFICATIONS (AN650AK7)
DIMENSIONS AND DRY MASS
Overall length ..................................................................................... 2 260 mm (89.0 in)
Overall width....................................................................................... 810 mm (31.9 in)
Overall height ..................................................................................... 1 435 mm (56.5 in)
Wheelbase ......................................................................................... 1 595 mm (62.8 in)
Ground clearance............................................................................... 130 mm ( 5.1 in)
Seat height ......................................................................................... 750 mm (29.5 in)
Dry mass ............................................................................................ 243 kg (535 lbs)
ENGINE
Type.................................................................................................... 4-stroke, liquid-cooled, DOHC
Number of cylinders ........................................................................... 2
Bore.................................................................................................... 75.5 mm (2.972 in)
Stroke ................................................................................................. 71.3 mm (2.807 in)
Displacement...................................................................................... 638 cm3(38.9 cu. in)
Compression ratio .............................................................................. 11.2 : 1
Fuel system ........................................................................................ Fuel injection
Air cleaner .......................................................................................... Non-woven fabric element
Starter system .................................................................................... Electric
Lubrication system ............................................................................. Wet sump
Idle speed ........................................................................................... 1 200 ± 100 r/min
DRIVE TRAIN
Clutch ................................................................................................. Wet multi-plate,automatic,centrifugal type
Primary reduction ratio ....................................................................... 1.333 (88/66)
Gearshift pattern................................................................................. Automatic & Manual shift
Automatic transmission ratio .............................................................. Variable change (1.800-0.465)
Secondary reduction ratio .................................................................. 3.934 (39/31 × 43/25 × 40/22)
Final reduction ratio............................................................................ 1.580 (32/31 × 31/32 × 34/31 × 49/34)
Drive system....................................................................................... Gear drive
CHASSIS
Front suspension ................................................................................ Telescopic, coil spring, oil damped
Rear suspension ................................................................................ Swingarm type, coil spring, oil damped
Front fork stroke.................................................................................. 110 mm (4.3 in)
Rear wheel travel................................................................................ 100 mm (3.9 in)
Caster................................................................................................. 26° 10’
Trail..................................................................................................... 106 mm (4.17 in)
Steering angle .................................................................................... 41° (right and left)
Turning radius..................................................................................... 2.7 m (8.9 ft)
Front brake ......................................................................................... Disc brake,twin
Rear brake.......................................................................................... Disc brake
Front tire size ...................................................................................... 120/70R15M/C 56H, tubeless
Rear tire size ...................................................................................... 160/60R14M/C 65H, tubeless
ELECTRICAL
Ignition type ........................................................................................ Electronic ignition (Transistorized)
Ignition timing ..................................................................................... 10° B.T.D.C. at 1 200 r/min
Spark plug .......................................................................................... NGK CR8E or DENSO U24ESR-N
Battery ................................................................................................ 12 V 43.2 kC (12 Ah)/10 HR
Generator ........................................................................................... Three-phase A.C. generator
Main fuse............................................................................................ 40 A
CVT fuse ............................................................................................ 40 A
Fuse ................................................................................................... 15/15/15/15/15/10/10/15/15 A
Headlight ............................................................................................ 12 V 60 + 55/55 + 55 (H4 + H7)..............E-02, 19, 51
12 V 60/55 × 2 (H4 × 2) ..........................E-03, 24, 28, 33
Position/Parking light .......................................................................... 12 V 5 W × 2..E-02, 19, 51
Brake light/Taillight.............................................................................. 12 V 21/5 W × 2
License plate light............................................................................... 12 V 5 W
Trunk light ........................................................................................... 12 V 5 W
Turn signal light .................................................................................. 12 V 21 W
Instrument panel light ......................................................................... 12 V 1.4 W × 2
Coolant temperature warning light ..................................................... 12 V 1.4 W
Fuel injection warning light................................................................. 12 V 1.4 W
Oil pressure warning light................................................................... 12 V 1.4 W
Brake lock warning light...................................................................... 12 V 1.4 W
High beam indicator light.................................................................... 12 V 1.4 W
Turn signal indicator light.................................................................... 12 V 1.4 W × 2
Power mode indicator light ................................................................. 12 V 1.4 W
Drive indicator light............................................................................. 12 V 1.4 W
Gear position indicator light................................................................ 12 V 1.4 W × 5
ABS indicator light.............................................................................. 12 V 1.4 W
Immobilizer indicator light ................................................................... LED....... E-02, 19, 24, 51
Over drive indicator light..................................................................... 12 V 1.4 W
SAMPLE

