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YAMAHA
SERVICE MANUAL
L1T-19616-G9 -93
G9-AJ/EJ
G9-AG/AH
G9-EG/EH1
G9-EH2
G2-A1E .
INDEX
CARS
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INFO
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SPECIFICATIONS
GENERAL INFORMATION
CARBURETION
PERIODIC INSPECTION
AND ADJUSTMENT
ENGINE OVERHAUL
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POWR
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CHASSIS
POWER TRAIN
ELECTRICAL
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~=========================~
IHEeD
TROUBLESHOOTING
CONTENTS
CHAPTER 1.
GENERAL INFORMATION
CAR IDENTIFiCATION 1-1
FRAME SERIAL NUMBER 1-1
ENGINE SERIAL NUMBER (FOR G2-Al 1-1
IMPORTANT INFORMATION 1-2
NO FLAME SOURCES 1-2
WASHING AND CLEANING 1-2
RIGHT TOOLS 1-2
MAKING IT NEAT 1-2
TIGHTENING TORQUE 1-2
ALL REPLACEMENT PARTS 1-3
GASKETS, OIL SEALS, AND O-RINGS 1-3
LOCK WASHERS/PLATES AND COTTER PINS _ 1-3
BEARINGS AND OIL SEALS 1-3
CIRCLlPS _ 1-4
NOTES ON DISASSEMBLY AND ASSEMBLY 1-4
SPECIAL TOOLS _ 1-5
FOR TUNE UP 1-5
FOR ENGINE SERVICE 1-5
FOR POWER TRAIN 1-6
FOR CHASSIS SERVICE , 1-7
FOR ELECTRICAL COMPONENTS 1-8
CHAPTER 2.
SPECIFICATIONS
GENERAL SPECIFICATIONS 2-1
FOR G2-A. 2-1
FOR G2-E , _ 2-1
MAINTENANCE SPECIFICATIONS 2-2
ENGINE 2-2
TRANSMISSION 2-7
CHASSIS _ 2-9
ELECTR ICAL. 2-12
GENERAL TORQUE SPECIFICATIONS 2-17
DEFINITION OF UNITS , 2-17
CABLE ROUTING (FOR G2-Al. 2-18
CABLE ROUTING (FOR G2-El 2-20
CHAPTER 3.
PERIODIC INSPECTION AND ADJUSTMENT
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CHAS
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CARB
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POWER TRAIN. _ _ 3-22
TRANSMISSION 01L LEVEL MEASUREMENT _ 3-22
TRANSMISSION OIL REPLACEMENT _ _ _.3-22
DRIVE BELT INSPECTION (FOR G2-A) _ 3-23
PRIMARY SHEAVE LUBRICATION (FOR G2-A) 3-24
SHEAVE INSPECTION , 3-25
SHIFTING CABLE ADJUSTMENT (FOR G2-A) 3-25
CHASSIS 3-26
BRAKE CABLE INSPECTION 3-26
PARKING BRAKE ADJUSTMENT _ 3-27
SHOE LINING INSPECTION , _ , 3-27
BRAKE AND ACCELERATOR PEDALS 3-29
STEERING INSPECTION.. " _ , 3-30
STEERING LINKAGE INSPECTION , ., '" . 3-33
WHEEL ALIGNMENT 3-33
TIRE AND WHEEL INSPECTION , 3-34
ENGINE (FOR G2-A) 3-8
VALVE CLEARANCE ADJUSTMENT ' 3-8
ENGINE OIL LEVEL MEASUREMENT 3-10
ENGINE OIL REPLACEMENT 3-10
OIL DELIVERY HOSE INSPECTION __ 3-11
AIR FILTER CLEANING _ " _ " .3-12
ENGINE BRACKET ADJUSTMENT _ 3-13
COMPRESSION PRESSURE MEASUREMENT _ 3-13
CARBURETOR ADJUSTMENT. _ _. _ _ _ 3-15
THROTTLE CABLE ADJUSTMENT _ 3-15
SPEED LIMITER ADJUSTMENT 3-17
CHOKE CABLE ADJUSTMENT.. _ , " .3-18
FUEL PUMP INSPECTION _.. _ 3-19
FUEL FILTER INSPECTION _ _ 3-21
FUEL HOSE INSPECTION _ _ 3-21
INTRODUCTION _ 3-1
COWLING BODY 3-7
SEAT COWLING OPENING " 3-7
REAR COWLING REMOVAL " 3-7
JACK-UP _ 3-6
FRONT SIDE _ , 3-6
REAR SIDE 3-6
PERIODIC MAINTENANCE TABLE 3-1
FOR G2-A " ., 3-1
FOR G2-E " 3-4
I
iI
I
FRONT WHEEL BEARING INSPECTION 3-35
REAR AXLE BEARING INSPECTION 3-35
SHOCK ABSORBER INSPECTION " 3-35
ELECTRICAL (FOR G2-A) 3-36
SPARK PLUG INSPECTION 3-36
STARTER BELT INSPECTION _" ' 3-37
BATTERY INSPECTION " 3-38
BATTERY CHARGING " 3-39
ACCELERATOR STOP SWITCH ADJUSTMENT 3-40
ELECTRICAL (FOR G2-E) 3-41
BATTERY CHARGING .. , , '" 3-41
BATTERY INSPECTION 3-44
SPEED CONTROLLER INSPECTION 3-46
SOLENOID RELAY INSPECTION 3-49
TRACTION MOTOR INSPECTION _.. 3-51
CABLE ROUTING INSPECTION , " " 3-51
FUSE 3-51
CHAPTER 4.
