Page 1
Draft 1
YYSLL2500100
250cc WATER COOLING ENGI NE PARTS CATALOGUE
VENTILATION SYSTEM
250CC WATER COOLING ENGINE
图 1
NO. QTY
YYSLL2500001
1 1
YYSLL2500002
2 1
YYSLL2500003
3 1
YYSLL2500004
4 1
YYSLL2500005
5 1
YYSLL2500006
6 2
YYSLL2500007
7 2
8 4
高压油管
Part NO.
高压油管
高压油管支架
橡胶A
橡胶B
油管螺栓（非标）M12X28
油管螺栓（非标）M8X25
铜垫 φ8
铜垫 φ12
Model
DescriptionChinese Nam e
High Pressure Fuel Tube
Bracket
Rubber A
Rubber B
Bolt,Fuel Tube M12×28
Bolt,Fuel Tube M8×25
Gasket φ8
Gasket φ12YYSLL2500008
第 1 页
Page 2
Model
图 2
250CC WATER COOLING ENGINE
Draft 2
气缸头盖
YYSLL2500200CYLINDER HEAD COVER COMP
NO. QTY
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
Part NO.
YYSLL2500201
YYSLL2500202
YYSLL2500203
YYSLL2500204
YYSLL2500205
YYSLL2500206
GB/T5789-M6×50
YYSLL2500207
GB/T5789-M6×25
YYSLL2500208
YYSLL2500209
YYSLL2500210
GB/T5789-M6×12
气缸头盖
通气管接头
通气管三叉接头
通气管
通气管卡簧
通气管夹
法兰螺栓M6×50
空滤器支架
法兰螺栓M6×25
定位销 φ10Xφ8X16
观察孔塞
O型圈
法兰螺栓M6×12
GB/95-φ6 平垫 φ6
GB/T818-M5X15
YYSLL2500211
YYSLL2500212
YYSLL2500213
YYSLL2500214
YYSLL2500215
YYSLL2500216
十字螺钉M5X18
进气门摇臂轴
排气门摇臂轴
进、排气摇臂轴O型圈
气门摇臂
通气压板
气缸头盖密封圈
Chinese Nam e
Cover, Cylinder Hea d
Joint, Breather Tube
Trifurcate Joint,Breather Tube
Breather Tube
Circlip, Breather Tube
Clip,Breather Tube
Flange Bolt M6×50
Bracket,Air Cleaner
Flange Bolt M6×25
Pin Dowel φ10×φ8×16
Plug
O Ring
Flange Bolt M6×12
Gasket φ6
Cross Screw M5×18
Rocker Arm,Air Intake
Rocker Arm,Air Outlet
O Ring
Rocker Arm
Breather Plate
Gasket, C ylinder Head Cover
Description
1
1
3
6
1
4
1
1
2
1
1
3
2
1
1
1
2
2
1
1
第 2 页
Page 3
Model
Flange Bolt, M6×22
GB/T5789-M6×16
YYSLL2500321
GB/T5789-M6×22
YYSLL2500320
YYSLL2500321
YYSLL2500324
YYSLL2500322
YYSLL2500314
YYSLL2500313
YYSLL2500318
YYSLL2500315
GB/T5789-M6×22
Bolt, Ex. Valve Stud M8×
YYSLL2500309
Intake Pipe
Inner Hex Bolt M6×16
O Ring
YYSLL2500319
Spring, Valve Outer
Inner Hex Bolt
Camshaft
Spark Plug DTRTC
Pin, Dowel φ10×φ8×16
Paper Gasket, Cylinder
Flange Bolt, M6×16
O Ring
Cotter, Valve
Spring, Valve Inner
Retainer, Valve Spring
Camshaft Fixing Plate
Flange Bolt M6×22
Clip,Intake Pipe
Bolt M8
YYSLL2500323
YYSLL2500312
Description
Cylinder H ead
Valve, I n.
YYSLL2500307
Part NO.
YYSLL2500303
YYSLL2500305
Valve, Ex.
