Yamaha BR250 Service manual
Yamaha BR250 · service manual · 191 pages
Technical data
Numbers below were extracted automatically from the document. Verify them against the original manual before you order parts or apply torque.
Tightening torque
Values extracted from the document text. Check against the original before service work.
| Item | Value | Also | PDF page |
|---|---|---|---|
| Recheck maximum and minimum pump | 6.6 N·m | 4.8 ft·lb | p. 16 |
| Fou r crankcase bolts | 14.7 N·m | 10.8 ft·lb | p. 23 |
| Engine mounts | 29.4 N·m | 3 kgf·m | p. 30 |
| Pin | 13.7 N·m | 1.4 kgf·m | p. 65 |
| Securing bolts | 9.5 N·m | 7 ft·lb | p. 68 |
| Oil pump gear case M6 P | 6.9 N·m | 5.1 ft·lb | p. 83 |
| Drive and track suspension | 98.1 N·m | 72.5 ft·lb | p. 83 |
| Drive and track suspension | 58.8 N·m | 43.5 ft·lb | p. 83 |
| Chain hosing cap M6 P | 6.4 N·m | 5 ft·lb | p. 83 |
| Chain tensioner lock nut M10 P | 32.4 N·m | 24 ft·lb | p. 83 |
| Rear guide wheel M8 P | 22.6 N·m | 16.5 ft·lb | p. 83 |
| Steering column and gate M8 P | 19.6 N·m | 14.5 ft·lb | p. 83 |
| Cylinder Bolt | 29.4 N·m | 22 ft·lb | p. 89 |
| Suspension Wheel | 68.6 N·m | 7 kgf·m | p. 98 |
| Axle Nut | 78.5 N·m | 58 ft·lb | p. 99 |
| Spark plug M14 x P | 28 N·m | 2.8 kgf·m · 20 ft·lb | p. 146 |
| Cylinder head (bolt) M8 x P | 20 N·m | 2 kgf·m · 14 ft·lb | p. 146 |
| Cylinder head (nut) M10 x P | 25 N·m | 2.5 kgf·m · 18 ft·lb | p. 146 |
| Flywheel magneto M16 x P | 73 N·m | 7.3 kgf·m · 53 ft·lb | p. 146 |
| Drive and track suspension | 15 N·m | 1.5 kgf·m · 11 ft·lb | p. 146 |
| K suspension | 60 N·m | 6 kgf·m · 43 ft·lb | p. 146 |
| Bearing housing M8 x Pl | 23 N·m | 2.3 kgf·m · 17 ft·lb | p. 146 |
| Bearing | 85 N·m | 8.5 kgf·m · 61 ft·lb | p. 146 |
| Front pivot shaft M10 x P | 65 N·m | 6.5 kgf·m · 47 ft·lb | p. 146 |
| Rear pivot shaft M10 x P | 65 N·m | 6.5 kgf·m · 47 ft·lb | p. 146 |
| Guide wheel shaft | 80 N·m | 8 kgf·m · 58 ft·lb | p. 146 |
| Lower end bracket M8 x P | 20 N·m | 2 kgf·m · 14 ft·lb | p. 146 |
| Engine mounting bolt M10 x P | 52 N·m | 5.2 kgf·m · 37 ft·lb | p. 146 |
Spark plugs
Values extracted from the document text. Check against the original before service work.
| Item | Value | Also | PDF page |
|---|---|---|---|
| BR8HS | — | p. 74 | |
| M14 | — | p. 82 | |
| BD32-28 | — | p. 135 | |
| L05E | — | p. 144 | |
| BR9ES | — | p. 169 |
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