ENGINE OVERHAUL
ENGINE REMOVAL , " .. , 4-1
PREPARATION FOR REMOVAL , 4-1
DRIVE BELT 4-2
CARBURETOR , 4-2
AIR CLEANER CASE 4-2
LEAD AND HOSE 4-3
MUFFLER '" 4-3
ENGINE REMOVAL 4-3
ENGINE DISASSEMBLY , 4-4
STARTER-GENERATOR. , " 4-4
AI R SHOUD 4-4
CYLINDER HEAD , 4-5
PRIMARY SHEAVE , .. , .. , ' 4-6
FLYWHEEL (Cooling Fan) 4-7
CRANKCASE COVER , , " , .4-7
CAMSHAFT 4-8
BALANCER SHAFT AND CRANKSHAFT , '" 4-8
PISTON AND CONNECTING ROD 4-8
ENGINE BRACKET 4-9
INSPECTION AND PREPAIR 4-9
CYLINDER HEAD " ., , '" 4-9
VALVE 4-11
VALVE SEAT " ., 4-12
VALVE INSTALLATION 4-16
ROCKER ARM, ROCKER ARM SHAFT AND
ROCKER ARM SHAFT SUPPORT 4-17
CAMSHAFT 4-18
GEARS 4-19
CYLINDER AND PISTON " 4-19
PISTON RING AND PISTON PIN 4-20
CRANKSHAFT AND CONNECTING ROD 4-23
ENGINE ASSEMBL Y AND ADJUSTMENT 4-27
ENGINE BRACKET 4-27
CRANKSHAFT, CAMSHAFT AND BALANCER SHAFT 4-27
PISTON AND CONNECTING ROD 4-28
CRANKCASE COVER 4-32
FLYWHEEL " 4-32
PRIMARY SHEAVE " 4-33
CYLINDER HEAD , 4-33
AIR SHROUD 4-35
STARTER-GENERATOR '" . 4-37
REMOUNTING ENGINE 4-38
CHAPTER 5.
CARBURETION
CARBURETOR 5-1
SECTION ViEW 5-2
REMOVAL 5-4
DISASSEMBLY 5-4
INSPECTION 5-5
ASSEMBLY 5-6
INSTALLATION 5-7
FUEL PUMP 5-8
OVERHAULING " , 5-9
CHAPTER 6.
POWER TRAIN (FOR G2-Al
PRIMARY SHEAVE , 6-1
REMOVAL _ 6-2
DiSASSEMBLy 6-2
INSPECTION 6-3
ASSEMBLY _ _. _ 6-3
INSTALLATION 6-4
SECONDARY SHEAVE , .. 6-6
DISASSEMBLY _ 6-7
INSPECTION 6-8
ASSEMBLY , 6-8
~
GEN
INFO
SPEC
INSP
ADJ
ENG
CARB
CHAS
ELEC
TRBL
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DRIVE V-BELT 6-10
INSPECTION AND REPLACEMENT 6-10
TRANSMISSION 6-12
REMOVAL 6-12
DiSASSEMBLy 6-13
INSPECTION 6-14
ASSEMBLy 6-15
INSTALLATION , 6-16
POWER TRAIN (FOR G2-E)
TRANSMISSION 6-18
REMOVAL 6-19
DISASSEMBLY 6-19
INSPECTION 6-21
ASSEMBLY 6-21
iNSTALLATION , 6-22
CHAPTER 7.
