![Yamaha 25 NMHOS [118/245] Removing the cylinder head](/img/pdf.png)
Yamaha 25 NMHOS [118/245] Removing the cylinder head
![Yamaha 25 NMHOS [118/245] Removing the cylinder head](/views2/1821604/page118/bg76.png)
POWR
5-25
69R3J11
Power unit
Removing the cylinder head
1. Remove the spark plugs.
2. Remove the thermostat cover 1, then
remove the washer 2, thermostat 3 and
gasket 4.
3. Remove the cylinder head cover bolt 5,
holder 6 and thermoswitch 7 (W).
4. Remove the circlip 8 (W).
5. Remove the cylinder head cover bolts
and cylinder head bolts in the sequence
shown.
6. Remove the cylinder head cover 9, gas-
ket 0, cylinder head q and gasket w.
6S630020
1
4
2
3
69R50240
5
6
7
69R50230
8
69R5056A
69R50201
w
q
0
9
69R50190
9
69R3J11_05.qxd 06.7.6 1:32 PM Page 27
Содержание
- E 25b 25x e 30h 1
- English 1
- R 28197 3j 11 1
- Service manual 1
- Important information 2
- Notice 2
- Bracket unit 3
- Contents 3
- Electrical system 3
- Fuel system 3
- General information 3
- Lower unit 3
- Periodic check and adjustment 3
- Power unit 3
- Specification 3
- Troubleshooting 3
- 8 7 6 5 4 3 2 1 5
- Gen info 5
- General information 5
- Caution 6
- Disassembling the drive shaft 6
- Disassembling the forward gear 6
- Gen info 6
- How to use this manual 6
- Lower unit 6
- Manual format 6
- Removing the drive shaft 6
- 8 7 6 5 4 3 2 1 7
- Chk adj lowr trbl shtg 7
- Fuel brkt 7
- Gen info 7
- Spec powr elec 7
- Symbol 7
- Abbreviation 8
- Gen info 8
- 8 7 6 5 4 3 2 1 9
- Fire prevention 9
- Part lubricant and sealant 9
- Safety while working 9
- Self protection 9
- Ventilation 9
- Disassembly and assembly 10
- Gen info 10
- Good working practice 10
- 8 7 6 5 4 3 2 1 11
- Identification 11
- Serial number 11
- Digital caliper 90890 06704 12
- Gen info 12
- General information 12
- Needle bearing attachment 90890 06607 90890 06611 90890 06613 90890 06615 90890 06632 90890 06633 90890 06653 12
- Special service tool 12
- Vacuum pressure pump gauge set 90890 06756 12
- 8 7 6 5 4 3 2 1 13
- Gen info 14
- 8 7 6 5 4 3 2 1 15
- Gen info 16
- 8 7 6 5 4 3 2 1 17
- Checking the fuel system 18
- Gen info 18
- Predelivery check 18
- Propeller selection 18
- Propeller size 18
- Selection 18
- 8 7 6 5 4 3 2 1 19
- Checking the battery wh w wc 19
- Checking the gear oil 19
- Checking the outboard motor mounting height 19
- Checking the remote control cable w wc 19
- Checking the steering system 20
- Gen info 20
- 8 7 6 5 4 3 2 1 21
- Checking the engine start button engine start switch and engine stop lanyard switch 21
- Checking the gear shift and throttle operation 21
- Break in 22
- Checking the cooling water pilot hole 22
- Gen info 22
- Test run 22
- 8 7 6 5 4 3 2 1 23
- After test run 23
- 8 7 6 5 4 3 2 1 25
- Specification 25
- General specification 26
- 8 7 6 5 4 3 2 1 27
- 8 7 6 5 4 3 2 1 29
- 8 7 6 5 4 3 2 1 31
- 8 7 6 5 4 3 2 1 33
- Maintenance specification 34
- Power unit e25bmh 25xmh models 34
- 8 7 6 5 4 3 2 1 35
- Electrical e25bmh 25xmh models 36
- Lower unit e25bmh 25xmh models 36