6 AN650A/K7 (’07-MODEL)
CAPACITIES
Fuel tank, including reserve ............................................................... 15.0 L (4.0/3.3 US/Imp gal)
Engine oil, oil change......................................................................... 2 600 ml (2.7/2.3 US/Imp qt)
with filter change .............................................................. 2 900 ml (3.1/2.6 US/Imp qt)
overhaul............................................................................ 3 400 ml (3.6/3.0 US/Imp qt)
Transmission oil, oil change ................................................................ 360 ml (12.2/12.7US/Imp oz)
overhaul ................................................................... 400 ml (13.5/14.1US/Imp oz)
Final gear oil, oil change..................................................................... 300 ml (10.1/10.6US/Imp oz)
overhaul ....................................................................... 430 ml (14.5/15.1US/Imp oz)
Coolant................................................................................................ 1.6 L (1.7/1.4 US/Imp qt)
SAMPLE

AN650/AK7 (’07-MODEL) 7
SDS CHECK
Using SDS, sample the data at the time of new and periodic vehicle inspections.
After saving the sampled data in the computer, file them by model and by user.
The periodically filed data help improve the accuracy of troubleshooting since they can indicate the condition
of vehicle functions that has changed with time.
For example, when a vehicle is brought in for service but the troubleshooting of a failure is not easy, compar-
ing the current data value to the past filed data value at time of normal condition can allow the specific
engine failure to be determined.
Also, in the case of a customer vehicle which is not periodically brought in for service with no past data value
having been saved, if the data value of a good vehicle condition have been already saved as a master
(STD), comparison between the same models helps facilitate the troubleshooting.
• Set up the SDS tools. (Refer to the SDS operation manual for further details.)
!09904-41010: SDS set tool
99565-01010-010: CD-ROM Ver.10
NOTE:
* Before taking the sample of data, check and clear the Past DTC. (Refer to the SDS operation manual for
further details.)
* A number of different data under a fixed condition as shown below should be saved or filed as sample.
SAMPLE:
Data sampled from cold starting through warm-up
Check the engine coolant temperature.
XX ˚C
Check the manifold absolute pressure.
XX kPa
Check the engine r/min.
XXXX r/min
SAMPLE

8 AN650A/K7 (’07-MODEL)
Data at 3 000 r/min under no load
Data of manifold absolute pressure operation at the time of cold starting
Approx. 3 000 r/min
Check the manifold absolute pressure.
XX kPa
Check the engine coolant temperature.
XX ˚C
Check the engine r/min.
XXXX r/min
Check the manifold absolute pressure.
XX kPa
Check the engine coolant temperature.
XX ˚C
SAMPLE

AN650/AK7 (’07-MODEL) 9
Data of intake negative pressure during idling (100 °C)
Data of manifold absolute pressure operation at the time of hot starting
Check the engine coolant temperature.
Approx. 100 ˚C
Check the manifold absolute pressure.
XX kPa
Check the manifold absolute pressure.
XX kPa
Check the engine r/min.
XXXX r/min
Check the engine coolant temperature.
XX ˚C
SAMPLE

10 AN650A/K7 (’07-MODEL)
Example of trouble
Three data; value 1 (current data 1), value 2 (past data 2) and value 3 (past data 3); can be made in compar-
ison by showing them in the graph. Read the change of value by comparing the current data to the past data
that have been saved under the same condition, then you may determine how changes have occurred with
the pass of time and identify what problem is currently occurring.
With DTC not output, if the value of engine coolant temperature is found to be lower than the data saved
previously, the possible cause may probably lie in a sensor circuit open or ground circuit opened or influence
of internal resistance value changes, etc.
Abnormal value of engine coolant temperature
Abnormal curve of graph
Unstable idling speed (Too high)
No DTC output
SAMPLE

