Jonway 50CC ENGINE Jonway 50CC ENGINE

YYGY0500100

YYGY0500108

Rubber Plug Cap, Cramming Scre

GB/T5787-M6×15

GB/T5787-M6×15

Flange Bolt, M6×15

Draft 1

JONWAY 50CC ENGINE PARTS CATALOGUE

VENTILATION SYSTEM

Flange Bolt, M6×15

Cover, Fa n

GB/T5787-M6×25

Flange Bolt M6×25

图 1

NO. Q

YYGY0500101

1 1

Part NO. Chinese Name Description

2 4

YYGY0500102

3 1

YYGY0500103

4 1

YYGY0500104

5 1

YYGY0500105

6 1

7 1

GB/T845-ST2.9×8

8 2

YYGY0500106

9 1

YYGY0500105

10 1

GB/T5789-M6×15

11 1

12 1

YYGY0500107

13 1

GB/T9456-ST4.8×16

14 2

15 1

YYGY0500109

16 1

GB/T5787-M6×25

17 2

风扇及导风系统

风扇叶轮
法兰螺栓M6×15
节流导线夹
上导流罩
涨紧器螺钉橡胶盖
夹片M6
法兰螺栓M6×15
自攻螺钉ST2.9×8
下导流罩
夹片M6
法兰螺栓M6×15
法兰螺栓M6×25

缸头大垫圈（橡胶件）

十字槽凹穴六角头自攻螺钉ST4.8×16

风扇罩
观察孔盖
法兰螺栓M6×25

JONWAY 50CC ENGINE

Fan

Clip, Overflow Tube A
Upper Shroud

Screw, Tapping ST2.9×8
Lower Shroud

Flange Bolt, M6×15

Large Gasket, Cylinder Head
Hex Screw, Tapping ST4.8×16

Observing Hole Cap
Flange Bolt M6×25

TY

第 1 页

JONWAY 50CC ENGINE

图 2

CYLINDER HEAD COVER CO

YYGY0500201

Cover, Cylinder Head

Flange Bolt M6×25

GB/T5787-M6×25

Draft 2

气缸头盖

YYGY0500200

NO. Q

Part NO.

1

YYGY0500202

2 1

YYGY0500203

3

YYGY0500204

4

GB/T845-ST3.5×8

5
6

YYGY0500205

7

YYGY0500206

8

YYGY0500207

9

Chinese Name

气缸头盖
通气压板纸垫
通气压板
气缸头盖密封圈
自攻螺钉ST3.5×8
法兰螺栓M6×25
通气管接头
通气管
通气管卡簧

Description

Paper Gasket, Breather Plate
Breather Plate
Gasket, Cylinder Head Cover
Screw, Tapping ST3.5×8

Joint, Breather Tube
Breather Tube
Clip, Breather Tube

TY

1

1

1

4

4

1

1

2

第 2 页

YYGY0500323

Camshaft

YYGY0500327

Oil Seal, Valve Stem

Cotter, Valve

YYGY0500309

Holder, Rocker Arm

Guider, Cam Timing Chain

Insulator, Carburetor

YYGY0500314

YYGY0500319

图 3

JONWAY 50CC ENGINE

YYGY0500304

气缸头

CYLINDER HEAD COMPDraft 3 YYGY0500300

NO. QTY

YYGY0500301

1

YYGY0500302

2

YYGY0500303

3
4

YYGY0500305

5

YYGY0500306

6

YYGY0500307

7

YYGY0500308

8
9

YYGY0500310

10

YYGY0500311

11

YYGY0500312

12 1

YYGY0500313

13
14

YYGY0500315

15

YYGY0500316

16

YYGY0500317

17

YYGY0500318

18
19

YYGY0500320

20 4

YYGY0500321

21 4

GB/T5787-M6×85

22

YYGY0500322

23
24

YYGY0500324

25 1

YYGY0500325

26

GB/T6177.1-M6

27

YYGY0500326

28 1
29 1

Part NO. Chinese Name

气缸头
进气门
排气门
气门油封
垫片（气门弹簧）
气门内弹簧
气门外弹簧
保持器（气门弹簧）
锁片（气门弹簧）
进气口双头螺柱M6×63
排气口双头螺柱M6×32
火花塞
定位销φ8×φ7×14
凸轮轴
摇臂总成
摇臂
进气摇臂销
排气摇臂销
摇臂架
铜垫圈φ7
螺母M7
法兰螺栓M6×85
气缸头钢垫片
导杆
进气管
卡箍
法兰螺母M6
进气管垫
隔热板

Cylinder Head
Valve, In.
Valve, Ex.

