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EBU25961
SPECIFICATIONS
Dimensions:Overall length:1625 mm (64.0 in)
Overall width: 1072 mm (42.2 in)
Overall height:
1040 mm (40.9 in)
Seat height: 730 mm (28.7 in)
Wheelbase: 1110 mm (43.7 in)
Ground clearance:
100 mm (3.9 in)
Minimum turning radius: 2900 mm (114 in)Weight:With oil and fuel:
150.0 kg (331 lb)Noise and vibration level:Noise level (77/311/EEC):YFM25RB 81.0 dB(A)@3500 r/min
A-weighted sound power level:
YFM25RB 93.0 dB(A)@3500 r/min
Vibration on seat (EN1032, ISO5008): YFM25RB Will not exceed 0.5 m/s ²
Vibration on handlebar (EN1032, ISO5008): YFM25RB Will not exceed 2.5 m/s ²
Engine:Engine type:
Air cooled 4-stroke, SOHC
Cylinder arrangement: Forward-inclined single cylinder
Displacement:
249 cm ³
Bore × stroke:
74.0 × 58.0 mm (2.91 × 2.28 in)
Compression ratio: 9.50 : 1
Starting system:
Electric starter
Lubrication system: Wet sumpEngine oil:Recommended brand:
YAMALUBE
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Type:SAE 5W-30, 10W-30, 10W-40, 15W-40, 20W-40 or 20W-
50
Recommended engine oil grade: API service SG type or higher, JASO standard MA
Engine oil quantity: Without oil filter element replacement:
1.25 L (1.32 US qt, 1.10 Imp.qt)
With oil filter element replacement: 1.35 L (1.43 US qt, 1.19 Imp.qt)Air filter:Air filter element:
Wet elementFuel:Recommended fuel:YFM250RB Unleaded gasoline only
YFM25RB Regular unleaded gasoline only Fuel tank capacity:
9.0 L (2.38 US gal, 1.98 Imp.gal)
Fuel reserve amount: 1.0 L (0.26 US gal, 0.22 Imp.gal)
Carburetor:Type × quantity:
BSR29 x 1Spark plug (s):Manufacturer/model:
NGK/DR7EA
Spark plug gap: 0.6 –0.7 mm (0.024 –0.028 in)Clutch:Clutch type:
Wet, multiple-disc
Operation: Left hand operationTransmission: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
0 10 30 50 70 90 110 130 ˚F
–20 –10 0 10 20 30 40 50 ˚CSAE 5W-30
SAE 10W-30
SAE 10W-40
SAE 15W-40
SAE 20W-40SAE 20W-50
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