CHASSIS
H" 7-16
REMOVAL 7-17
DISASSEMBLY 7-18
INSPECTION 7-18
ASSEMBLY 7-20
INSTALLATION 7-20
CARB
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ELECTRICAL (FOR G2-El
SIGNAL SYSTEM 8-73
TROUBLESHOOTING 8-75
G2-E CIRCUIT DIAGRAM 8-43
ELECTRICAL COMPONENTS 8-45
STARTING AND RECHARGING SySTEM , 8-47
TROUBLESHOOTING 8-49
G.E. TRACTION MOTOR _. 8-54
HITACHI TRACTION MOTOR 8-61
SPEED CONTROLLER 8-67
SOLENOID RELAy 8-69
CHARGING RECEPTACLE ·8-71
CHAPTER 8.
ELECTRICAL (FOR G2-Al
CAB LES 7-32
CABLE MAINTENANCE 7-32
FRONT SUSPENSION AND KNUCKLE 7-23
REMOVAL 7~4
INSPECTION " " 7-26
INSTALLATION , 7-26
REAR SUSPENSION 7-28
REMOVAL 7-30
INSPECTION , ., , 7-31
INSTALLATION 7-31
ELECTRICAL COMPONENTS 8-3
IGNITION SYSTEM _ 8-27
TROUBLESHOOTING 8-29
INSP
G2-A CIRCUIT DIAGRAM 8-1 :=A=D=J~~~~
SIGNAL SYSTEM 8-35
TROUBLESHOOTING 8-37
STARTING AND CHARGING SYSTEM 8-5 ENG
TROUBLESHOOTING 8-7
STARTER-GENERATOR.. " _ '" 8-15
SOLENOID RELAy 8-22
VOLTAGE REGULATOR 8-25
CHAPTER 9.
TROUBLESHOOTING
TROUBLESHOOTING CHART (FOR G2-A) 9-1
ENGINE (FOR G2-A) 9-2
SUSPENSION AND STEERING 9-3
ELECTRICAL (FOR G2-A) 9-4
STARTER-GENERATOR (FOR G2-A) " 9-4
ELECTRICAL (FOR G2-E) _.' 9-5
MOTOR (FOR G2-E) _ _ 9-7
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CAR IDENTIFICATION I~EF"bI~1
GENERAL
INFORMATION
CAR IDENTIFICATION
FRAME SERIAL NUMBER
The frame serial number CD is located on the
rectangular pipe under the operator's seat.
or on the right hand side of the rectangular
pipe by the rear bumper.
Starting Serial Number:
G2·A J38-000101
JA2-000101
J55-000101
G2-E J41·000101
JE2-000101
J56-000101
NOTE: _
The first three digits of these numbers are for
model identifications; the remaining digits are
the unit production number.
ENGINE SERIAL NUMBER
The engine serial number CD is located on the
1eft-hand side of crank case.
Starting Serial Number:
G2·A J38·0001 01
JA2-000101
J55·000101
NOTE: _
Designs and specifications are subject to change
without notice.
1-1
D
IMPORTANT INFORMATION
GEN ~d~
INFO~
IMPORTANT INFORMATION
NO FLAME SOURCES
1. Avoid any flame sources in the service shop.
WASHING AND CLEANING
1. Thoroughly clean the exterior of the car
body and engine. While cleaning, take care
to protect the electrical parts, such as relay
switches, motor, resistors, controllers, etc.,
from high pressure water splashes.
RIGHT TOOLS
1. Be sure to use the right special tool for the
right part in order to protect the part from
damage. Always use the right tool and the
right instrument.
MAKING IT NEAT
1. Keep the removed parts separately in groups
so that they will not be misplaced or
confused.
TIGHTENING TORQUE
1. Be sure to keep to tightening torque
specifications. When tightening bolts, nuts,
and screws, start with a larger-diameter one
and from an inner-positioned one to an
outer-positioned one in a criss-cross pattern.
Refer to CHAPTER 2. "TIGHTENING
TORQUE".
1-2
GEN
~4
IMPORTANT INFORMATION INFO
ALL REPLACEMENT PARTS
1_ We recommend you use Yamaha genuine
"'- parts for all replacements. Use oil and/or
m
grease recommended by Yamaha for assem-
bly and adjustment.·
- c(er: ]
............
GASKETS, OIL SEALS, AND a-RINGS
1. All gaskets, seals, and O-rings should be
replaced when an engine is overhauled. All
gasket surfaces, oil seal lips, and O-rings
must be cleaned.