Washer, Valve Spring
Spring, Valve Inner
Spring, Valve Outer
Retainer, Valve Spring

Bolt, In. Valve Stud M6×63
Bolt, Ex. Valve Stud M6×32
Spark Plug
Pin, Dowel φ8×φ7×14

Rocker Arm Assy
Valve Rocker Arm
Pin, In. Rocker Arm
Pin, In. Rocker Arm

Plain Washer, φ7

Nut, M7
Flange Bolt, M6×85
Steel Gasket, Cylinder Head

Intake Pipe
Fixing Ring, Intake Pipe
Flange Nut, M6
Gasket, Intake Pipe

Description

1

1

1

2

2

2

2

2

4

2

2

2

1

1

2

1

1

1

2

1

1

1

2

第 3 页

Pin, Dowel φ8×φ7×14

Flange Bolt, M6×15

Adjusting Assy, Cam Timing Cha

图 4

JONWAY 50CC ENGINE

GB/T5787-M6×15

YYGY0500401

气缸体

Draft 4 CYLINDER COMP

YYGY0500400

NO. QTY

Part NO.

1

YYGY0500402

2

YYGY0500403

3

YYGY0500404

4

YYGY0500405

5
6

YYGY0500406

7

YYGY0500407

8

Chinese Name

定位销φ8×φ7×14
气缸体纸垫
气缸体
调整器垫片
调整器
法兰螺栓M6×15
调整器弹簧
螺栓M8×10

Paper Gasket, Cylinder
Cylinder
Gasket, Adjusting

Description

2

1

1

1

1

2

1

1

第 4 页

图 5

YYGY0500501

GB/T5787-M6×100

Cover, R. Crankcase

Oil Filter Screen

Oil Level Gauge

Oil Seal, 16.4×30 ×5

Spring, Oil Filter Screen

Oil Filter Cap

Bolt, M6×85

JONWAY 50CC ENGINE

YYGY0500505

Bolt, M6×100

Draft 5

右盖

RIGHT COVER COMP

YYGY0500500

NO. Q

1 1
2

GB3452.1-φ19
YYGY0500502

3

YYGY0500503

4

YYGY0500504

5
6

YYGY0500506

7

YYGY0500507

8

GB9877-16.4×30×5

9

GB/T5787-M6×85

10
11

Part NO.

Chinese Name

右盖
机油尺密封圈φ19
机油尺
滤网
滤网弹簧
滤网盖
定位销φ8×φ7×14
右盖纸垫
右盖油封16.4×30×5
螺栓M6×85
螺栓M6×100

Seal O-Ring, Oil Level Gauge, φ19

Pin, Dowel φ8×φ7×14

Paper Gasket, R.Crankcase Cover

Description

TY

1

1

1

1

1

2

1

1

4

4

第 5 页

图 6

YYGY0500601

Right Crankcase Assy

JONWAY 50CC ENGINE

YYGY0500605

Draft 6

右箱体

RIGHT CRANKCASE COMP

YYGY0500600

NO. QTY

Part NO.

