EnginereassemblyprocedureEnginereassemblyprocedure
2.Tighteningtorque2.Tighteningtorque
1.Notice1.Notice
・・CleanpartscompletelyspecificallythePISTON,CYLINDER,CRANKCASE,CleanpartscompletelyspecificallythePISTON,CYLINDER,CRANKCASE,
CRANKSHAFTandBEARINGS.CRANKSHAFTandBEARINGS.
・・RemovecompletelyallthecarbondepositfromthrCOMBUSTIONCHAMBERandtheRemovecompletelyallthecarbondepositfromthrCOMBUSTIONCHAMBERandthe
PISTONtop.PISTONtop.
・・BecarefulnottodamagethematingfacebetweentheCYLINDERHEADandCYLINDER,andtheonebetweentheBecarefulnottodamagethematingfacebetweentheCYLINDERHEADandCYLINDER,andtheonebetweenthe
CYLINDERandCRANKCASE,andnottoletanyforeignmaterialcomeintothem.CYLINDERandCRANKCASE,andnottoletanyforeignmaterialcomeintothem.
・・TestthelipoftheOILSEALSfordamage.ReplacedamagedOILSEALSwithnewones.TestthelipoftheOILSEALSfordamage.ReplacedamagedOILSEALSwithnewones.
Applyoiloverthelipbeforereassembly.Applyoiloverthelipbeforereassembly.
・・ReplaceallGASKETSwithnewones.ReplaceallGASKETSwithnewones.
・・ReplacePINSandSCREWSwithnewonesifnecessary.ReplacePINSandSCREWSwithnewonesifnecessary.
・・Tightenupthetighteningtorquespecifiedpartsaccordingtothespecifiedtighteningtorque.Tightenupthetighteningtorquespecifiedpartsaccordingtothespecifiedtighteningtorque.
・・Apply4-strokeengineoilovertherotatingportionsandslidingsurfaces.Apply4-strokeengineoilovertherotatingportionsandslidingsurfaces.
・・Checkandadjusttheclearance.Checkandadjusttheclearance.
・・Afterreassemblingeachoftherotatablemainparts,rotatebyhandtotestitforAfterreassemblingeachoftherotatablemainparts,rotatebyhandtotestitfor
badmovementsandabnormalnoises.badmovementsandabnormalnoises.
Forfurtherassemblinginstructionsoneachpart,seethecorrespondingpages.Forfurtherassemblinginstructionsoneachpart,seethecorrespondingpages.
CRANKCASE
〜CYLINDER
FLYWHEEL +50 +5.0
0 0
COIL +20 +2.0
〜CRANKCASE 0 0
RETANER,PLATE +15 +1.5
〜CRANKCASE 0 0
BOLT
(DRAINBOLT)
CASE,OIL M5×25W,SW +15 +1.5
〜CRANKCASE SCREW 0 0
CYLINDERHEAD +20 +2.0
〜CYLINDER -10 -1.0
COVER,CAMGEAR +15 +1.5
〜CYLINDER 0 0
ROCKERCOVER +15 +1.5
〜CYLINDERHEAD 0 0
SPARKPLUG
MUFFLER +20 +2.0
〜CYLINDERHEAD -10 -1.0
INSULATOR +15 +1.5
〜CYLINDERHEAD 0 0
INSULATOR +15 +1.5
〜CYLINDER 0 0
CASE,INTAKE +20 +2.0
〜INSULATOR 0 0
PULLEY
CAP,OIL
16
17
18
15
ceremonial
handclapping
9
11
14
1
2.0
2
5
7
8
FastenwiththeGASKET
CARBURETOR.
PULLEY(M10)
widthacrossflats15
90〜110 8.8〜10.8
1
M,5×65W,SW
SCREW
20
20
M4×10SW
SOCKETHEADBOLT
120
M6×30
SOCKETHEADBOLT
40
pcs
M8×12
BOLT
1
4.9
±10 ±1.0
M4×20W,SW
SOCKETHEADBOLT
M10
FRANGENUT
50
350
Notice
Fastenwiththe
CASE,OILandGASKET
Becarefulnottofailto
placetheGASKET.
6
90
M6×30
SOCKETHEADBOLT
6
8.8
±10 ±1.0
No. Tighteningpart
(kgf・cm)
Tighteningtorque
(N・m)
Thekindofscrew
1
34.3
20
12
40
M5×30W,SW
SCREW
4
2.0
3.9
2
13
110
CMR6A(M10) ±20
1
2.0
5
3.9
40
M,5×14W,SW
SCREW
1
3.9
40
M,5×25W,SW
SCREW
2
3.9
3
Becarefulnottofailto
placetheWASHER.
TightentheBOLTagain
aftertestrun.
1
2
M6×70
SOCKETHEADBOLT
140 13.7
10.8
3.9
±2.0
11.8
M5×16W,SW
SCREW
40