--+t-~"
LOCK WASHERS/PLATES AND COTTER PINS
1. All lock washers/plates CD and cotter
pins must be replaced when they are re-
moved. Lock tabls) should be bent along
the bolt or nut tlatls) after the bolt or nut
has been properly tightened.
BEARINGS AND OIL SEALS
1. Install the bearing(s) CD and oil sealts) @
with their manufacturer's marks or numbers
facing outward. !In other words, the
stamped letters must be on the side exposed
to view.) When installing oil sealls), apply a
light coating of light-weight lithium base
grease to the seal lip(sl. Oil the bearings
liberally when installing.
Do not use compressed air to spin the bearings
dry. This causes damage to the bearing surfaces,
IMPORTANT INFORMATION
GEN ~ dr
INFO~
3000(11
1-4
CIRCLIPS
1. All circlips should be inspected carefully
before reassembly. Always replace piston
pin clips after one use. Replace distorted
circlips. When installing a circlip CD, make
sure that the sharp-edged corner CV IS
positioned opposite to the thrust ® it
receives. See the sectional view.
® Shaft
NOTES ON DISASSEMBLY AND ASSEMBLY
1. Parts should be cleaned and blown off with
compressed air whenever they are dis-
assembled.
2. Contact surfaces of moving parts should
be oiled when they are assembled. Apply
grease to the oil seal lips.
3. After assemb ling, make sure each of the
moving parts operates normally.
1-5
SPECIAL TOOLS
SPECIAL TOOLS
The proper special tools are necessary for com-
plete and accurate tune-up and assembly. Using
the correct special tool )Nill help prevent damage
caused by the use of improper tools or improvis-
ed techniques.
FOR TUNE UP
1. Inductive Tachometer
PIN YU-08036, 90890-03113
This tool is needed for detecting engine rpm.
2. Compression Gauge
PIN YU-33223, 90890-03081
This gauge is used to measure the engine com-
pression.
FOR ENGINE SERVICE
1. Heavy-Duty Universal Puller
PIN YU-33270, 90890-01362
This tool is used to remove the flywheel.
2. Valve Spring Compressor
PIN YM-04019, 90890-01253
This tool is needed to remove and install the
valve assemblies.
Thank you very much for
your reading. Please Click
Here. Then Get COMPLETE
MANUAL. NO WAITING
NOTE:
If there is no response to
click on the link above,
please download the PDF
document first and then
click on it.
GEN
~
SPECIAL TOOLS INFO
~ 3. Valve Seat Cutter Set
'r:l ~ ~
piN YM-91043
This tool is used to resurface the valve seat.
6J I
i(lIJi)[]
litS
4. Valve Adjuster
PIN YM·08035, 90890-01311
This tool is used to adjust the valve clearance.
1-6
FOR POWER TRAIN
1. Primary Sheave Holder
PIN YS-01880, 90890-01701
Th is tool is used to hold the primary sheave
when removing or installing the primary sheave
securing bolt.
2. Primary Sheave Puller
PIN YG-01876, 90890-01876
This tool is used for removing the pnmary
sheave.
3. Secondary Sheave Holder
PIN YG-40103, 9089001705
This tool is used to compress the sheave spring
when removing or installing the secondary
sheave securing nut.
1-7
5. Plastigage@ Set "Green"
PIN YU-3321 0
This gauge is needed to measure the clearance
for the connecting rod bearing and the crank
shaft bearing.
FOR CHASSIS SERVICE
1. Drift punch (6 mm) or Valv.e Guide Re-
mover
PIN YM-04064, 90890-04064
This tool is used to remove the spring pins for
steering knuckle.
2. Dial Gauge
PIN YU-03097, 90890-03097
This tool is used to measure small movement
or runout such as the rear axle deflection.
3. Cable Injector
PIN ACC-llll0-43-15, 90890-70054
This tool is used to lubricate the throttle, shifter
and brake cables.
SPECIAL TOOLS
GEN .,. dr
INFO~
1-8
FOR ELECTRICAL COMPONENTS
1. Pocket Tester
PIN YS-03112. 90890-03112
This instrument IS invaluable for checking the
electrical system.
2. Hydrometer
PIN YU-03036, 90890-03036
This gauge is used to measure the specific
gravity of battery electrolyte.
3. Low Reading Ohmmeter
PIN YU-91026, 90890-03064
This instrument is use to measure the low range
resistance (Q - 1[1) of the electrical components.
4. Dynamic Spark Tester
PIN. YM-34487, 90890-03144
This tester is necessary for checking the ignition
system components.