1

YYGY0500602

2

YYGY0500603

3

YYGY0500604

4
5
6

GB/T5787-M6×50

7

YYGY0500606

8

Chinese Name

右箱体
定位销φ8×14
吊架缓冲套
主支架衬套
密封圈φ10GB3452.1-φ10
双头螺柱M7×165
法兰螺栓M6×50
右箱体纸垫

Pin, Dowel φ8×14
Cushion Collar, Engine Mount

Seal O-Ring, Oil Level Gauge, φ10

Bolt, M7×165

Flange Bolt, M6×50
Paper Gasket, Crankcase

Description

1

2

1

1

2

2

1

1

第 6 页

YYGY0500705

YYGY0500706

GB/T95-M12

YYGY0500704

JONWAY 50CC ENGINE

Bearing, 6203

Tension Stem, Cam Timing Chain

Cushion Collar, Engine Mount

Washer, M12

Bolt, Tension Stem

Cushion Collar, Shock Absorb

图 7

Oil Seal, Gear Box Cap, 27×42×7

GB/T276-6203

左箱体

LEFT CRANKCASE COMPDraft 7

YYGY0500700

YYGY0500701

1 1

GB/T276-6201

2 1
3 1

GB/T276-6303

4 1

YYGY0500702

5 1

YYGY0500703

6 1
7 1

GB9877-17×30×6

8 1

GB9877-19.8×30×5

9 1
10 1
11 1

YYGY0500707

12 1

GB/T5789-M12×15

13 1
14 1

YYGY0500708

15 1

GB/T6187.1-M8

16 1

YYGY0500709

17 2

YYGY0500710

18 1

YYGY0500711

19

GB/T276-6201

20

GB/T276-6004

21 1

GB/T95-φ8

22 2

GB/T5789-M8×12

23 2

YYGY0500712

24

YYGY0500713

25

GB9877-27×42×7

26

GB/T5789-M8×35

27

GB/T5789-M8×40

28

YYGY0500714

29 2

左曲轴箱体
深沟球轴承6201
深沟球轴承6203
深沟球轴承6303
凸轮链条
拉力杆
拉力杆螺栓
油封17×30×6
油封19.8×30×5
减震缓冲套(小减震套)
吊架缓冲套(大减震套)
双撑衬套(大减震套)

机油放油螺栓M12×15

铝垫圈12
刹车蹄块固定销
法兰锁紧螺母M8
缸体双头螺柱M7×185
中撑弹簧固定销
齿轮室盖
深沟球轴承6201
深沟球轴承6004
铝垫圈φ8
放油、进油法兰螺栓M8
定位销φ8×φ6×14
齿轮室纸垫
齿轮室盖油封27×42×7
法兰螺栓M8×35
法兰螺栓M8×40
定位销φ10×φ8×16

Left Crankcase
Bearing, 6201

Bearing, 6303
Timing Chain, Cam

Oil Seal, 17×30×6
Oil Seal, 19.8×30×5

Bolt, Drain Engine Oil, M12×15

Fixing Pin, Brake Shoe
Flange Lock Nut, M8
Bolt, M7×185

Gear Box Cover
Bearing, 6201
Bearing, 6004

Washer, φ8

Flange Bolt, Filling/Draining Gear Oil, M8×12

Pin, Dowel φ8×φ6×14
Paper Gasket, Gear Box

Flange Bolt, M8×35
Flange Bolt, M8×40
Pin, Dowel φ10×φ8×16

1
1

2
1
1
2
5

第 7 页

JONWAY 50CC ENGINE

Pin, Dowel φ8×φ6×14

YYGY0500801

YYGY0500806

图 8

Left Crankcase Cover

Draft 8

左盖

LEFT CRANKCASE COVER

YYGY0500800

NO. QTY

Part NO.

1

YYGY0500802

2

YYGY0500803

3

YYGY0500804

4

YYGY0500805

5

6

YYGY0500807

7

YYGY0500808

8

GB/T5787-M6×35

9

Chinese Name

定位销φ8×φ6×14
左箱盖垫片
刹车导线夹
溢流管夹
节流导线夹
左盖(侧盖)
通气管
通气管卡箍
法兰螺栓M6×35

Description

Gasket, L. Crankcase Cover
Clip, Brake Hose/Cable
Clip, Overflow Tube
Clip, Throttle Cable

Flange Bolt, M6×35

2

1

1

1

1

1

1

1

8

第 8 页

图 9

Circlip, Piston Pin

YYGY0500901

Crankshaft & Connecting Rod Co

JONWAY 50CC ENGINE

YYGY0500906

Draft 9

活塞连杆曲轴

PISTON, CONNECTING ROD AND CRANKSHAFT COMP

YYGY0500900

NO. Q

Part NO.

1 1

YYGY0500902

2 1

YYGY0500903

3 1

YYGY0500904

4 1

YYGY0500905

5 1

6 2

YYGY0500907

7 1

YYGY0500908

8 2

Chinese Name

曲轴连杆总成
活塞环钢环
活塞环碳环
活塞环刮片环/油环组合
活塞
活塞销卡簧
活塞销
半圆键

Steel Ring (1st Ring), Piston
Carbon Ring (2st Ring), Piston
Oil Ring Set, Piston
Piston

Pin, Piston
Semi-circle Key

Description

TY

第 9 页

YYGY0501013

Belt, CVT

YYGY0501001

JONWAY 50CC ENGINE

YYGY0501006

Impeller, Primary Driving System

CVT

图 10

Speed Shift Tray

Driven Mainshaft

YYGY0501009

Draft 10

CVT

YYGY0501000

NO. QTY

Part NO.

