Yamaha YFM25RY Automobile User Manual


 
GENERAL SPECIFICATIONS
2-2
Spark plug (s)
Manufacturer/model NGK/DR7EA
Spark plug gap 0.6–0.7 mm (0.024–0.028 in)
Clutch type Wet, multiple-disc
Transmission
Primary reduction system Spur gear
Primary reduction ratio 76/22 (3.455)
Secondary reduction system Chain drive
Secondary reduction ratio 38/14 (2.714)
Transmission type Constant mesh 5-speed
Operation Left foot operation
1st 37/13 (2.846)
2nd 33/18 (1.833)
3rd 29/21 (1.381)
4th 27/24 (1.125)
5th 28/29 (0.966)
Chassis
Frame type Steel tube frame
Caster angle 6 °
Camber angle -1.5 °
Kingpin angle 14.8 °
Trail 23.0 mm (0.91 in)
Tread rear (STD) 824.0 mm (32.44 in)
Tread front (STD) 826.0 mm (32.52 in)
Toe-in (with tire touching the ground) 9.0–19.0 mm (0.35–0.75 in)
Front tire
Type Tubeless
Size AT20 × 7-10
Manufacturer/model DUNLOP/KT201
Rear tire
Type Tubeless
Size AT19 × 10-9
Manufacturer/model DUNLOP/KT205A
Tire air pressure (measured on cold tires)
Maximum loading limit 100.0 kg (220 lb)
Off-road riding
Front 27.5 kPa (0.28 kgf/cm
2
, 4.0 psi)
Rear 27.5 kPa (0.28 kgf/cm
2
, 4.0 psi)
Front brake
Type Dual disc brake
Operation Right hand operation
Rear brake
Type Single disc brake
Operation Right foot operation
Front suspension
Type Double wishbone
Spring/shock absorber type Coil spring/oil damper (4D3D)
Coil spring/gas-oil damper (4D3H, 4D3M)
Wheel travel 190 mm (7.5 in)