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Yamaha G2-E Golf Cart Service Repair Manual.pdf

  • 2. INDEX CARS ~ GEN INFO SPEC If!a 1---- INSP ADJ .... 1-----= I---.,;f SPECIFICATIONS GENERAL INFORMATION CARBURETION PERIODIC INSPECTION AND ADJUSTMENT ENGINE OVERHAUL ®I!0 1--- POWR TR CHASSIS POWER TRAIN ELECTRICAL ICHAS~ ~=========================~ IHEeD TROUBLESHOOTING
  • 3. CONTENTS CHAPTER 1. GENERAL INFORMATION CAR IDENTIFiCATION 1-1 FRAME SERIAL NUMBER 1-1 ENGINE SERIAL NUMBER (FOR G2-Al 1-1 IMPORTANT INFORMATION 1-2 NO FLAME SOURCES 1-2 WASHING AND CLEANING 1-2 RIGHT TOOLS 1-2 MAKING IT NEAT 1-2 TIGHTENING TORQUE 1-2 ALL REPLACEMENT PARTS 1-3 GASKETS, OIL SEALS, AND O-RINGS 1-3 LOCK WASHERS/PLATES AND COTTER PINS _ 1-3 BEARINGS AND OIL SEALS 1-3 CIRCLlPS _ 1-4 NOTES ON DISASSEMBLY AND ASSEMBLY 1-4 SPECIAL TOOLS _ 1-5 FOR TUNE UP 1-5 FOR ENGINE SERVICE 1-5 FOR POWER TRAIN 1-6 FOR CHASSIS SERVICE , 1-7 FOR ELECTRICAL COMPONENTS 1-8 CHAPTER 2. SPECIFICATIONS GENERAL SPECIFICATIONS 2-1 FOR G2-A. 2-1 FOR G2-E , _ 2-1 MAINTENANCE SPECIFICATIONS 2-2 ENGINE 2-2 TRANSMISSION 2-7 CHASSIS _ 2-9 ELECTR ICAL. 2-12 GENERAL TORQUE SPECIFICATIONS 2-17 DEFINITION OF UNITS , 2-17 CABLE ROUTING (FOR G2-Al. 2-18 CABLE ROUTING (FOR G2-El 2-20
  • 4. CHAPTER 3. PERIODIC INSPECTION AND ADJUSTMENT I SPEC ENG CHAS ELEC CARB TRBL SHTG f--_®I---,C!0 POWR TR ? 1----.;- .( '"£. I---=- GEN INFO POWER TRAIN. _ _ 3-22 TRANSMISSION 01L LEVEL MEASUREMENT _ 3-22 TRANSMISSION OIL REPLACEMENT _ _ _.3-22 DRIVE BELT INSPECTION (FOR G2-A) _ 3-23 PRIMARY SHEAVE LUBRICATION (FOR G2-A) 3-24 SHEAVE INSPECTION , 3-25 SHIFTING CABLE ADJUSTMENT (FOR G2-A) 3-25 CHASSIS 3-26 BRAKE CABLE INSPECTION 3-26 PARKING BRAKE ADJUSTMENT _ 3-27 SHOE LINING INSPECTION , _ , 3-27 BRAKE AND ACCELERATOR PEDALS 3-29 STEERING INSPECTION.. " _ , 3-30 STEERING LINKAGE INSPECTION , ., '" . 3-33 WHEEL ALIGNMENT 3-33 TIRE AND WHEEL INSPECTION , 3-34 ENGINE (FOR G2-A) 3-8 VALVE CLEARANCE ADJUSTMENT ' 3-8 ENGINE OIL LEVEL MEASUREMENT 3-10 ENGINE OIL REPLACEMENT 3-10 OIL DELIVERY HOSE INSPECTION __ 3-11 AIR FILTER CLEANING _ " _ " .3-12 ENGINE BRACKET ADJUSTMENT _ 3-13 COMPRESSION PRESSURE MEASUREMENT _ 3-13 CARBURETOR ADJUSTMENT. _ _. _ _ _ 3-15 THROTTLE CABLE ADJUSTMENT _ 3-15 SPEED LIMITER ADJUSTMENT 3-17 CHOKE CABLE ADJUSTMENT.. _ , " .3-18 FUEL PUMP INSPECTION _.. _ 3-19 FUEL FILTER INSPECTION _ _ 3-21 FUEL HOSE INSPECTION _ _ 3-21 INTRODUCTION _ 3-1 COWLING BODY 3-7 SEAT COWLING OPENING " 3-7 REAR COWLING REMOVAL " 3-7 JACK-UP _ 3-6 FRONT SIDE _ , 3-6 REAR SIDE 3-6 PERIODIC MAINTENANCE TABLE 3-1 FOR G2-A " ., 3-1 FOR G2-E " 3-4 I iI I
