Genuine Scooter Company Buddy Kick User manual

Buddy Kick Service Manual

PREFACE
This service manual contains basic instructions in connection with general service and maintenance of the
Genuine Buddy Kick. This manual also contains detailed technical information for Genuine service technicians
who are engaged in maintenance, repair, parts replacement, troubleshooting, and reassembly. The service
manual is complete providing details from simple tear down to detailed disassembly and from a basic
performance introduction to service preparation. The manual also provides complete instructions for
general lubrication, routine inspections and adjustments. Various diagrams provide general views, exploded
views, or actual photos, all necessary items repeatedly cited will reference the previous drawings if
appropriate.
Specifications -
BRAND GENUINE FRAME STEEL TUBE
MODEL Buddy Kick
SUSPENSION
FRONT TELESCOPIC
SCALE
LENGTH 1720 mm 67.7 in REAR UNI-ABSORBER
WIDTH 710 mm 28 in
TRANSMISSION
1ST REDUCTION 0.75~2.6
HEIGHT 1060 mm 41.75 in 2ND REDUCTION 47/17*47/15=8.66
WHEEL BASE 1215 mm 47.8 in CLUTCH CENTRIFUGAL
MASS
MASS OF VEHICLE
FRONT 41 kg 90.40 lbs GEARBOX C.V.T.
REAR 62 kg 136.70 lbs
TYRE
FRONT 90/90-10
TOTAL 103 kg 227 lbs REAR 90/90-10
RIDERS 2 up to 150kg / 330 lbs
BRAKE
FRONT DISK
TOTAL MASS
FRONT 83 kg 183 lbs REAR DISK
REAR 170 kg 375 lbs SPEEDOMETER 140 km/hr 87 mi/hr
TOTAL 253 kg 558 lbs
LIGHT
HEADLAMP 12V-35W/35W

PERFORMANCE
TOP SPEED
92 km/hr 57 mph TAIL LIGHT
12V-0.2W/12V-5W
FUELCONSUMPTION
42 km/L 98.8 mpg BRAKE LIGHT
12V-2W
HILL CLIMB
25°↑
SIGNAL LIGHT
12V-2W/12V-2W
ENGINE
TYPE
J1
HORN
DC 12V
FUEL
92 UNLEADED
MUFFLER
C-D ABSORPTION
CYCLE/COOLING
4T / FORCED AIR&OILCOOL
EXHAUST DIRECTION
RIGHT & BACKWARD
CYLINDER
BORE
54 mm
LUBRICATION
COMPRESS & SPLASH
STROKE
54.5 mm
E. E. C.
NO
NUMBER
SINGLE
P. C. V.
YES
DISPLACEMENT
124.8 cc
CATALYST
YES
COMPRESSION RATIO
10.1：1
S. A. I.
YES
MAX POWER
8.0kW / 10.73hp @ 8250rpm
STARTER
ELECTRIC
MAX TORQUE
9.5N-m / 7 ft-lbf @ 6750rpm
IGNITION
TRANSISTOR
ARRANGEMENT
HORIZONTAL
FUEL TANK
5.5L 1.45 gal
NOTE
FUEL SUPPLY：INJECTION

This manual is a service manual for Genuine Buddy Kick with details specifying methods to
disassemble or install various mechanisms, basic maintenance including inspection and adjustment
of components, notices for operation, and diagnostics, etc. There are 15 sections as referenced
below.
Classification Item Page
Information summary and preparation 1 6~27
Installation or Removal of External Components 2 28~40
Check & Adjustment 3 41~70
Electronic fuel injection system 4 71~106
Lubrication System 5 107~110
Engine disassembly
6
111~116
Cylinder head 7 117~126
Cylinder combination
8
127~135
CVT
9
136~146
Crankcase & Crankshaft 10 147~160
Gear box
11
161~165
Shock absorber / brake system (ABS)
12
166~204
Charge, Ignition, and Start-up
13
205~221
Injection system diagnosis
14
222~238
Wiring 15