YYSLL2500302
Oil Seal, Valve Stem
Washer, Valve Spring
YYSLL2500316
Gasket φ8
图 3 气缸头
250CC WATER COOLING ENGINE
YYSLL2500311
YYSLL2500301
Chinese Nam e
YYSLL2500317
YYSLL2500306
YYSLL2500304
YYSLL2500310
YYSLL2500308
Draft 3 CYLINDER HEAD COMP
YYSLL2500300
NO. QTY
1
2
3
4
5
6
7
8
9
10
11
12 1
13
14
15
16
17
18
19
20
21
22
23
24 1
25 1
26 1
27 3
28
29
30
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）
内六角螺堵
排气口双头螺柱M8×
火花塞 DTRTC
定位销φ10×φ8×16
凸轮轴
凸轮轴压块
法兰螺栓M6×22
盖型螺母M8
铜垫φ8
进气管卡箍
进气管
内六角螺栓M6X16
O型圈
节温器
温度传感器
节温器上盖
节温器下盖
法兰螺栓M6×16
节温器O型圈
法兰螺栓M6×22
气缸头钢垫片
1
1
1
2
2
2
2
2
2
1
2
2
1
1
2
4
4
1
1
2
1
1
1
2
1
第 3 页
Page 4
Model
250CC WATER COOLING ENGINE
气缸体图 4
Draft 4 CYLINDER COMP
YYSLL2500400
NO. QTY
1
2
3
4
5
6
7
8
9
Part NO.
YYSLL2500401
YYSLL2500402
GB/T5789-M6×22
YYSLL2500403 Tube
YYSLL2500404
YYSLL2500405
YYSLL2500406
YYSLL2500407
YYSLL2500408
定位销φ10×φ8×16
气缸体
法兰螺栓M6×22
水管
护管弹簧
卡箍
链条导杆
调链器
调链器纸垫
Chinese Nam e
Pin, Dowel φ10×φ8×16
Cylinder
Flange Bolt, M6×22
Spring
Clip
Chain Stem
Chain Adjusting
Gasket,Chain Adjusting
Description
2
1
2
1
1
2
1
1
1
第 4 页
Page 5
Model
图 5
250CC WATER COOLING ENGINE
Draft 5
右盖
RIGHT COVER COMP
YYSLL2500500
NO. QTY
1 1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
23
24
25
26
20
21
22
27
28
29
30
31
Part NO.
YYSLL2500501
GB3452.1-φ19
YYSLL2500502
YYSLL2500503
YYSLL2500504
YYSLL2500505
YYSLL2500506
YYSLL2500508
YYSLL2500509
YYSLL2500510
GB/T5789-M12×15
YYSLL2500511
GB/T5789-M6×70
GB/T5789-M6×40 Flange Bolt M6×40
GB/T5789-M6×25
GB/T5789-M6×80
YYSLL2500512
YYSLL2500513
YYSLL2500514
YYSLL2500517
YYSLL2500518
YYSLL2500519
YYSLL2500520
右盖
机油尺密封圈φ19
机油尺
滤网
滤网弹簧
滤网盖O型圈
滤网盖
右盖纸垫
观察孔塞
O型圈
法兰螺栓M12×15
铝垫片
法兰螺栓M6×70
法兰螺栓M6×40
法兰螺栓M6×25
法兰螺栓M6×80
定位销φ8×φ6×14
水泵纸垫
水泵叶轮
水泵轴
水泵轴卡簧
水泵轴承
油封
垫片φ6
YYSLL2500515
YYSLL2500516
YYSLL2500521
YYSLL2500522 Spring Seat
YYSLL2500523
YYSLL2500524
YYSLL2500527
防水胶垫
密封圈
叶轮盖
弹簧座
弹簧
橡胶
防水座
Chinese Nam e
Description
Cover, R. Crankcase
Seal O-Ring, Oil Level Gauge, φ19
Oil Level Gauge
Oil Filter Screen
Spring, Oil Filter Screen
O Ring,Oil Filter
Oil Filter Cap
Paper Gasket, R.Crankcase Cover
Plug
O Ring
Flange Bolt M12×15
Gasket
Flange Bolt M6×70
Flange Bolt M6×25
Flange Bolt M6×80
Pin, Dowel φ8×φ6×14
Paper Gasket,Pump
Impeller,Pump
Pump Shaft
Clip,Pump Shaft
Bearing,Pump
Oil Seal
Gasket φ6
Waterproof Gasket
Seal Ring
Impeller C over
Spring
Rubber
Waterproof S ea t
1
1
1
1
1
1
1
1
1
1
1
3
5
3
1
2
1
1
1
2
2
1
1
1
1
1
2
1
1
1
第 5 页
Page 6
Model
图 6
250CC WATER COOLING ENGINE
Draft 6
右箱体
YYSLL2500600RIGHT CRANKCASE COMP
NO. QTY
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Part NO.