- 8 7 6 5 4 3 2 1 37
- Power unit 25bmh 25bw 25bwc models 38
- 8 7 6 5 4 3 2 1 39
- Electrical 25bmh 25bw 25bwc models 40
- Lower unit 25bmh 25bw 25bwc models 40
- 8 7 6 5 4 3 2 1 41
- 8 7 6 5 4 3 2 1 43
- Power unit e30hmh 30hmh 30hwh models 43
- 8 7 6 5 4 3 2 1 45
- Electrical e30hmh 30hmh 30hwh models 45
- Lower unit e30hmh 30hmh 30hwh models 45
- 8 7 6 5 4 3 2 1 47
- Power unit 30hw 30hwc models 48
- 8 7 6 5 4 3 2 1 49
- Electrical 30hw 30hwc models 50
- Lower unit 30hw 30hwc models 50
- 8 7 6 5 4 3 2 1 51
- 8 7 6 5 4 3 2 1 53
- Dimension 53
- Exterior e25bmh 25xmh 25bmh 25bwc e30hmh 30hmh 30hwh 30hwc 53
- Maintenance specification 53
- Exterior 25bw 30hw 54
- Specification 54
- 8 7 6 5 4 3 2 1 55
- Clamp bracket 55
- Maintenance specification 55
- Specified torque 56
- Tightening torque 56
- 8 7 6 5 4 3 2 1 57
- General torque 57
- 8 7 6 5 4 3 2 1 59
- Chk adj 59
- Periodic check and adjustment 59
- Chk adj 60
- Maintenance interval chart 60
- 8 7 6 5 4 3 2 1 61
- Checking the fuel filter 61
- Checking the fuel joint and fuel hose fuel tank to carburetor 61
- Checking the top cowling 61
- Fuel system 61
- Top cowling 61
- Checking the spark plug 62
- Checking the thermostat 62
- Chk adj 62
- Power unit 62
- 8 7 6 5 4 3 2 1 63
- Adjusting the throttle cable wh wc mh 63
- Checking the cooling water passage 63
- Control system 63
- Adjusting the throttle cable w wc 64
- Chk adj 64
- 8 7 6 5 4 3 2 1 65
- Adjusting the throttle control lever link 66
- Checking the ignition timing 66
- Chk adj 66
- 8 7 6 5 4 3 2 1 67
- Adjusting the ignition timing 68
- Chk adj 68
- 8 7 6 5 4 3 2 1 69
- Checking the engine idle speed 69
- Checking the gear shift operation 70
- Chk adj 70
- 8 7 6 5 4 3 2 1 71
- Adjusting the start in gear protec tion 71
- Checking the choke solenoid opera tion w 71
- Checking the neutral switch opera tion wh wc 71
- Checking the start in gear protec tion 71
- Bracket 72
- Checking the tilt operation 72
- Chk adj 72
- 8 7 6 5 4 3 2 1 73
- Changing the gear oil 73
- Checking the gear oil level 73
- Checking the tilt pin 73
- Lower unit 73
- Checking the anode 74
- Checking the lower unit for air leak age 74
- Checking the propeller 74
- Chk adj 74
- General 74
- 8 7 6 5 4 3 2 1 75
- Checking the battery wh w wc 75
- Chk adj 76
- Lubricating the outboard motor 76
- 8 7 6 5 4 3 2 1 79
- Fuel system 79
- Fuel system 80
- Hose routing 80
- 8 7 6 5 4 3 2 1 81
- Fuel line 81
- Hose routing fuel line 81
- Fuel pump 82
- Fuel system 82
- 8 7 6 5 4 3 2 1 83
- Checking the fuel joint 83
- Checking the primer pump 83
- Checking the fuel pump 84
- Disassembling the fuel pump 84
- 8 7 6 5 4 3 2 1 85
- Assembling the fuel pump 85
- Carburetor 86
- Fuel system 86
- 8 7 6 5 4 3 2 1 87
- Carburetor 87
- Fuel system 88
- 8 7 6 5 4 3 2 1 89
- Checking the carburetor 89
- Checking the float height 89
- Disassembling the carburetor 89
- Assembling the carburetor 90
- 8 7 6 5 4 3 2 1 91
- Power unit 92
- 8 7 6 5 4 3 2 1 93
- Checking the compression pressure 94