Information Summary and Preparation -1
1-1 Exterior parts diagram 1-2 Electrical Parts configuration
1-3 Positions of engine number / vehicle identification number
1-4 Code of practice
1-5 Torque
1-6 Service tools
1-7 Procedure to maintain the Electronic Management System (EMS)
1-1 Exterior parts diagram
FRONT TURN SIGNAL(R/L)
REAR TURN SIGNAL (R/L)
MUFFLER
DISK
HANDLE COVER UPER
TAIL LIGHT
SIDE REFLECTOR
FRONT HOOK
HEAD LIGHT COVER
SEAT
CVT
SPEEDOMETER
HEAD LIGHT ASSY
BACK
MIRROR(R/L)
CENTER STAND
DISK
OUTER FORK TUBE ASSY
SIDE STAND
FRONT BRAKE CALIPER
AIR CLEANER
BODY COVER
HANDLE COVER LOWER
BRAKE LEVER GRIP
GRIP
REAR BRAKE CALIPER
BRAKE
LOWER COVER (R /L)
FRONT INNER COVER
WINDSHIELD
FRONT UNDER COVER,(UPPER)
MIDDLE COVER
WIND SHIELD COVER
BODY COVER,FRONT
FRONT FENDER
REAR SUSPENSION
REAR LUGGAGE BRACKET
STEP FLOOR
FRONT INNER PANEL COVER

Information Summary and Preparation -1
1-2 Electrical Parts configuration
Number Type Number Type
1 BATTERY 12V*7A 2 STARTER RELAY
3 ECU 4 MAIN / FUEL RELAY
5 IGNITION COIL 6 FLASHER RELAY ASSY
7 HORN 8 TOPPLE SWITCH
9 MAIN SWITCH 10 FUSE
11 RECTIFIER 12 FUEL GUAGE
13 FUEL PUMP 14 THROTTLE BODY
12
13
14
10

Information Summary and Preparation -1
1-3 Positions of engine number / vehicle identification number
J1F00000 125 C.C

Information Summary and Preparation -1
1-4 Code of practice
1. Any clamp or cotter pin removed shall be replaced with a new one.
2. Any part to be replaced shall be manufactured by Genuine.
3. Make sure any assembled component is securely fastened and formally activated.
4. Any bolts or nuts with large external diameters rather than small ones shall be secured first and diagonally according
to rated torque values.
5. Any mechanic shall use appropriate tools for any disassembly and wear proper safety gear during maintenance.
6. Any maintenance operation performed by two mechanics shall be completed with each other’s safety in mind.
7. Any electrical parts slightly heated by the motorcycle’s operation are normal and should not be touched by hands directly.
8. Please keep any cable or wire harness properly secured but not excessively tight or loose, and without any sharp angles
or bolts / screws piercing a cable. Check all cables or wire harnesses for any unnecessary twists or kinks.
9. Do not put any tool on the motorcycle, particularly the battery which would cause a short circuit, during maintenance.
10. The battery in a motorcycle which has not been started for a long period should be tested to ensure its voltage is
acceptable and the battery should be charged at least once per month or placed on a maintenance charge.
11. Please follow the correct steps to connect and disconnect a lead acid battery without the short circuit or inflammation.
1-4-1 Directions for maintenance of the Engine Management System (EMS)
1) Directions for General Maintenance
Any check to the Electronic Management System shall be made with a multi-meter only.
1. To make sure of the Electronic Management System is properly running, please use parts supplied by Genuine
during maintenance.
2. Any operation to clean parts during maintenance shall be executed in a well-ventilated place.
3. Please follow the given instructions for all maintenance and diagnosis operations.
4. Do not disassemble or remove parts from the Electronic Management System during maintenance.
5. Please prevent any electronic element (electronic control unit, sensor, etc.) from falling to the ground during
maintenance; establish an environmental protection plan for any hazardous waste generated from maintenance.
2) Directions during maintenance
1. Do not arbitrarily remove any part or connector of the Electronic Management System from its initial location; avoid
any accidental damage or introduction of foreign material such as water and greasy dirt to any connectors as this can
negatively affect a properly running Electronic Management System.
2. In order to prevent any electrical device from damage, the battery power supply shall be disconnected prior to
removing or connecting electrical couplings or components.
3. During any operation which simulates the thermal state of a defective unit or increase in temperature, the
electronic control unit temperature should be less than 80 degrees Celsius.
4. All fuel hoses shall be high pressure-tolerant pipes because of the high fuel pressure in the Electronic
Management System (300kPa or so) which may be present even when the engine is stopped. Because of the high