  • 5. FRONT WHEEL BEARING INSPECTION 3-35 REAR AXLE BEARING INSPECTION 3-35 SHOCK ABSORBER INSPECTION " 3-35 ELECTRICAL (FOR G2-A) 3-36 SPARK PLUG INSPECTION 3-36 STARTER BELT INSPECTION _" ' 3-37 BATTERY INSPECTION " 3-38 BATTERY CHARGING " 3-39 ACCELERATOR STOP SWITCH ADJUSTMENT 3-40 ELECTRICAL (FOR G2-E) 3-41 BATTERY CHARGING .. , , '" 3-41 BATTERY INSPECTION 3-44 SPEED CONTROLLER INSPECTION 3-46 SOLENOID RELAY INSPECTION 3-49 TRACTION MOTOR INSPECTION _.. 3-51 CABLE ROUTING INSPECTION , " " 3-51 FUSE 3-51 CHAPTER 4. ENGINE OVERHAUL ENGINE REMOVAL , " .. , 4-1 PREPARATION FOR REMOVAL , 4-1 DRIVE BELT 4-2 CARBURETOR , 4-2 AIR CLEANER CASE 4-2 LEAD AND HOSE 4-3 MUFFLER '" 4-3 ENGINE REMOVAL 4-3 ENGINE DISASSEMBLY , 4-4 STARTER-GENERATOR. , " 4-4 AI R SHOUD 4-4 CYLINDER HEAD , 4-5 PRIMARY SHEAVE , .. , .. , ' 4-6 FLYWHEEL (Cooling Fan) 4-7 CRANKCASE COVER , , " , .4-7 CAMSHAFT 4-8 BALANCER SHAFT AND CRANKSHAFT , '" 4-8 PISTON AND CONNECTING ROD 4-8 ENGINE BRACKET 4-9 INSPECTION AND PREPAIR 4-9 CYLINDER HEAD " ., , '" 4-9 VALVE 4-11 VALVE SEAT " ., 4-12 VALVE INSTALLATION 4-16
  • 6. ROCKER ARM, ROCKER ARM SHAFT AND ROCKER ARM SHAFT SUPPORT 4-17 CAMSHAFT 4-18 GEARS 4-19 CYLINDER AND PISTON " 4-19 PISTON RING AND PISTON PIN 4-20 CRANKSHAFT AND CONNECTING ROD 4-23 ENGINE ASSEMBL Y AND ADJUSTMENT 4-27 ENGINE BRACKET 4-27 CRANKSHAFT, CAMSHAFT AND BALANCER SHAFT 4-27 PISTON AND CONNECTING ROD 4-28 CRANKCASE COVER 4-32 FLYWHEEL " 4-32 PRIMARY SHEAVE " 4-33 CYLINDER HEAD , 4-33 AIR SHROUD 4-35 STARTER-GENERATOR '" . 4-37 REMOUNTING ENGINE 4-38 CHAPTER 5. CARBURETION CARBURETOR 5-1 SECTION ViEW 5-2 REMOVAL 5-4 DISASSEMBLY 5-4 INSPECTION 5-5 ASSEMBLY 5-6 INSTALLATION 5-7 FUEL PUMP 5-8 OVERHAULING " , 5-9 CHAPTER 6. POWER TRAIN (FOR G2-Al PRIMARY SHEAVE , 6-1 REMOVAL _ 6-2 DiSASSEMBLy 6-2 INSPECTION 6-3 ASSEMBLY _ _. _ 6-3 INSTALLATION 6-4 SECONDARY SHEAVE , .. 6-6 DISASSEMBLY _ 6-7 INSPECTION 6-8 ASSEMBLY , 6-8 ~ GEN INFO SPEC INSP ADJ ENG CARB CHAS ELEC TRBL SHTG
  • 7. DRIVE V-BELT 6-10 INSPECTION AND REPLACEMENT 6-10 TRANSMISSION 6-12 REMOVAL 6-12 DiSASSEMBLy 6-13 INSPECTION 6-14 ASSEMBLy 6-15 INSTALLATION , 6-16 POWER TRAIN (FOR G2-E) TRANSMISSION 6-18 REMOVAL 6-19 DISASSEMBLY 6-19 INSPECTION 6-21 ASSEMBLY 6-21 iNSTALLATION , 6-22 CHAPTER 7. CHASSIS H" 7-16 REMOVAL 7-17 DISASSEMBLY 7-18 INSPECTION 7-18 ASSEMBLY 7-20 INSTALLATION 7-20
  • 8. CARB ELEC CHAS TRBL SHTG ? I---=~_. .t' d~ I--::G::-::E""'N:- INFO SPEC ~ 1---- POWR TR ELECTRICAL (FOR G2-El SIGNAL SYSTEM 8-73 TROUBLESHOOTING 8-75 G2-E CIRCUIT DIAGRAM 8-43 ELECTRICAL COMPONENTS 8-45 STARTING AND RECHARGING SySTEM , 8-47 TROUBLESHOOTING 8-49 G.E. TRACTION MOTOR _. 8-54 HITACHI TRACTION MOTOR 8-61 SPEED CONTROLLER 8-67 SOLENOID RELAy 8-69 CHARGING RECEPTACLE ·8-71 CHAPTER 8. ELECTRICAL (FOR G2-Al CAB LES 7-32 CABLE MAINTENANCE 7-32 FRONT SUSPENSION AND KNUCKLE 7-23 REMOVAL 7~4 INSPECTION " " 7-26 INSTALLATION , 7-26 REAR SUSPENSION 7-28 REMOVAL 7-30 INSPECTION , ., , 7-31 INSTALLATION 7-31 ELECTRICAL COMPONENTS 8-3 IGNITION SYSTEM _ 8-27 TROUBLESHOOTING 8-29 INSP G2-A CIRCUIT DIAGRAM 8-1 :=A=D=J~~~~ SIGNAL SYSTEM 8-35 TROUBLESHOOTING 8-37 STARTING AND CHARGING SYSTEM 8-5 ENG TROUBLESHOOTING 8-7 STARTER-GENERATOR.. " _ '" 8-15 SOLENOID RELAy 8-22 VOLTAGE REGULATOR 8-25
  • 9. CHAPTER 9. TROUBLESHOOTING TROUBLESHOOTING CHART (FOR G2-A) 9-1 ENGINE (FOR G2-A) 9-2 SUSPENSION AND STEERING 9-3 ELECTRICAL (FOR G2-A) 9-4 STARTER-GENERATOR (FOR G2-A) " 9-4 ELECTRICAL (FOR G2-E) _.' 9-5 MOTOR (FOR G2-E) _ _ 9-7