- Power unit 94
- 8 7 6 5 4 3 2 1 95
- Power unit 95
- Power unit 96
- 8 7 6 5 4 3 2 1 97
- Checking the starter rope 97
- Disassembling the manual starter 97
- Assembling the manual starter 98
- Checking the drive pawl 98
- Checking the spiral spring 98
- Measuring the starter rope 98
- 8 7 6 5 4 3 2 1 99
- Power unit 100
- 8 7 6 5 4 3 2 1 101
- Power unit 101
- Power unit 102
- 8 7 6 5 4 3 2 1 103
- Power unit 103
- Power unit 104
- 8 7 6 5 4 3 2 1 105
- Power unit 105
- Power unit 106
- 8 7 6 5 4 3 2 1 107
- Removing the power unit 107
- 8 7 6 5 4 3 2 1 109
- Removing the flywheel magnet 109
- Removing the electrical component 110
- 8 7 6 5 4 3 2 1 111
- E25b 25b 111
- Intake manifold 111
- Power unit intake manifold 111
- E25b 25b 112
- Power unit 112
- 8 7 6 5 4 3 2 1 113
- Removing the reed valve assembly 113
- Checking the reed valve 114
- 8 7 6 5 4 3 2 1 115
- Cylinder head exhaust cover 115
- Intake manifold cylinder head exhaust cover 115
- Power unit 116
- 8 7 6 5 4 3 2 1 117
- Cyilnder head exhaust cover 117
- Removing the cylinder head 118
- 8 7 6 5 4 3 2 1 119
- Checking the cylinder head 119
- Checking the exhaust cover 119
- Removing the exhaust cover 119
- Crankcase 120
- Power unit 120
- 8 7 6 5 4 3 2 1 121
- Crankcase 121
- Power unit 122
- 8 7 6 5 4 3 2 1 123
- Checking the cylider block 123
- Disassembling the piston 123
- Removing the crankcase 123
- Removing the crankshaft assembly and oil seal housing 123
- Checking the cylinder bore 124
- Checking the piston diameter 124
- Checking the piston ring 124
- 8 7 6 5 4 3 2 1 125
- Checking the piston pin boss bore 125
- Checking the piston ring side clear ance 125
- Checking the piston pin 126
- Disassembling the crankshaft assembly 126
- 8 7 6 5 4 3 2 1 127
- Checking the crankpin 128
- 8 7 6 5 4 3 2 1 129
- Assembling the crankshaft assem bly 129
- 8 7 6 5 4 3 2 1 131
- 8 7 6 5 4 3 2 1 133
- Checking the crankshaft 134
- 8 7 6 5 4 3 2 1 135
- Assembling the oil seal housing 135
- Assembling the piston 135
- Checking the oil seal housing 135
- Disassembling the oil seal housing 135
- Assembling the power unit 136
- 8 7 6 5 4 3 2 1 137
- 8 7 6 5 4 3 2 1 139
- Installing the electrical component 139
- 8 7 6 5 4 3 2 1 141
- Installing the power unit 141
- 8 7 6 5 4 3 2 1 143
- 8 7 6 5 4 3 2 1 145
- Lower unit 145
- Lower unit 146
- 8 7 6 5 4 3 2 1 147
- Lower unit 147
- Lower unit 148
- 8 7 6 5 4 3 2 1 149
- Lower unit 149
- Removing the lower unit 150
- 8 7 6 5 4 3 2 1 151
- Removing the water pump and shift rod 151
- Assembling the oil seal housing 152
- Checking the water pump and shift rod 152
- Disassembling the oil seal housing 152
- 8 7 6 5 4 3 2 1 153
- Lower unit propeller shaft housing 153
- Propeller shaft housing 153
- Disassembling the propeller shaft assembly 154
- Disassembling the propeller shaft housing 154
- Removing the propeller shaft hous ing assembly 154
- 8 7 6 5 4 3 2 1 155
- Checking the propeller shaft 155
- Checking the propeller shaft hous ing 155