AN650/AK7 (’07-MODEL) 11
FI SYSTEM WIRING DIAGRAM
Crankshaft position sensor(CKPS)
Camshaft position sensor (CMPS)
Combination
meter
Fuel injector #1 Fuel injector #2
Ignition coil #2
Ignition coil #1
M
M
30 A
10 A
15 A
40 A
*3
*2
ECM/PCM
*1
*1
*1
Fuel pump
Intake air pressure sensor (IAPS)
Ambient pressure sensor
(APS)
Throttle position sensor
(TPS)
Engine coolant temperature
sensor (ECTS)
Intake air temperature
sensor (IATS)
HO2 sensor (HO2S)
Tip-over sensor (TOS)
Speed sensor
Immobilizer ISC valve
Shift up
switch
Side-stand relay
EVAP system
purge control
solenoid
valve
Shift down
switch
Mode
switch
Power
switch
Center stand
switch
Brake light
switch
*1: For E-02, 19, 24
*2: For E-03, 28, 33
*3: For E-33 only
Pulley position sensor
CVT unit
Starter
relay
HO2 sensor heater
Brake
light
Cooling
fan relay
Starter
switch
Ignition
switch
PAI R
control
solenoid
valve
Brake light
switch
Engine
stop switch
Side-stand switch
CVT motor
Fuel pump relay
To
Combi-
nation
meter
W
W/G Gr/B
B/W
B/W
W/Bl
Y/Bl
B/Y
G/Bl
Y/W
R/B
O/W
O/Y
B/W
R/W
G/R
G/B
B/Lg
P/W
W/B
G/W
R/W
Lg/Y
W/B
B
G
Dbr
Br
Bl
G
Y
Lg
Gr/Y
Y/G
R/Bl
Gr/W
B/Y
Br
R
Lg/B
G/Y
P/B
B/Bl
B/G
Br/R
Y/R
P
B/Br
B/O
Y/Bl
Dg
P/W O/BlBr/W
Secondary pulley
revolution sensor
SAMPLE

12 AN650A/K7 (’07-MODEL)
ECM/PCM TERMINAL
ECM TERMINAL
NO.
CIRCUIT
K6 K7

1Ignition coil (IG2) ←

2Fuel injector (#1) ←

3Fuel injector (#2) ←

4Shift up switch (UP) ←

5Pulley position sensor (PPS) ←

6PTVC heater (PTC) EVAP system purge control solenoid valve
(E-33 only)

7Speed sensor (SPD) ←

8PAIR control solenoid valve (PAIR) ←

9Fuel pump relay (FP) ←

0Ignition coil (IG1) ←

ACooling fan relay (FRL) ←

BPower switch (POWER) ←

CMode switch (MODE) ←

DShift down switch (DOWN) ←

E——

F——

GBattery (+B) ←

HCenter stand switch (CSTD) ←

ISide-stand switch (SS) ←

JBrake switch (BRK) ←

K——

L——

M——

N——

O——

PGround (E03) ←

QGround (E01) ←

RStarter relay (STA) ←

S— TO sensor (DON)

T— IAP sensor (PM)

U——
SAMPLE

AN650/AK7 (’07-MODEL) 13
ECM TERMINAL
NO.
CIRCUIT
K6 K7

V——

WBattery (BATT) ←

X——

YGround (E1) ←

ZCKP sensor (N-) ←

[CMP sensor (G+) ←

\HO2 sensor heater (OXH) ←

]Immobilizer (TXCK) (For E-02, 19, 24) ←

^Immobilizer (RXCK) (For E-02, 19, 24) ←

aImmobilizer LED (Meter) (For E-02, 19, 24)
Anti-thief switch (AT) (For E-03, 28, 33) ←