Information Summary and Preparation -1
fuel pressure, the fuel hose shall not be disassembled arbitrarily. In the event of fuel system maintenance, the
pressure in the fuel system shall be released prior to removal of a fuel hose in the following order: Remove the fuel
pump relay; start the engine; keep the engine at the idle speed until the engine stops. Any maintenance operation
requiring removal of a fuel hose and/or replacement of a clamp shall be executed by a professional mechanic in a
well-ventilated area.
5. Disconnect all power supplied to the electric fuel pump when servicing or removing the pump from the fuel tank
to prevent any spark or fire.
6. Do not test the fuel pump empty or by using water else the service life of the pump will be curtailed. The positive
and negative poles of the fuel pump shall be properly connected to prevent damage.
7. Unless otherwise required, a spark test shall not be conducted or completed quickly during inspections of the ignition
system. Additionally, the throttle shall be kept closed during inspections otherwise unburnt gasoline will feed into the
exhaust system and damage the three-way catalytic converter.
8. The idle speed has been adjusted by the Electronic Management System in advance and should not be changed
manually. The initial position of the throttle stop screw adjusted by Genuine shall not be changed by a user without
permission unless otherwise required by Genuine.
9. The battery cables connected to the positive and negative poles on the battery shall be properly linked otherwise
damage will occur to the vehicle electronic devices.
10. Any cable connected to a battery shall not be disconnected while the engine is running.
11. The battery shall be removed from the motorcycle for charging and should not be directly charged with the
battery installed in the vehicle unless it is on a maintenance charge.
12. The cables connected to the battery’s positive & negative poles and the electronic control unit shall be removed
from the motorcycle prior to any electrical repair operation.
13. Do not cut a cable’s insulation layer to test for electrical signals.
14. Screws with thread lock that are unsecured during maintenance procedures should be cleaned and re-secured using
the same grade thread lock compound.

Information Summary and Preparation -1
1-5 Torque
Rated values
Type Torque (ft-lbf) Type Torque (ft-lbf)
5 mm bolt 3.5 ft-lbf 6 mm nut 9 ft-lbf
6 mm bolt 7 ft-lbf 8 mm nut 18 ft-lbf
8 mm bolt 15 ft-lbf 10 mm nut 25 ft-lbf
10 mm bolt 25 ft-lbf Pin / bolt 12 ft-lbf
12 mm bolt 40 ft-lbf
Body／Engine
Type Torque
(ft-lbf) Type Torque (ft-lbf) Type Torque (ft-lbf)
Disk 18 Cylinder head–(stud bolt)IN 4 Handlebar 38
Rear fork 23.5 Cylinder head-( stud bolt DOWN 5 Engine hanger 29
Brake caliper 18 Crank case cover (right) 7 Front shock absorber 29
Flywheel 30 CVT nut 40 Spark Plugs 8
Fan shroud 7 Rear axle 75 Rear shock absorber(UP) 27
Drain plug bolt
(engine oil)
20 Camshaft sprocket 4 Rear shock absorber(DOWN) 18
Drain plug bolt (gear oil) 20 Cylinder head cover 7 MUFFLER ASSY-FRONT BOLT 13
Oil strainer cover 13 Oil pump 7 MUFFLER ASSY–REAR BOLT 24
Stator comp 7 one-way clutch 70 Front axle 40
Stator comp- Pulse 6 Stud bolt (cylinder head) Oil line 7 Left side cover 7
Temperature Sensor 5 Cylinder head nut 16 Sound-proof cover 6
Oxygen Sensor 13 Oil cooler - joint bolt 24 Crank case (left & right) 6
Injector 7 Crankcase -(stud bolt) 7 Gearbox 7
Brake hose- joint bolt 20 Brake caliper--joint bolt 20 Screw, timing chain
tensioner assy
7
Center stand 27 Support bracket，pedal 18 Chain adjuster comp 7
Oil cooler assy 7 Crank angle sensor 6 Fuel gauge comp 2.5
Ignition coil comp 5

Information Summary and Preparation -1
1-6 Service tools
1. Front fork - Bearing cage
disassembly, tools
2. Brake oil-pumping unit 3. Bearing puller tool
4. Clutch compression tool 5. Clutch Fixator 6. feeler gauge
7. Bearing Striking Tools 8.Cylinder pressure gauge 9. Test line group
10. Hook type, wrench 11. flywheel puller 12. Crankshaft bearing removal tool

