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Do not spin the bearing with compressed air because this will damage the bearing surfaces. 1 глава
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1 Bearing
EAS00025
CIRCLIPS
Before reassembly, check all circlips carefully and replace damaged or distorted circlips. Always replace piston pin clips after one use. When installing a circlip 1, make sure the sharp-edged corner 2 is positioned opposite the thrust 3 that the circlip receives.
4 Shaft
1 - 20
CHECKING THE CONNECTIONS
EAS00026
GEN
INFO
CHECKING THE CONNECTIONS
Check the leads, couplers, and connectors for stains, rust, moisture, etc.
1. Disconnect:
• lead
• coupler
• connector
2. Check:
• lead
• coupler
• connector
Moisture → Dry with an air blower. Rust/stains → Connect and disconnect sev-eral times.
3. Check:
• all connections
Loose connection → Connect properly.
NOTE:
If the pin 1 on the terminal is flattened, bend it up.
4. Connect:
• lead
• coupler
• connector
NOTE:
Make sure all connections are tight.
5. Check:
• continuity
(with the pocket tester)
Pocket tester 90890-03112, YU-03112-C
NOTE:
• If there is no continuity, clean the terminals.
• When checking the wire harness, perform steps (1) to (3).
• As a quick remedy, use a contact revitalizer available at most part stores.
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SPECIAL TOOLS
EAS00027
SPECIAL TOOLS
GEN
INFO
The following special tools are necessary for complete and accurate tune-up and assembly. Use only the appropriate special tools as this will help prevent damage caused by the use of inappropri-ate tools or improvised techniques. Special tools, part numbers or both may differ depending on the country.
When placing an order, refer to the list provided below to avoid any mistakes.
NOTE:
• For U.S.A. and Canada, use part number starting with “YM-”, “YU-”, or “ACC-”.
• For others, use part number starting with “90890-”.
| Tool No. | Tool name/Function | Illustration |
| Rotor holding tool | ||
| 90890-01235 | ||
| YU-01235 | ||
| This tool is used to hold the clutch | ||
| assembly. | ||
| Ring nut wrench | ||
| 90890-01268 | ||
| YU-01268 | ||
| This tool is used to loosen or tighten the | ||
| steering ring nuts. | ||
| Piston pin puller set | ||
| 90890-01304 | ||
| YU-01304 | ||
| This tool is used to remove the piston | ||
| pins. | ||
| Radiator cap tester | Radiator cap tester | |
| 90890-01325 | Radiator cap tester adapter | |
| YU-24460-01 | ||
| Radiator cap tester | ||
| adapter | These tools are used to check the cooling | |
| 90890-01352 | ||
| YU-33984 | system. | |
| T-handle | T-handle | |
| Damper rod holder | ||
| 90890-01326 | ||
| YM-01326 | ||
| Damper rod holder | These tools are used to hold the damper | |
| 90890-01294 | rod when removing or installing the | |
| YM-01300 | ||
| damper rod. | ||
| Locknut wrench | ||
| 90890-01348 | ||
| YM-01348 | ||
| This tool is used to remove or install the | ||
| secondary sheave spring seat nut. | ||
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| SPECIAL TOOLS | GEN | |||||
| INFO | ||||||
| Tool No. | Tool name/Function | Illustration | ||||
| Flywheel puller | ||||||
| 90890-01362 | ||||||
| YU-33270-B | ||||||
| This tool is used to remove the A.C. mag- | ||||||
| neto rotor. | ||||||
| Fork seal driver weight | Fork seal driver weight | |||||
| 90890-01367 | Fork seal driver attachment (41 mm) | |||||
| YM-A5142-4 | ||||||
| Fork seal driver | These tools are used to install the oil | |||||
| attachment | ||||||
| seal, dust seal, and the outer tube bush- | ||||||
| 90890-01381 | ||||||
| YM-A5142-2 | ing of a front fork leg. | |||||
| Steering nut wrench | ||||||
| 90890-01403 | ||||||
| YU-33975 | ||||||
| This tool is used to loosen or tighten the | ||||||
| steering ring nuts. | ||||||
| Oil filter wrench | ||||||
| 90890-01469 | ||||||