bInjector power voltage (VM) ←

cCKP sensor (N+) ←

dCMP sensor (G-) ←

eHO2 sensor (OX) ←

f
Secondary pulley revolution sensor (SPR-)
←

g
Secondary pulley revolution sensor (SPR+)
←

hSensor power (Vcc) ←

iTP sensor (VTA) ←

jIAT sensor (THA) ←

kECT sensor (THW) ←

lAP sensor (PA) ←

m— ISC valve 1A (IS1A)

nGround (E2) ←

oTachometer (TACO) ←

pMeter communication (ETCH) ←

q——

rIAP sensor (PM) ISC valve 2B (IS2B)

sTO sensor (DON) ISC valve 2A (IS2A)

tIG switch (AT) ISC valve 1B (IS1B)

uBattery (VB) ←

vCVT motor (MO+) ←

wGround ←

xCVT motor (MO-) ←
SAMPLE

14 AN650A/K7 (’07-MODEL)
FAIL-SAFE FUNCTION
FI system is provided with fail-safe function to allow the engine to start and the motorcycle to run in a mini-
mum performance necessary even under malfunction condition.
The engine can start and can run even if the above signal is not received from each sensor. But, the engine
running condition is not complete, providing only emergency help (by fail-safe circuit). In this case, it is nec-
essary to bring the motorcycle to the workshop for complete repair.
ITEM FAIL-SAFE MODE STARTING
ABILITY
RUNNING
ABILITY
HO2 sensor Feedback compensation is inhibited.
(Air/fuel ratio is fixed to normal.) “YES” “YES”
PAIR control solenoid valve ECM stops controlling PAIR control
solenoid valve.
HO2 sensor feedback compensation
is inhibited.
Power for HO2 sensor is shut off.
“YES” “YES”
ISC valve When motor disconnection or lock
occurs, power from ECM is shut off. “YES” “YES”
SAMPLE

AN650/AK7 (’07-MODEL) 15
MALFUNCTION CODE AND DEFECTIVE CONDITION
DTC No. DETECTED
ITEM DETECTED FAILURE CONDITION CHECK FOR
C00 NO FAULT ––––––––––– –––––––––––
C40 (P0505)
ISC valve Although current is flowing though the
ISC valve motor, the current detection
is not possible.
ISC valve circuit open or shorted
to ground
C40 (P0506)
Idle speed is lower than the desired
idle speed.
Air passage clogged
ISC valve is fixed
ISC valve pre-set position is
incorrect
C40 (P0507)
Idle speed is higher than the desired
idle speed.
ISC valve is fixed
ISC valve pre-set position is
incorrect
C41 (P2505)
ECM/PCM
power input
signal
No voltage is applied to the ECM,
although the ignition switch is turned
ON.
Lead wire/coupler connection of
ECM terminal to fuel fuse, fuel
fuse, battery voltage to ECM
(BATT) shorted to ground or
open
C44
HO2 sensor HO2 sensor output voltage is not input
to ECM during engine operation and
running condition.
(Sensor voltage < 1.0 V)
In other than the above value, C44
(P0130) is indicated.
HO2 sensor circuit open
P0130
C44 The Heater can not operate so that
heater operation voltage is not supply
to the oxygen heater circuit, C44
(P0135) is indicated.
HO2 sensor lead wire/coupler
connection
Battery voltage supply to the
HO2 sensor
P0135
C49 PAIR control
solenoid
valve
PAIR control solenoid valve voltage is
not input to ECM.
PAIR control solenoid valve, lead
wire/coupler
P1656
SAMPLE

16 AN650A/K7 (’07-MODEL)
“C40” (P0505 or P0506 and P0507) ISC VALVE CIRCUIT MALFUNCTION
"
INSPECTION
Step 1
1) Turn the ignition switch OFF.
2) Remove the maintenance lid. (#AN650K3 9-13)
3) Check the ISC valve coupler