  • 10. .""'''';:'' ~···';i·;',t;if,~r-~;:~,··'···, '.,'{e;' ..::/, 'C", CAR IDENTIFICATION I~EF"bI~1 GENERAL INFORMATION CAR IDENTIFICATION FRAME SERIAL NUMBER The frame serial number CD is located on the rectangular pipe under the operator's seat. or on the right hand side of the rectangular pipe by the rear bumper. Starting Serial Number: G2·A J38-000101 JA2-000101 J55-000101 G2-E J41·000101 JE2-000101 J56-000101 NOTE: _ The first three digits of these numbers are for model identifications; the remaining digits are the unit production number. ENGINE SERIAL NUMBER The engine serial number CD is located on the 1eft-hand side of crank case. Starting Serial Number: G2·A J38·0001 01 JA2-000101 J55·000101 NOTE: _ Designs and specifications are subject to change without notice. 1-1 D
  • 11. IMPORTANT INFORMATION GEN ~d~ INFO~ IMPORTANT INFORMATION NO FLAME SOURCES 1. Avoid any flame sources in the service shop. WASHING AND CLEANING 1. Thoroughly clean the exterior of the car body and engine. While cleaning, take care to protect the electrical parts, such as relay switches, motor, resistors, controllers, etc., from high pressure water splashes. RIGHT TOOLS 1. Be sure to use the right special tool for the right part in order to protect the part from damage. Always use the right tool and the right instrument. MAKING IT NEAT 1. Keep the removed parts separately in groups so that they will not be misplaced or confused. TIGHTENING TORQUE 1. Be sure to keep to tightening torque specifications. When tightening bolts, nuts, and screws, start with a larger-diameter one and from an inner-positioned one to an outer-positioned one in a criss-cross pattern. Refer to CHAPTER 2. "TIGHTENING TORQUE". 1-2
  • 12. GEN ~4 IMPORTANT INFORMATION INFO ALL REPLACEMENT PARTS 1_ We recommend you use Yamaha genuine "'- parts for all replacements. Use oil and/or m grease recommended by Yamaha for assem- bly and adjustment.· - c(er: ] ............ GASKETS, OIL SEALS, AND a-RINGS 1. All gaskets, seals, and O-rings should be replaced when an engine is overhauled. All gasket surfaces, oil seal lips, and O-rings must be cleaned. --+t-~" LOCK WASHERS/PLATES AND COTTER PINS 1. All lock washers/plates CD and cotter pins must be replaced when they are re- moved. Lock tabls) should be bent along the bolt or nut tlatls) after the bolt or nut has been properly tightened. BEARINGS AND OIL SEALS 1. Install the bearing(s) CD and oil sealts) @ with their manufacturer's marks or numbers facing outward. !In other words, the stamped letters must be on the side exposed to view.) When installing oil sealls), apply a light coating of light-weight lithium base grease to the seal lip(sl. Oil the bearings liberally when installing. Do not use compressed air to spin the bearings dry. This causes damage to the bearing surfaces,
