Yamaha Yfm 20s Service 2004 Service manual
Yamaha Yfm 20s Service · 2004 · service manual · 69 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 |
|---|---|---|---|
| Carburetor joint Bolt | 20 N·m | 2 kgf·m · 14 ft·lb | p. 14 |
| Carburetor clamp (cylinder head side) Screw | 3 N·m | 0.3 kgf·m · 2.2 ft·lb | p. 14 |
| Carburetor clamp (air filter case side) Screw | 3 N·m | 0.3 kgf·m · 2.2 ft·lb | p. 14 |
| Muffler and exhaust pipe Bolt | 16 N·m | 1.6 kgf·m · 11 ft·lb | p. 14 |
| Muffler Bolt | 34 N·m | 3.4 kgf·m · 24 ft·lb | p. 14 |
| Clutch cable holder Bolt | 16 N·m | 1.6 kgf·m · 11 ft·lb | p. 14 |
| Right crankcase cover Bolt | 10 N·m | 1 kgf·m · 7.2 ft·lb | p. 14 |
| Left crankcase cover Bolt | 11 N·m | 1.1 kgf·m · 8 ft·lb | p. 14 |
| Crankshaft end cover Bolt | 7 N·m | 0.7 kgf·m · 5.1 ft·lb | p. 14 |
| Bearing retainer (balancer shaft) Screw | 7 N·m | 0.7 kgf·m · 5.1 ft·lb | p. 14 |
| Bearing retainer (main axle) Screw | 7 N·m | 0.7 kgf·m · 5.1 ft·lb | p. 14 |
| Bearing retainer (left crankcase) Screw | 7 N·m | 0.7 kgf·m · 5.1 ft·lb | p. 14 |
| Drive sprocket Nut | 90 N·m | 9 kgf·m · 65 ft·lb | p. 14 |
| Stopper lever Bolt | 10 N·m | 1 kgf·m · 7.2 ft·lb | p. 14 |
| Reverse shift cam stopper bolt Bolt | 18 N·m | 1.8 kgf·m · 13 ft·lb | p. 14 |
| Drive select lever assembly Bolt | 20 N·m | 2 kgf·m · 14 ft·lb | p. 14 |
| Shift rod (shift pedal) locknut Nut | 8 N·m | 0.8 kgf·m · 5.8 ft·lb | p. 14 |
| Engine and frame | 73 N·m | 7.3 kgf·m · 53 ft·lb | p. 16 |
| Front shock absorber and frame | 48 N·m | 4.8 kgf·m · 35 ft·lb | p. 16 |
| Front shock absorber and lower arm | 48 N·m | 4.8 kgf·m · 35 ft·lb | p. 16 |
| Steering knuckle and front wheel hub | 70 N·m | 7 kgf·m · 50 ft·lb | p. 16 |
| Steering shaft and frame | 35 N·m | 3.5 kgf·m · 25 ft·lb | p. 16 |
| Tie-rod locknut | 15 N·m | 1.5 kgf·m · 11 ft·lb | p. 16 |
| Disc cover | 7 N·m | 0.7 kgf·m · 5.1 ft·lb | p. 16 |
| Front brake master cylinder | 7 N·m | 0.7 kgf·m · 5.1 ft·lb | p. 16 |
| Clutch and parking brake lever assembly | 4 N·m | 0.4 kgf·m · 2.9 ft·lb | p. 16 |
| Brake pipe joint and frame | 10 N·m | 1 kgf·m · 7.2 ft·lb | p. 16 |
| Brake caliper bleed screw | 6 N·m | 0.6 kgf·m · 4.3 ft·lb | p. 16 |
| Rear brake hose union bolt | 28 N·m | 2.8 kgf·m · 20 ft·lb | p. 16 |
| Parking brake adjusting bolt and locknut | 16 N·m | 1.6 kgf·m · 11 ft·lb | p. 16 |
| Rear brake master cylinder and frame | 23 N·m | 2.3 kgf·m · 17 ft·lb | p. 16 |
| Rear brake hose and swingarm | 7 N·m | 0.7 kgf·m · 5.1 ft·lb | p. 16 |
| Rear hub and rear brake caliper | 34 N·m | 3.4 kgf·m · 24 ft·lb | p. 16 |
| Rear axle ring nut | 160 N·m | 16 kgf·m · 115 ft·lb | p. 16 |
| Rear axle ring nut set bolt | 7 N·m | 0.7 kgf·m · 5.1 ft·lb | p. 16 |
| Rear hub and swingarm | 73 N·m | 7.3 kgf·m · 53 ft·lb | p. 16 |
| Rear shock absorber and frame | 80 N·m | 8 kgf·m · 58 ft·lb | p. 16 |
| Relay arm and swingarm | 73 N·m | 7.3 kgf·m · 53 ft·lb | p. 16 |
| Rear shock absorber and relay arm | 73 N·m | 7.3 kgf·m · 53 ft·lb | p. 16 |
| Connecting rod and relay arm | 73 N·m | 7.3 kgf·m · 53 ft·lb | p. 16 |
| Spring preload adjusting locknut | 42 N·m | 4.2 kgf·m · 30 ft·lb | p. 16 |
| Swingarm guard and swingarm | 16 N·m | 1.6 kgf·m · 11 ft·lb | p. 17 |
| Driven chain sprocket and boss | 55 N·m | 5.5 kgf·m · 40 ft·lb | p. 17 |
| Drive chain guard | 12 N·m | 1.2 kgf·m · 8.7 ft·lb | p. 17 |
| Footrest and frame | 73 N·m | 7.3 kgf·m · 53 ft·lb | p. 17 |
| Battery holder | 10 N·m | 1 kgf·m · 7.2 ft·lb | p. 17 |
| Front fender and front fender bracket | 7 N·m | 0.7 kgf·m · 5.1 ft·lb | p. 17 |
| Front fender bracket (center) and frame | 10 N·m | 1 kgf·m · 7.2 ft·lb | p. 17 |
| Headlight bracket and front fender bracket | 7 N·m | 0.7 kgf·m · 5.1 ft·lb | p. 17 |
| Engine skid plate and frame | 12 N·m | 1.2 kgf·m · 8.7 ft·lb | p. 17 |
| Fuel tank | 7 N·m | 0.7 kgf·m · 5.1 ft·lb | p. 17 |
| Fuel cock and fuel tank | 4 N·m | 0.4 kgf·m · 2.9 ft·lb | p. 17 |
| Rectifier/regulator | 7 N·m | 0.7 kgf·m · 5.1 ft·lb | p. 17 |
| Tail/brake | 12 N·m | 1.2 kgf·m · 8.7 ft·lb | p. 17 |
| Tail/brake light bracket and rear fender | 4 N·m | 0.4 kgf·m · 2.9 ft·lb | p. 17 |
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