Yamaha YZF-R1 98 Service Manual page 29

Item
Transmission
Transm ission type
Prim ary reduction system
Prim ary reduction ratio
Secondary reduction system
Secondary reduction ratio
Operation
Gear ratios
1st gear
2nd gear
3rd gear
4th gear
5th gear
6th gear
M ax. m ain axle runout
M ax. drive axle runout
Shifting mechanism
Shift m echanism type
M ax. shift fork guide bar bending
Installed shift rod length
Air filter type
Fuel pump
Pum p type
M odel (m anufacturer)
Output pressure
Carburetors
M odel (m anufacturer) × quantity
Throttle cable free play (at the
fl ange of the throttle grip)
ID m ark
M ain jet
M ain air jet
Jet needle
Needle jet
Pilot air jet
Pilot outlet
Pilot jet
Bypass 1
Bypass 2
Bypass 3
Pilot screw turns out
Valve seat size
ENGINE SPECIFICATIONS
Standard
Constant m esh, 6-speed
Spur gear
68/43 (1.581)
Chain drive
43/16 (2.688)
Left-foot operation
39/15 (2.600)
35/19 (1.842)
30/20 (1.500)
28/21 (1.333)
30/25 (1.200)
29/26 (1.115)
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Shift drum
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305 m m
Dry elem ent
Electrical
4SV (M ITSUBISHI)
2
20 kPa (0.2 kgf/cm )
BDSR40 (M IKUNI) × 4
3 ~ 5 m m
4XV1 00
#130
Carburetors 1 and 4: #60
Carburetors 2 and 3: #65
6DEY5-53-3
P-0
#120
1.0
#17.5
0.8
0.9
0.8
2.5
1.5
2 - 9
SPEC
Lim it
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0.08 m m
0.08 m m
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0.1 m m
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