Information Summary and Preparation -1
13. multimeter 14. Gasoline pressure gauge 15. Valve compression tool
16. spark plug gap gauge 17.EMS diagnostics - dedicated 18. Hose clamp removal tool
19. Fuel injector cleaning tool 20. Oil seal removal tool - small 21. Dial gauge + Magnetic Base
22. Up crankshaft tools - dedicated 23. crankshaft demolition tool -
dedicated
24. Fork oil seal into the tool
25. Oil seal removal tool - Large

Information Summary and Preparation -1
1-7 Maintaining the Electronic Management System (EMS)
Systematic procedure to diagnose any trouble condition
Items below are to be checked first prior to any detailed diagnosis for engine troubles:
Make sure the engine trouble indicator light is functioning normally;
Connect diagnostic tool to determine if any trouble code information has been recorded;
Record any trouble phenomenon provided by the vehicle owner and determine possible trouble-related
conditions. External check:
(1) Check for any fuel hose leakage.
(2) Check for any leakage from a vacuum pipe.
(3) Check for any jam, leakage, flattening, or damage to an air inlet.
(4) Check the ignition system for breaks or aging of any high-voltage cables and ignition status.
(5) Check the grounding of any wire harness to make sure it is clean and securely fixed.
(6) Check to determine if any sensor or actuator’s connector has loosened or is poorly connected.
Note: Repair any trouble specified herein first which may affect the subsequent diagnoses or repair.
Diagnosis:
1. Make sure there are no engine-related trouble records;
2. Make sure you list any offered troubles provided by owner;
3. Follow the said procedure to complete the vehicle inspections and determine any fault conditions;
4. Do not ignore any possible effects from maintenance, cylinder compression, mechanical timing, or fuel quality on
the system;
5. Replace ECU for tests.
In the event all other trouble sources have been eliminated, the ECU should be the source of trouble; if not, re-
install the original ECU and repeat the procedure to recheck.
Trouble:
Engine not turning over or difficulty running during start-up
Engine running but start-up failing during start-up
Difficulty starting when hot
Difficulty starting when cold
Trouble of start-up anytime despite RPM normal
Start-up normal but idle speed unstable anytime
Start-up normal but idle speed unstable during warm-up
Start-up normal but idle speed unstable with warm-up finished
Start-up normal but idle speed unstable or stall with load such as front lamp applied
Start-up normal but idle speed too high
RPM low or stall during acceleration
Acceleration slow
Acceleration powerless; performance bad

Information Summary and Preparation -1
(1) Engine not turning over or difficulty during start-up
General trouble location: 1. Battery; 2. Start motor; 3. Main wiring or power switch; 4. Engine oil viscosity; 5. Engine
mechanism.
Procedure for general diagnoses:
No. Operating Procedure Detection
Results Subsequent Steps
1
Check the voltage between two battery terminals with
a multi-meter to ensure the voltage is between 11 and
12V during start-up of the engine.
Yes Next step
No Replace the battery.
2 Turn the power switch “ON” and check the voltage at
the positive terminal on the start motor is over 8V.
Yes Next step
No Fix or replace wiring
harness.
3
Remove the starter motor and check its status for
open circuits or jams attributed to insufficient
lubrication.
Yes Fix or replace the
start motor.
No Next step
4 For trouble in winter only, check the lubricant viscosity
in the engine for increased resistance of the starter
motor.
Yes Change applicable
lubricant.
No Next step
5
Check for mechanical resistance inside the engine
preventing the motor from turning or slowly
running.
Yes Correct resistance
inside the engine.
No Repeat the said step.

Information Summary and Preparation -1
(2) Engine running but stalling during start-up
General trouble location: 1. Fuel pump; 2. RPM Sensor; 3. Ignition coils; 4. Compression 5. Short Circuit.
Procedure for general diagnoses:
No. Operating Procedure Detection
Results Subsequent Steps
1
Connect a fuel pressure gauge prior to the fuel inlet of the
nozzle; press the power switch repeatedly if necessary or
start the engine to check the fuel pressure at 300kPa or so.
Yes Next step
No Repair the fuel supply
system.
2 Connect the EMS diagnosis tester and check “Engine RPM”;
start the engine to check any RPM signal output.
Yes Next step
No Correct circuits of the
RMP sensor.
3 Disconnect the ignition cable and connect a spark tester;
start the engine and check any high-voltage flash (blue/
white).
Yes Next step
No Repair the ignition
system.
4 Check pressure of the engine cylinder and find any possibility
of insufficient compression.
Yes
Eliminate any
mechanical trouble of
the engine.
No Next step
5
Connect an EMS adapter and press the power switch to check
voltages at Pins 5#, 10#, and 23#; check grounding at Pins 2#
and 21#.
Yes Diagnosis assist
No Repair the relevant
circuits.