YYSLL2500601
YYSLL2500602
YYSLL2500603 Cushion Collar, Engine Mount (Inner)
YYSLL2500604
YYSLL2500605
YYSLL2500606
YYSLL2500607
YYSLL2500608
右箱体
定位销φ10×φ8×14
吊架缓冲套（内）
吊架缓冲套（外）
O型圈
双头螺柱M8X177
高压油管
密封圈
六角螺栓M6×12
YYSLL2500609
YYSLL2500610
YYSLL2500611
曲轴箱纸垫
凸轮轴链条
拉力杆
六角螺栓M6×12
垫片φ6
YYSLL2500612
双头螺柱M8X185
Chinese Nam e
Description
Right Crankcase Assy
Pin, Dowel φ10×φ8×14
Cushion Collar, Engine Mount (Outer)
O Ring
Bolt, M8×177
High Pressure Fuel Tube
Seal Ring
Hex Bolt M6×12
Paper Gasket, Crankcase
Timing Chain,Cam
Tension Stem, Cam Timing Chain
Hex Bolt M6×12
Gasket φ6
Bolt M8×185
1
2
1
1
2
2
1
2
1
1
1
1
1
1
1
第 6 页
Page 7
Model
Draft 7
250CC WATER COOLING ENGINE
左箱体图 7
LEFT CRANKCASE COMP
YYSLL2500700
NO. QTY
1 1
2 1
3 2
4 1
5 1
6 1
7 1
8 2
9 1
10 1
11 2
12
13
14 1
15 1
16 1
17
18
19
20 1
21
22
23 3
24 2
25 1
26 1
27 1
28 1
29 1
30 1
Part NO.
YYSLL2500701
GB/T276-6205
左曲轴箱体
深沟球轴承6205
滚针轴承NK 14/16
GB/T276-6301
YYSLL2500702
YYSLL2500703
YYSLL2500704
深沟球轴承6301
后减震固定轴
吊架外衬套
吊架内衬套
O型圈
YYSLL2500706
GB/T6187.1-M8
YYSLL2500707
YYSLL2500708
GB/T276-6304
GB/T276-62/22
GB/T95-φ10
GB/T5789-M10×12 Flange Bolt M10×12
YYSLL2500709
YYSLL2500710
GB9877-20×32×6
YYSLL2500711
GB/T5789-M6×70
GB/T5789-M6×60
GB/T5789-M8×38
GB/T5789-M8×28
GB9877-28×40×8
GB/T5789-M6×30
GB/T95-φ10
GB/T5789-M6×125
YYSLL2500712 Asbestus
刹车蹄块固定销
法兰锁紧螺母M8
缸体双头螺柱M8X177
齿轮室盖
深沟球轴承6304
深沟球轴承62/22
铜垫圈φ10
齿轮室进油法兰螺栓M10×12
定位销φ10×φ8×16
齿轮室纸垫
齿轮室盖油封22×35×100
通气管
法兰螺栓M6×70
法兰螺栓M6×60
法兰螺栓M8×38
法兰螺栓M8×28
左曲轴箱体油封28×40×8
齿轮室放油法兰螺栓M6×30
铜垫圈φ6
法兰螺栓M6×125
石棉
GB/T5789-M6×16
Chinese Nam e
Left Crankcase
Bearing,6205
Bearing NK 14/16
Bearing 6301
Fixing Shaft,Rear Absorber
Outer Bush,Engine Mount
Inner Bush,Engine Mount
O RingYYSLL2500705
Fixing Pin, Brake Shoe
Flange Lock Nut, M8
Bolt, M8X177
Gear Box Cover
Bearing, 6304
Bearing, 62/22
Gasket φ10
Pin, Dowel φ10×φ8×16
Paper Ga sket, Gear Box
Oil Seal, Gear Box Cap, 22×35×100
Breather Tube
Flange Bolt, M6×70
Flange Bolt, M6×60
Flange Bolt,M8×38
Flange Bolt, M8×28
Oil Seal, L. Crankcase, 28×40×8
Flange Bolt M6×30
