Yamaha YP250 98 User Manual

3
MAINTENANCE SPECIFICATIONS
SPEC
MAINTENANCE SPECIFICATIONS
ENGINE
Item
Standard Limit
V-belt:
V-belt width
23.0 mm 21.0 mm
Carburetor:
Type
I.D. mark
Ventuly outside diameter
Main jet (M.J)
Main air jet (M.A.J)
Jet needle (J.N)
Throttle valve size (Th.V)
Pilot air jet (P.A.J.1)
Needle jet (N.J)
Pilot outlet (P.O)
Pilot jet (P.J)
Bypass (B.P)
Pilot screw (P.S)
Valve seat size (V.S)
Starter jet 1 (G.S.1)
Starter jet 2 (G.S.2)
Float height (F.H)
Engine idle speed
Intake vacuum
Oil temperature
Cooling water temperature
Y28V-1B-1
4UC 00 [4UD 00 (CH, A)]
ø28
#130
ø0.9
5D32-3/5
11
ø1.2
#85
ø0.8
#44
0.7  3
1 1/2
1.4
ø0.5
ø1.3
27 mm
1,350  1,450 r/min
220  260 mmHg
65  75C
80C




















CHASSIS
Item
Standard Limit
Steering system:
Steering bearing type
Ball and angular bearing 
Front suspension:
Front fork travel
Fork spring free length
Spring rate (K1)
Stroke (K1)
Oil capacity
Oil level
Oil grade
Inner tube vend limit
100 mm
265.8 mm
5.7 N/mm (0.57 kg/mm)
0  100 mm
0.142 L (142 cm
3
)
80 mm
Fork oil 15 WT or equivalent


265 mm





0.2 mm

Yamaha YP250 98 Specifications

General

Displacement	249cc
Compression Ratio	10.5:1
Front Suspension	Telescopic fork
Rear Suspension	Unit Swing
Front Brake	Single Disc
Cooling System	Liquid
Transmission	Automatic
Fuel Capacity	12 L
Engine Type	Liquid-cooled, 4-stroke, SOHC, 4-valve