–4–
E
MAINTENANCE SPECIFICATIONS
SPEC
MAINTENANCE SPECIFICATIONS
ENGINE
Model
VMX12
Carburetor:
I.D. Mark
Main jet
(M.J.)
Main air jet
(M.A.J.)
Jet needle
(J.N.)
Needle jet
(N.J.)
Pilot jet
(P.J.)
Pilot air jet
(P.A.J.1)
Pilot screw
(P.S.)
Pilot outlet
(P.O.)
Bypass 1
(B.P.1)
Bypass 2
(B.P.2)
Bypass 3
(B.P.3)
Valve seat size
(V.S.)
Starter jet
(G.S.1)
Starter jet
(G.S.2)
Fuel level
(F.L.)
Engine idling speed
Vacuum pressure at idling speed
3LR-01
#150
ø2.0
5DZ19-3
Y-0
#42.5
#95
2 and 1 / 2 turn out
0.9
0.8
0.8
0.9
1.5
#45
#0.8
15
17 mm (0.59
0.66 in)
950
1,050 r / min
200 mm Hg (7.87 in Hg)
CHASSIS
Model
VMX12
Front suspension:
Front fork travel
Fork spring free length
<Limit>
Collar length
Spring rate:
K1
K2
Stroke
K1
K2
Optional spring
Oil capacity
Oil level
Oil grade
Enclosed air pressure (standard)
<Min.
Max.>
140 mm (5.51 in)
386.5 mm (15.2 in)
<381.5 mm (15.0 in)>
245 mm (9.65 in)
3.75 N / mm (0.375 kg / mm, 21.0 lb / in)
4.90 N / mm (0.5 kg / mm, 28.0 lb / in)
0
78 mm (0
3.07 in)
78
140 mm (3.07
5.51 in)
No.
619 cm
3
(21.8 lmp oz, 20.9 US oz)
123 mm (4.8 in)
Yamaha fork oil 10wt or equivalent
39.2 kPa (0.4 kg / cm
2
, 5.7 psi)
<39.2
98.1 kPa (0.4
1.0 kg/cm
2
, 5.7
14.2 psi)>
Front disc brake:
Type
Disc outside diameter
thickness
Pad thickness
Inner
<Limit>
Pad thickness
Outer
<Limit>
Dual
298
5.0 mm (11.7
0.20 in)
5.0 mm (0.20 in)
<0.5 mm (0.02 in)>
5.0 mm (0.20 in)
<0.5 mm (0.02 in)>
Master cylinder inside diameter
Caliper cylinder inside diameter
Brake fluid type
15.87 mm (0.63 in)
33.96 + 30.23 mm (1.33 + 1.19 in)
DOT #4 or DOT #3