- Checking the reverse gear 155
- Assembling the propeller shaft housing 156
- 8 7 6 5 4 3 2 1 157
- Assembling the propeller shaft assembly 157
- Drive shaft and lower case 158
- Lower unit 158
- 8 7 6 5 4 3 2 1 159
- Disassembling the drive shaft 159
- Removing the drive shaft 159
- Checking the drive shaft 160
- Checking the pinion and forward gear 160
- Disassembling the forward gear 160
- Disassembling the lower case 160
- 8 7 6 5 4 3 2 1 161
- Assembling the drive shaft 161
- Assembling the forward gear 161
- Assembling the lower case 161
- Checking the lower case 161
- Installing the drive shaft 162
- 8 7 6 5 4 3 2 1 163
- Installing the propeller shaft hous ing 163
- Installing the shift rod 163
- Installing the water pump 164
- 8 7 6 5 4 3 2 1 165
- Installing the lower unit 165
- 8 7 6 5 4 3 2 1 167
- Shimming 168
- 8 7 6 5 4 3 2 1 169
- Selecting the pinion shim 169
- Shimming 169
- Selecting the forward gear shim 170
- 8 7 6 5 4 3 2 1 171
- Selecting the reverse gear shim 171
- Backlash 172
- Measuring the forward and reverse gear backlash 172
- 8 7 6 5 4 3 2 1 173
- 8 7 6 5 4 3 2 1 175
- Bracket unit 175
- Bracket unit 176
- Tiller handle 176
- 8 7 6 5 4 3 2 1 177
- Tiller handle 177
- Disassembling the tiller handle 178
- 8 7 6 5 4 3 2 1 179
- Assembling the tiller handle 179
- Checking the tiller handle 179
- 8 7 6 5 4 3 2 1 181
- Bottom cowling 181
- Tiller handle bottom cowling 181
- Bracket unit 182
- 8 7 6 5 4 3 2 1 183
- Bottom cowling shift actuator 183
- Shift actuator 183
- Bracket unit 184
- 8 7 6 5 4 3 2 1 185
- Disassembling the shift actuator 185
- Removing the shift actuator 185
- Assembling the shift actuator 186
- Checking the shift actuator 186
- 8 7 6 5 4 3 2 1 187
- Installing the shift actuator 187
- 8 7 6 5 4 3 2 1 189
- Shift actuator upper case 189
- Upper case 189
- Bracket unit 190
- 8 7 6 5 4 3 2 1 191
- Disassembling the upper case 191
- Removing the upper case 191
- Checking the upper case 192
- 8 7 6 5 4 3 2 1 193
- Assembling the upper case 193
- Installing the upper case 194
- 8 7 6 5 4 3 2 1 195
- Pivot shaft 195
- Upper case pivot shaft 195
- Checking the pivot shaft 196
- Installing the pivot shaft 196
- 8 7 6 5 4 3 2 1 197
- Clamp bracket swivel bracket 197
- Pivot shaft clamp bracket swivel bracket 197
- Wh w wc 197
- Bracket unit 198
- Wh w wc 198
- 8 7 6 5 4 3 2 1 199
- Clamp bracket swivel bracket 199
- Disassembling the bracket 200
- 8 7 6 5 4 3 2 1 201
- Assembling the swivel bracket 201
- Checking the bracket 201
- 8 7 6 5 4 3 2 1 203
- 8 7 6 5 4 3 2 1 205
- Electrical system 205
- Checking the electrical component 206
- Measuring the peak voltage 206
- 8 7 6 5 4 3 2 1 207
- Electrical component 207
- Starboard view 207
- 4 4 5 7 208
- Bw 30hw 208
- Electrical system 208
- 8 7 6 5 4 3 2 1 209
- E25bmh 25bmh 25xmh e30hmh 30hmh 209
- Electrical component 209
- Checking the ignition spark gap 210
- Checking the spark plug cap with resister type 210
- Ignition and ignition control sys tem 210
- 8 7 6 5 4 3 2 1 211