Information Summary and Preparation -1
(3) Difficulty starting when hot
General trouble location: 1. Fuel Pump; 2. Ignition Coils; 3. Engine temperature sensor; 4. Fuel Quality; 5. Electrical
Procedure for general diagnoses:
No. Operating Procedure Detection
Results Subsequent Steps
1 Connect a fuel pressure gauge before the fuel inlet of the
nozzle; start the engine to check the fuel pressure at 300kPa or
so.
Yes Next step
No Repair the fuel
supply system.
2 Disconnect the ignition cable and connect a spark tester; start
the engine and check any high-voltage flash (blue/white).
Yes Next step
No Repair the
ignition system.
3
Press the engine temperature sensor connector and start the
engine; check if the engine successfully started. (Or install a
series-connected resistor (300Ω) in lieu of the engine
temperature sensor at the engine temperature sensor
connector. Check if the engine is successfully started.)
Yes
Correct circuits
or replace the
sensor.
No Next step
4 Check fuel and observe any trouble attributed to fuel just added. Yes Replace fuel.
No Next step
5
Connect an EMS adapter and press the power switch to check
voltages at Pins 5#, 10#, and 23#; check grounding at Pins 2#
and 21#.
Yes Diagnosis assist
No Repair the
relevant circuits.

Information Summary and Preparation -1
(4) Cold start difficulty
General trouble location: 1. Fuel pump; 2. Ignition Coils; 3. Engine temperature sensor; 4. Throttle & idle air bypass; 5.
Nozzle; 6. Fuel Quality; 7. Engine compression / valves; 8. Electrical
Procedure for general diagnoses:
No. Operating Procedure Detection
Results Subsequent Steps
1
Connect a fuel pressure gauge before the fuel inlet of the
nozzle; start the engine to check the fuel pressure at
300kPa or so.
Yes Next step
No Repair the fuel system.
2
Disconnect the ignition cable and connect a spark
tester; start the engine and check any high-voltage
flash
(blue/white).
Yes Next step
No Repair the ignition system.
3
Press the engine temperature sensor connector and start
the engine; check if the engine successfully started. (Or
install a series-connected resistor (2500Ω) in lieu of the
temperature sensor at the engine temperature sensor
connector. Observe if the engine is successfully started.)
Yes Correct circuits or
replace any sensor.
No Next step
4 Slightly pull the throttle to check if the engine is easily
started.
Yes Clean the air throttle
and the idle air bypass.
No Next step
5 Disassemble the nozzle and check any leakage or jam in
the nozzle with a nozzle cleaner & analyzer.
Yes Replace the
defective nozzle.
No Next step
6 Check fuel and observe any trouble attributed to fuel
just added.
Yes Change fuel.
No Next step
7 Check pressure of the engine cylinder and find
any possibility of pressure insufficient.
Yes Eliminate any mechanical
trouble of the engine.
No Next step
8
Connect an EMS adapter and press the power switch to
check voltages at Pins 5#, 10#, and 23#; check grounding
at Pins 2# and 21#.
Yes Diagnosis assist
No Repair the relevant circuits.