  • 13. IMPORTANT INFORMATION GEN ~ dr INFO~ 3000(11 1-4 CIRCLIPS 1. All circlips should be inspected carefully before reassembly. Always replace piston pin clips after one use. Replace distorted circlips. When installing a circlip CD, make sure that the sharp-edged corner CV IS positioned opposite to the thrust ® it receives. See the sectional view. ® Shaft NOTES ON DISASSEMBLY AND ASSEMBLY 1. Parts should be cleaned and blown off with compressed air whenever they are dis- assembled. 2. Contact surfaces of moving parts should be oiled when they are assembled. Apply grease to the oil seal lips. 3. After assemb ling, make sure each of the moving parts operates normally.
  • 14. 1-5 SPECIAL TOOLS SPECIAL TOOLS The proper special tools are necessary for com- plete and accurate tune-up and assembly. Using the correct special tool )Nill help prevent damage caused by the use of improper tools or improvis- ed techniques. FOR TUNE UP 1. Inductive Tachometer PIN YU-08036, 90890-03113 This tool is needed for detecting engine rpm. 2. Compression Gauge PIN YU-33223, 90890-03081 This gauge is used to measure the engine com- pression. FOR ENGINE SERVICE 1. Heavy-Duty Universal Puller PIN YU-33270, 90890-01362 This tool is used to remove the flywheel. 2. Valve Spring Compressor PIN YM-04019, 90890-01253 This tool is needed to remove and install the valve assemblies.
  • 15. Thank you very much for your reading. Please Click Here. Then Get COMPLETE MANUAL. NO WAITING NOTE: If there is no response to click on the link above, please download the PDF document first and then click on it.
  • 16. GEN ~ SPECIAL TOOLS INFO ~ 3. Valve Seat Cutter Set 'r:l ~ ~ piN YM-91043 This tool is used to resurface the valve seat. 6J I i(lIJi)[] litS 4. Valve Adjuster PIN YM·08035, 90890-01311 This tool is used to adjust the valve clearance. 1-6 FOR POWER TRAIN 1. Primary Sheave Holder PIN YS-01880, 90890-01701 Th is tool is used to hold the primary sheave when removing or installing the primary sheave securing bolt. 2. Primary Sheave Puller PIN YG-01876, 90890-01876 This tool is used for removing the pnmary sheave. 3. Secondary Sheave Holder PIN YG-40103, 9089001705 This tool is used to compress the sheave spring when removing or installing the secondary sheave securing nut.
  • 17. 1-7 5. Plastigage@ Set "Green" PIN YU-3321 0 This gauge is needed to measure the clearance for the connecting rod bearing and the crank shaft bearing. FOR CHASSIS SERVICE 1. Drift punch (6 mm) or Valv.e Guide Re- mover PIN YM-04064, 90890-04064 This tool is used to remove the spring pins for steering knuckle. 2. Dial Gauge PIN YU-03097, 90890-03097 This tool is used to measure small movement or runout such as the rear axle deflection. 3. Cable Injector PIN ACC-llll0-43-15, 90890-70054 This tool is used to lubricate the throttle, shifter and brake cables.
  • 18. SPECIAL TOOLS GEN .,. dr INFO~ 1-8 FOR ELECTRICAL COMPONENTS 1. Pocket Tester PIN YS-03112. 90890-03112 This instrument IS invaluable for checking the electrical system. 2. Hydrometer PIN YU-03036, 90890-03036 This gauge is used to measure the specific gravity of battery electrolyte. 3. Low Reading Ohmmeter PIN YU-91026, 90890-03064 This instrument is use to measure the low range resistance (Q - 1[1) of the electrical components. 4. Dynamic Spark Tester PIN. YM-34487, 90890-03144 This tester is necessary for checking the ignition system components.