Service manual

ManualsBrandsYamaha ManualsCassette PlayerK-98

ENGINE SPECIFICATIONS

SPEC

2 - 10

Shifting mechanism

Shift mechanism type Guide bar ----

Max. shift fork guide bar bending ---- 0.025 mm

(0.001 in)

Shift fork thickness 6.26 ~ 6.39 mm (0.246 ~ 0.252 in) ----

Air ﬁlter type Dry element ----

Fuel pump

Pump type Electrical ----

Model (manufacturer) 4WM (MITSUBISHI) ----

Output pressure 15 ~ 20 kPa

(0.15 ~0.20 kgf/cm

2

, 2.1 ~ 2.8 psi)

----

Carburetor

Model (manufacturer)

× quantity BSR40 (MIKUNI)

× 1 ----

Throttle cable free play (at the

ﬂange of the throttle grip)

3 ~ 5 mm (0.12 ~ 0.20 in) ----

ID mark 4WM1 00 ----

4WM2 10 (for California) ----

Main jet #165 ----

Main air jet #60 ----

Jet needle 6HDC26 ----

Needle jet X-2 ----

Pilot air jet #100 ----

Pilot outlet 1.0 (XV16A), 1.1 (XV16AT) ----

Pilot jet #35 ----

Bypass 1 0.9 ----

Bypass 2 1.0 ----

Bypass 3 0.9 ----

Pilot screw turns out 2-1/2 ----

Valve seat size 2.0 ----

Starter jet 1 #57.5 ----

Starter jet 2 1.0 ----

Butterﬂy valve size #110 ----

Fuel level (below the ﬂoat cham-

ber mating surface)

2.0 ~ 3.0 mm (0.079 ~ 0.12 in) ----

Item Standard Limit

2