Gasket φ6
Flange Bolt M6×125
Description
1
1
2
1
1
3
5
第 7 页
Page 8
Model
250CC WATER COOLING ENGINE
图 8 左盖
Draft 8 YYSLL2500800
LEFT CRANKCASE COVER
NO. QTY
1 1
2 3
3 2
4 1
5 1
6 1
7 2
8 4
9
10
Part NO. Chinese Nam e
YYSLL2500801
GB/818 M5X8
YYSLL2500802
GB/T5789-M6×16
侧盖
十字螺钉M5X8
六角螺栓M6X108
法兰螺栓M6×16
刹车导线夹
YYSLL2500804 Rubber Gasket,Left Crankcase Cover
YYSLL2500805
GB/818 M5X8
YYSLL2500806
YYSLL2500807
左箱盖橡胶垫
定位销φ10×φ8×16
十字螺钉M5X8
通气导流板
石棉
Left Crankcase Cover
Cross Screw M5×8
Hex Bolt M6×108
Flange Bolt M6×16
Clip, Brake Hose/CableYYSLL2500803
Pin ,Dowel φ10×φ8×16
Cross Screw M5×8
Guide Plate for Brea ther
Asbestus
Description
1
1
第 8 页
Page 9
Model
250CC WATER COOLING ENGINE
图 9
Draft 9
活塞连杆曲轴
PISTON, CONNECTING ROD AND CRANKSHAFT COMP
YYSLL2500900
NO. QTY
1 1
2 1
3 1
4 1
5 1
6 2
7 1
8 2
10 1
11 1
Part NO.
YYSLL2500901
YYSLL2500902
YYSLL2500903
YYSLL2500904
YYSLL2500905
YYSLL2500906
YYSLL2500907
YYSLL2500908
YYSLL2500910
YYSLL2500911
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
机油泵塞柱
机油泵塞柱弹簧
Chinese Nam e
Crankshaft & Connecting Rod Comp
Steel Ring (1st Ring), Piston
Carbon Ring (2st Ring), Piston
Oil Ring Set, Piston
Piston
Circlip, Piston Pin
Pin, Piston
Semi-circle Key
Plug,Oil Pump
Spring
Description
第 9 页
Page 10
Model
250CC WATER COOLING ENGINE
图 10
CVT
Draft 10
CVT
YYSLL2501000
NO. QTY
1 1
2 1
3 1
4 3
5 3
6 2
7 1
8 1
9 6
10 3
11 1
12 2
13 1
14 1
15 1
16 1
17 1
18 1
19 1
20 1
21 1
22 1
23 1
25 1
26 1
Part NO. Chinese Nam e Description
YYSLL2501001
YYSLL2501002
YYSLL2501003
GB/T818 M4X10
YYSLL2501004
YYSLL2501005
YYSLL2501006
YYSLL2501007
YYSLL2501008
YYSLL2501009
YYSLL2501010
主动轮风叶
主动轮衬套 φ27×φ17×62
主动轮盖
十字螺钉 M4X10
平垫片
油封
主动轮盘O型圈
主动轮盘
变速滚针
缓冲橡胶
变速盘
GB/T95-φ14
GB/T6177.1-M14
GB/T6187.1-M12 Nut, M12
YYSLL2501011
YYSLL2501012
YYSLL2501013
YYSLL2501014 Center Gear
YYSLL2501015
YYSLL2501016
YYSLL2501017
YYSLL2501018
YYSLL2501019
YYSLL2501021
YYSLL2501022
螺母M14
法兰锁紧螺母M12
从动轮
从动轮盖
驱动轴
中间齿轮
中间齿轮垫片φ14Xφ27
中间齿轮垫片φ20Xφ32
过桥齿轮
最终轴
最终齿轮
油封34X52X5
皮带
Impeller, Primary Driving System