Information Summary and Preparation -1
(5) Start-up difficulty anytime despite normal RPM
General trouble location: 1. Air Intake; 2. Fuel pump; 3. Ignition coils; 4. Spark Plug; 5. Temperature Sensor; 6. Air throttle
and & idle air bypass; 7. Nozzle; 8. Fuel Quality; 9. Compression / Valves; 10. Ignition Timing; 11.Electrical.
Procedure for general diagnoses:
No. Operating Procedure Detection
Results Subsequent Steps
1 Check any jam of the air filter and leakage of the air intake. Yes Repair the air
intake system.
No Next step
2
Connect a fuel pressure gauge before the fuel inlet of the
nozzle; start the engine to check the fuel pressure at 300kPa
or so.
Yes Next step
No Repair the fuel supply
system.
3 Disconnect the ignition cable and connect a spark tester;
start the engine and check any high-voltage flash (blue/
white).
Yes Next step
No Repair the ignition
system.
4 Check the spark plug in the cylinder and its model and
gap conformable to specifications.
Yes Next step
No Adjust or change
the spark plug.
5 Press the engine temperature sensor connector and start
the engine; check if the engine is successfully started.
Yes Correct circuits or
replace the
sensor.
No Next step
6 Slightly pull the throttle to check if the engine is easily started. Yes
Clean the air throttle
and the air intake for
idle speed.
No Next step
7 Disassemble the nozzle and check any leakage or jam in
the nozzle with a nozzle cleaner & analyzer.
Yes Change the
defective nozzle.
No Next step
8 Check fuel and observe any trouble attributed to fuel
just added.
Yes Change fuel.
No Next step
9 Check pressure of the engine cylinder and find any possibility
of pressure insufficient.
Yes
Eliminate any
mechanical trouble
of the engine.
No Next step
10 Check if mechanical ignition timing of the engine is
conformable to specifications.
Yes Next step
No Correct ignition
timing.
11
Connect an EMS adapter and press the power switch to
check voltages at Pins 5#, 10#, and 23#; check grounding at
Pins 2# and 21#.
Yes Diagnosis assist
No Repair the
relevant circuits.

Information Summary and Preparation -1
(6) Start-up normal but idle speed is unstable anytime
General trouble location: 1. Air Intake; 2. Idle Governor; 3. Spark plug; 4. Air throttle and idle air bypass; 5. Nozzle; 6. Fuel
Quality; 7. Compression / Valves; 8. Ignition Timing; 9. Electrical.
Procedure for general diagnoses:
No. Operating Procedure Detection
Results Subsequent Steps
1 Check any jam of the air filter and leakage of the air intake. Yes Repair the air
intake system.
No Next step
2 Check the Idle governor for the control valve jammed. Yes Change
No Next step
3 Check the spark plug and its model and gap conformable
to specifications.
Yes Next step
No Adjustment or change
4 Check the air throttle and the idle air bypass for any
carbon deposition.
Yes Cleaning
No Next step
5 Disassemble the nozzle and check any leakage or jam in
the nozzle with a nozzle cleaner & analyzer.
Yes Replace the
defective nozzle.
No Next step
6 Check fuel and observe any trouble attributed to fuel just added. Yes Change fuel.
No Next step
7 Check pressure of the engine cylinder and find any big
difference in pressure.
Yes
Eliminate any
mechanical trouble of
the engine.
No Next step
8 Check if mechanical ignition timing of the engine is conformable
to specifications.
Yes Next step
No Correct ignition timing.
9
Connect an EMS adapter and press the power switch to check
voltages at Pins 5#, 10#, and 23#; check grounding at Pins 2# and
21#.
Yes Diagnosis assist
No Repair the
relevant circuits.

Information Summary and Preparation -1
(7) Start-up normal but idle speed is unstable during warm-up
General trouble location: 1. Air Intake; 2. Spark Plug; 3. Idle Governor; 4. Temperature sensor; 5. Nozzle; 6. Fuel quality;
7. Engine compression / Valves; 8.Electrical.
Procedure for general diagnoses:
No. Operating Procedure Detection
Results Subsequent Steps
1 Check any jam of the air filter and leakage of the air intake.
Yes Repair the air
intake system.
No Next step
2 Check the spark plug and its model and gap conformable
to specifications.
Yes Next step
No Adjustment or
change
3 Remove the Idle governor and check the air throttle, the idle
governor, and the idle air bypass for any carbon deposition.
Yes Clean relevant parts.
No Next step
4
Press the engine temperature sensor connector and start the
engine to check any instability of the idle speed during
warm-up of the engine.
Yes Correct circuits or
replace any sensor.
No Next step
5
Disassemble the nozzle and check the nozzle leaking or
blocked, or the flow out of tolerance with a nozzle cleaner
& analyzer.
Yes Change the
defective nozzle.
No Next step
6 Check fuel and observe any trouble attributed to fuel
just added.
Yes Change fuel.
No Next step
7 Check pressure of the engine cylinder and find any
big difference in pressure.
Yes
Eliminate any
mechanical trouble
of the engine.
No Next step
8
Connect an EMS adapter and press the power switch to
check voltages at Pins 5#, 10#, and 23#; check grounding at
Pins 2# and 21#.
Yes Diagnosis assist
No Repair the
relevant circuits.