1 1

YYGY0501002

2 1

YYGY0501003

3 1

YYGY0501004

4 6

YYGY0501005

5 3

6 1

GB/T6177.1-M10

7 1

YYGY0501007

8 1

YYGY0501008

9 1

GB/T6187.1-M12

10 1

11 1

GB/T276-6201

12 1

YYGY0501010

13 1

YYGY0501011

14 1

YYGY0501012

15 1

16 1

Chinese Name

主动轮风叶

主动轮衬套φ15×φ24×51.5

主动轮盘
变速滚针
缓冲橡胶
变速盘
法兰螺母M10
从动轮
从动轮盖
法兰锁紧螺母M12
驱动轴
深沟球轴承6201
中间齿轮(付轴组)
最终轴
最终齿轮
皮带

Collar, Primary Driving System, φ15×φ24×51.5

Primary Driving System

Roll Rod, Speed Shift, Primary Driving System

Cushion Rubber

Nut, M10
Subordinate Driven System

Nut, M12

Bearing, 6201
Center Gear
Final Shaft
Final Gear

Description

第 10 页

YYGY0501101

JONWAY 50CC ENGINE

图 11

Spring, Kick Return

YYGY0501105

Starter Idle Gear

YYGY0501111

Draft 11

起动系统

STARTER IDLE SHAFT COMP

YYGY0501100

NO. QTY

1

YYGY0501102

2

YYGY0501103

3

YYGY0501104

4

YYGY0501104

5

6

YYGY0501106

7

YYGY0501109

8

YYGY0501110

9

GB/T894.1-φ11.9

10
11
12

GB/T95-φ14
GB/T5787-M6×22

13

YYGY0501113

14

Part NO. Chinese Name

单向器
电起动齿轮从动齿轮
脚起动从动齿轮 主动轮三叉爪
起动爪
垫片φ10
惰性齿轮
起动摩擦弹簧
衬套φ13.5×φ18×21
起动轴
卡簧φ11.9
起动回归弹簧
垫片φ14
法兰螺栓M6×22
起动杆

电起动齿轮
主动轮铁盘

Starter Idle Gear Assy
Washer, Starter Idle Gear

Friction Spring, Starter Idle Gear
Collar, φ13.5×φ18×21
Kick Start Spindle Assy

Washer, φ14

Flange Bolt, M6×22
Kick Start Pedal

Description

1

1

1

1

1

1

1

1

1

1

1

1

1

1

第 11 页

YYGY0501201

Oil Pump

图 12

JONWAY 50CC ENGINE

Draft 12 YYGY0501200

机油泵

OIL PUMP COMP

NO. Q

1 1

YYGY0501202

2 1

GB/T6177.1-M6

3 1

GB/T5787-M6×20

4 3

Part NO. Chinese Name Description

机油泵
机油泵从动齿轮
法兰螺母M6
法兰螺栓M6×20

Sprocket, Oil Pump
Nut, M6
Bolt, M6×20

TY

第 12 页

JONWAY 50CC ENGINE

图 13

Spring Washer, φ4

Draft 13

起动电机

STARTER MOTOR

YYGY0501300

NO. QTY

1

GB3452.1-φ20
YYGY0501301

2 1

YYGY0501302

3

GB/T93-φ4

4 1

GB/T818-M4×8 0

5

6 2

Part NO. Chinese Name

密封圈φ20
起动电机
起动电机正极线
弹簧垫圈φ4
十字盘头螺钉M4×8
法兰螺栓M6×22

Seal O-Ring, Oil Level Gauge, φ20

Start Motor
Positive Cable, Start Motor

Flange Bolt, M6×22GB/T5787-M6×22

Description

1

1

1

第 13 页

图 14

JONWAY 50CC ENGINE

GB/T5787-M6×15

Flange Bolt, M6×15

YYGY0501401

Generator Assy

Draft 14

磁电机

GENERATOR

YYGY0501400

NO. QTY

1 1

YYGY0501402

2 1

YYGY0501403

3 1

GB/T5781-M5×12

4 2

GB/T6177.1-M12

5 1

6 2

Part NO. Chinese Name Description

磁缸
线圈
触发器
六角头螺栓M5×12
法兰螺母M12

Magneto Coil, (Stator)
Trigger, (Flywheel)
Hex Bolt, M5×12
Flange Nut, M12

法兰螺栓M6×15

第 14 页