SPEC
MAINTENANCE SPECIFICATIONS
2-8
Item Standard Limit
Ballancer
Ballancer drive method Gear
Clutch
Clutch release method Inner push, cam push
Friction plate thickness 2.72 - 2.88 mm •••
Wear limit ••• 2.60 mm
Plate quantity 6 pcs
Friction plate thickness 2.94 - 3.06 mm •••
Wear limit ••• 2.8 mm
Plate quantity 2 pcs
Clutch plate thickness 1.20 mm •••
Plate quantity 7 pcs
Max. warpage ••• 0.20 mm
Clutch spring free length 42.8 mm •••
Plate quantity 5 pcs
Clutch housing thrust clearance 0.070 - 0.071 mm •••
Transmission
Max. main axle runout ••• 0.08 mm
Max. drive axle runout ••• 0.08 mm
Shift mechanism type Cam drum and guide bar
Carburetor
ID mark 5CH5 10
Main jet #1:#150 #2:#145
Main air jet #1:1.0 #2:0.9
Jet needle #1:5C5A-3/5 #2:5Y18-3/5
Needle jet 2.600
Cutaway 4.00
Pilot air jet 1 # 0.8 mm
Pilot jet # 50
Bypass 1 # 1.0
Pilot screw turns out 2-3/4 +/- 1/2
Valve seat size 2.5
Starter jet 1 # 74
Float height 6.0 - 8.0 mm •••
Engine idle speed 1,150-1,450 r/min •••
CO% 1.5 - 3 •••
Intake vacuum 30.6-33.36 kPa - 230-250 mm Hg •••
Lubrication system Dry sump
Oil filter type Paper type
Oil pump:
Oil pump type Trochoid type
Inner rotor to outer rotor tip clearance 0.12 mm 0.20 mm
Outer rotor to pump housing
clearance 0.030 - 0.080 mm 0.150 mm
Bypass valve opening pressure 80.0 - 120.0 kPa (0.8 - 1.2 kgf/cm
2
) •••
Relief valve operating pressure 80.0 - 120.0 kPa (0.8 - 1.2 kgf/cm2) •••
Oil pressure (hot) 13.0 kPa (0.13 kgf/cm2)/1,300 r/min •••
Pressure check location Oil filter chamber •••