Specifications

c
t
L
2) Gear ratio: 1st 32113 (2.461)
2nd 27/l 7 (1.588)
3rd 26/20 (1.300)
4th
23/21 (1.095)
5th 22/23 (0.956)
31 Bearing: Main axle
(Left1
Needle bearing (@20-$30-20)
(Right1
Ball bearing ($25-e 52-20.6)
Drive axle (Left1 Ball bearing ($30.$62-23.61
(Right1
Needle bearing (020.030-161
41 Oil seal type Drive axle (Left)
SDD-40-62-9
51 Secondary reduction ratio and method
34117
(Z.OOO)/Chain
16. SHIFTING MECHANISM
1 I Type
2) Oil seal type (Change lever)
17. KICK STARTER
1) Type
2) Oil seal type (Kick axle)
31 Kick clip friction tension
18. INTAKE
1) Air cleaner: Type/Quantity
2) Cleaner cleaning interval
19. CARBURETOR
1) Type and manufacturer/Quantity
T
L
_
i
21 I.D. mark
3) Main jet
4) Air jet
5) Jet needle
61 Needle jet
7) Throttle valve
8) Pilot jet
9l Pilot screw (Turns out)
101 starter jet
11 I Fuel level
12) Idling engine speed
20. LUBRICATION
1) Engine sump oil quantity
2) Oil type and grade
31 Oil pump type
4) Trochoid pump specifications
Top clearance
Tip clearance
Side clearance
Oil pump volume
5) Bypass valve setting pressure
(M.J.1
1A.J.l
(J.N.)
(N.J.)
(Th.V.)
(P.J.1
(P.S.1
IG.S.)
(F.L.)
Cam drum, return type
SDO-14-24-6
Bendix type
SD-25-35-7
1.2 - 1.7 kg (2.6 - 3.7 lb)
Dry. foam rubber/2 pcs.
Every 6,000 km (5,000 mile)
BS34 MIKUNl/2 pcs.
3G l-00
#132.5
#85
5HX12
Y-O
#135
#42.5
Preset
#30
27.3 + 0.5 mm (1.075? 0.020 in)
1.200 rlmin
Oil exchange: 2.0 lit (2.1 US qt)
Overhaul: 2.5 lit (2.6 US qt)
Yamalube
4-cycle oil or SAE 2OW/40 type
“SE” motor oil
Trochoid pump
0.10 - 0.18 mm (0.0039 - 0.0071 in)
0.03 - 0.09 mm (0.0012 - 0.0035 in)
0.03 - 0.08 mm (0.0012 - 0.0031 in)
1.3 litlmin (1.37 qtlminl at 1,000 rlmin
1.0 kg/cm’ (14 psi)
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