| This tool is needed to loosen or tighten | ||||||
| the oil filter cartridge. | ||||||
| Sheave holder | ||||||
| 90890-01481 | This tool is used to hold the sheave | |||||
| assembly when removing or installing the | ||||||
| primary and secondary sheave. | ||||||
| Clutch spring compressor | ||||||
| 90890-01482 | ||||||
| This tool is used to remove or install the | ||||||
| nut. | ||||||
| Sheave holder | ||||||
| 90890-01701 | ||||||
| YS-01880-A | ||||||
| This tool is used to hold the A.C. magneto | ||||||
| rotor. | ||||||
| Micrometers (50 ~ 75 mm) | ||||||
| 90890-03008 | ||||||
| YU-03008 | ||||||
| This tool is used to measure the piston | ||||||
| skirt diameter. | ||||||
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| SPECIAL TOOLS | GEN | |||||
| INFO | ||||||
| Tool No. | Tool name/Function | Illustration | ||||
| Thickness gauge | ||||||
| 90890-03079 | ||||||
| YM-34483 | ||||||
| This tool is used to measure the valve | ||||||
| clearance. | ||||||
| Compression gauge | Compression gauge | |||||
| Extension | ||||||
| 90890-03081 | ||||||
| YU-33223 | ||||||
| Extension | These tools are used to measure engine | |||||
| 90890-04082 | ||||||
| compression. | ||||||
| Vacuum gauge | ||||||
| Vacuum gauge | ||||||
| 90890-03094 | ||||||
| YU-44456 | This gauge is used to synchronize the | |||||
| throttle bodies. | ||||||
| Pocket tester | ||||||
| 90890-03112 | ||||||
| YU-03112-C | ||||||
| This tool is used to check the electrical | ||||||
| system. | ||||||
| Timing light | ||||||
| 90890-03141 | ||||||
| YM-33277-B | ||||||
| This tool is used to check the ignition tim- | ||||||
| ing. | ||||||
| Test coupler adaptor | ||||||
| 90890-03149 | ||||||
| This tool is used to check the ABS diag- | ||||||
| nosis. | ||||||
| Pressure gauge | Pressure gauge | |||||
| Oil pressure adapter B | ||||||
| 90890-03153 | ||||||
| Oil pressure adapter | ||||||
| B | These tools are used to measure fuel | |||||
| 90890-03124 | ||||||
| pressure and oil pressure. | ||||||
| Carburetor angle driver | ||||||
| 90890-03158 | ||||||
| This tool is used to turn the air screw | ||||||
| when syncronizing the throttle bodies. | ||||||
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| SPECIAL TOOLS | GEN | |||||
| INFO | ||||||
| Tool No. | Tool name/Function | Illustration | ||||
| Digital circuit tester | ||||||
| 90890-03174 | ||||||
| This tool is used to check electrical sys- | ||||||
| tem. | ||||||
| Fuel pressure adapter | ||||||
| 90890-03181 | ||||||
| This tool is used to measure fuel pres- | ||||||
| sure. | ||||||
| Valve spring compres- | Valve spring compressor | |||||
| sor | Valve spring compressor attachment | |||||
| 90890-04019 | ||||||
| YM-04019 | ||||||
| Valve spring compres- | ||||||
| sor attachment | These tools are used to remove or install | |||||
| 90890-04114 | ||||||
| the valve assemblies. | ||||||
| YM-04114 | ||||||
| Middle driven shaft | Middle driven shaft bearing driver | |||||
| bearing driver | Mechanical seal installer | |||||
| 90890-04058 | ||||||
| YM-04058 | ||||||
| Mechanical seal | ||||||
| installer | These tools are used to install the water | |||||
| 90890-04078 | ||||||
| pump seal. | ||||||
| YM-33221-A | ||||||
| Damper rod holder (14 mm) | ||||||
| 90890-04085 | ||||||
| This tool is used to loosen or tighten the | ||||||
| front wheel axle. | ||||||
| Clutch holding tool | ||||||
| 90890-04086 | ||||||
| YM-91042 | This tool is needed to hold the clutch | |||||
| boss when removing or installing the | ||||||
| clutch boss nut. | ||||||
| Valve lapper | ||||||
| 90890-04101 | ||||||
| This tool is needed to remove and install | ||||||
| the valve lifters. | ||||||
| Valve guide remover (4 mm) | ||||||
| 90890-04111 | ||||||
| YM-04111 | ||||||
| This tool is used to remove or install the | ||||||
| valve guides. | ||||||
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