1for loose or poor contacts.
If OK, then check the ISC valve lead wire continuity.
DETECTED CONDITION POSSIBLE CAUSE
C40
(P0505)
Although current is flowing though the
ISC valve motor, the current detection is
not possible.
• ISC valve circuit open or shorted to ground
• Power source circuit open
C40
(P0506)
Idle speed is lower than the desired idle
speed.
• Air passage clogged
• ISC valve is fixed
• ISC valve pre-set position is incorrect
C40
(P0507)
Idle speed is higher than the desired
idle speed.
• ISC valve is fixed
• ISC valve pre-set position is incorrect
P/W
ECM
ISC. 1A
ISC. 1B
ISC. 2A
ISC. 2B
ISC valve
B/Lg
W/B
G
* Be careful not to disconnect the ISC valve coupler at least 5 seconds after ignition switch is
turned OFF.
If the ECM coupler or ISC valve coupler is disconnected within 5 seconds after ignition switch
is turned OFF, there is a possibility of an unusual valve position being written in ECM and
causing an error of ISC valve operation.
* When using the multi-circuit tester, do not strongly touch the terminal of the ECM coupler
with a needle pointed tester probe to prevent the terminal damage or terminal bend.
1
SAMPLE

AN650/AK7 (’07-MODEL) 17
4) Remove the front panel. (#AN650K3 9-8)
5) Disconnect the ISC valve coupler and ECM couplers.
6) Check the continuity between terminals

A(B/Lg) and

m, ter-
minals

B(P/W) and

t, terminals

C(G) and

s, terminals

D
(W/B) and

r.
$ISC valve lead wire continuity: Continuity (%)
!09900-25008: Multi-circuit tester set
09900-25009: Needle pointed probe set
&Tester knob indication: Continuity test (%)
Is the continuity OK?
7) After repairing the trouble, clear the DTC using SDS tool.
(Refer to the SDS operation manual for further details.)
Step 2
1) Remove the front box. (#AN650K3 9-18)
2) Measure the resistance between terminals

Aand

B, termi-
nals

Cand

D.
$ISC valve resistance: Approx. 80
Ω
at 25 °C (77 °F)
(Terminal

A– Terminal

B)
(Terminal

C– Terminal

D)
Is the resistance OK?
3) After repairing the trouble, clear the DTC using SDS tool.
(Refer to the SDS operation manual for further details.)
1
YES Go to Step 2.
NO Y, B/Lg, P/W, G or W/B wire open.
YES If wire is OK, intermittent trouble or faulty ECM.
NO Replace the ISC valve with a new one.
1
ECM coupler (Harness side)
2
SAMPLE

18 AN650A/K7 (’07-MODEL)
ACTIVE CONTROL INSPECTION (ISC RPM CONTROL)
Check 1
1) Place the motorcycle on the center stand.
2) Pull the parking brake lever and make sure that the rear
wheel is locked.
3) Set up the SDS tool. (Refer to the SDS operation manual for
further details.)
4) Check that the engine is running.
5) Click the “Engine and Transmission”

1.
6) Click the “ISC rpm control”

2.
7) Check that the “Spec”

3is idle speed 1 200 ± 100 rpm.
8) Check that the “Desired idle speed”

4is within the specified
idle rpm.
SAMPLE

AN650/AK7 (’07-MODEL) 19
Check 2
1) Click the button

1and decrease the “Spec”

2to 1 050 rpm
slowly.
2) Check that the “Desired idle speed”

3is nearly equal to the
“Spec”

2. At the same time, check that the number of steps

4in the ISC valve position decreases.
NOTE:
It takes a few seconds for “Desired idle speed” to catch up with
the changed value of “Spec”.
3) Click the button

5and increase the “Spec”

2slowly.
4) Check that the “Desired idle speed”

3is nearly equal to the
“Spec”

2. Also, check that the number of steps

4in the ISC
valve position increases.
Check 3
1) Click the button

1and increase the “Spec”

2to 1 400 rpm
slowly.
2) Check that the “Desired idle speed”

3is nearly equal to the
“Spec”

2. Also, check that the number of steps

4in the ISC
valve position increases.
SAMPLE