Collar, Primary Driving System, φ27×φ17×62
Cover, Primary Driving Sys tem
Cross Screw M4×10
Washer
Oil Seal
O Ring
Prima ry Driving System
Roll Rod, Speed Shift, Primary Driving System
Cushion Rubber
Speed Shift Tray
Washer, φ14垫圈φ14
Nut, M14
Subordinate Driven System
Subordinate Driven Cover
Driven Mainshaft
Washer φ14Xφ27
Washer φ20Xφ32
Gear
Final Shaft
Final Gear
Oil Seal 34×52×5
Belt, CVT
第 10 页
Page 11
Model
250CC WATER COOLING ENGINE
图 11 机油泵
Draft 11
OIL PUMP COMP
YYSLL2501100
NO. QTY
1 1
8 1
2 1
3 2
4 1
5 1
6 1
7 1
9 1
Part NO. Chinese Nam e
YYSLL2501101
YYSLL2501107
YYSLL2501102
GB/T5789-M6×28
YYSLL2501103
YYSLL2501104
YYSLL2501105
YYSLL2501106
GB/T5789-M6×12
机油泵
机油泵轴
机油泵A罩
法兰螺栓M6×28
机油泵链轮
机油泵链条
链轮卡簧
机油泵B罩
螺栓M6×12
Oil Pump
Oil Pump Shaft
A Cover,Oi l Pump
Flange Bolt, M6×28
Sprocket, Oil Pump
Chain, Oil Pump
Circlip
B Cover, Oi l Pump
Bolt, M6×12
Description
第 11 页
Page 12
Model
250CC WATER COOLING ENGINE
Draft 12
起动电机图 12
YYSLL2501200STARTER MOTOR
NO. QTY
YYSLL2501201
1 1
YYSLL2501202
2 1
YYSLL2501203
3 1
YYSLL2501204
4 1
YYSLL2501205
5 1
YYSLL2501206
6 1
GB/T5789-M6×16
7 1
GB/T5789-M6×22
8 2
YYSLL2501207
9 1Start Motor
减速齿轮轴
减速齿轮
超越离合器总成
超越离合器齿轮
超越离合器盖
超越离合器压块
法兰螺栓M6×16
法兰螺栓M6×22
启动马达
Chinese Nam ePart NO.
Electric Start Gear Shaft
Electric Start Gear
Start Clutch Subassembly
Start Clutch Gear
Start Clutch Cover
Start Clutch Plate
Flange Bolt, M6×16
Flange Bolt, M6×22
Description
第 12 页
Page 13
Model
图 13
250CC WATER COOLING ENGINE
Draft 13
磁电机
GENERATOR
YYSLL2501300
NO. QTY
1 1
2 1
3 1
4 3
5 1
6 3
7 1
8 1
9 2
10 1
Part NO. Chinese Nam e
YYSLL2501301
YYSLL2501302
YYSLL2501303
磁缸
线圈
触发器
内六角头螺栓M8×18
GB/T6187.1-M16
GB/T5789-M6×30
法兰锁紧螺母M16
法兰螺栓M6×30
GB/95-φ16 平垫片φ16
YYSLL2501304
GB/T5789-M6×30
YYSLL2501305
触发器压块
法兰螺栓M5×16
圆柱销Φ2x14
Generator A ssy
Magneto Coil, (Stator)
Trigger, (Flywheel)
Inner Hex Bolt M8×18
Flange Lock Nut, M16
Flange Bolt, M6×30
Washer φ16
Fixing Plate,Trigger
Flange Bolt, M5×16
Pin Φ2x14
Description
第 13 页
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