- Checking the ignition coil 211
- Checking the spark plug cap 211
- Checking the cdi unit 212
- 8 7 6 5 4 3 2 1 213
- E 25b e 30h 213
- Ignition and ignition control system 213
- Checking the charge coil 214
- Checking the pulser coil 214
- 8 7 6 5 4 3 2 1 215
- Checking the thermoswitch w 215
- Checking the engine start button wh wc 216
- Checking the engine start switch w 216
- Checking the fuse wh w wc 216
- Starting system 216
- 8 7 6 5 4 3 2 1 217
- Checking the engine stop button wc 217
- Checking the engine stop lanyard switch 217
- Checking the choke solenoid conti nuity w 218
- Checking the neutral switch continu ity wh wc 218
- Checking the starter relay wh w wc 218
- 8 7 6 5 4 3 2 1 219
- Starter motor wh w wc 219
- Starting system starter motor wh w wc 219
- Electrical system 220
- 8 7 6 5 4 3 2 1 221
- Checking the armature 221
- Checking the starter motor pinion 221
- Removing the starter motor pinion 221
- Checking the brush 222
- Checking the starter motor opera tion 222
- 8 7 6 5 4 3 2 1 223
- Charging system 223
- Checking the lighting coil 223
- Checking the rectifier wh w wc 223
- Troubleshooting 225
- Trbl shtg 226
- Troubleshooting the power unit 226
- 8 7 6 5 4 3 2 1 227
- Trbl shtg 228
- 8 7 6 5 4 3 2 1 229
- Trbl shtg 230
- 8 7 6 5 4 3 2 1 231
- Troubleshooting the lower unit 231
- 8 7 6 5 4 3 2 1 233
- B black br brown g green l blue r red w white b o black orange b w black white g w green white w b white black w r white red 237
- Color code 237
- Spark plug 2 ignition coil 3 cdi unit 4 charge coil 5 pulser coil 6 lighting coil 7 engine stop lanyard switch 8 rectifier regulator 25bmh 30hmh option 9 2p connector 25bmh 30hmh option 237
- Wd30hwh 06 20 38 page 3 237
- Wiring diagram e 25bmh 25xmh e 30hmh 237
- Color code 238
- E 25b 25x e 30h 239
- R 28197 3j 11 239
- Service manual 239
- Rcwd02 240
- Wiring diagram 30hwh 240
- Bw 30hw 241
- Color code 241
- Bw 30hw 242
- Rcwd03 242
- Wiring diagram 25bw 30hw 242
- Bwc 30hwc 243
- Color code 243
- Bwc 30hwc 244
- Rcwd05 244
- Wiring diagram 25bwc 30hwc 244
Похожие устройства
- Haier AS112BMBKA Инструкция по эксплуатации
- Haier AU072ACBHA Инструкция по эксплуатации
- Haier AU102ACBHA Инструкция по эксплуатации
- Haier AU182BFBHA Инструкция по эксплуатации
- Haier HSU-07H03/R1(B) Инструкция по эксплуатации
- Haier HSU-10HB03/R1(B) Инструкция по эксплуатации
- Haier HSU-10HE03/R1(B) Инструкция по эксплуатации
- Haier HSU-10HW03/R1(B) Инструкция по эксплуатации
- Haier H2SM-18HA03/R1(B) Инструкция по эксплуатации
- Haier H2SM-18HE03/R1(B) Инструкция по эксплуатации
- Haier H2SM-18HW03/R1(B) Инструкция по эксплуатации
- Haier AB092FCBIA Инструкция по эксплуатации
- Haier AB092FCBIA Сервис мануал
- Haier AB142FCBIA Инструкция по эксплуатации
- Haier AB142FCBIA Сервис мануал
- Haier AB182FCBIA Инструкция по эксплуатации
- Haier AB182FCBIA Сервис мануал
- Haier AE072FCBKA Сервис мануал
- Haier AE092FCBKA Сервис мануал
- Haier AE122FCBKA Сервис мануал
Скачать
Случайные обсуждения