3.ENGINE
3-1
a
b
c
d
3. ENGINE
REMOVING THE CYLINDER HEAD ············· 3-1 CHECKING THE CYLINDER HEAD ·············· 3-2
CHECK THE TIMING CHAIN TENSIONER ····· 3-2 INSTALLING THE CYLINDER HEAD ············ 3-3
REMOVE THE ROCK ARMS AND CAMSHAFT 3-4 CHECK THE CAMSHAFT ··························· 3-4
CHECKING
THE
ROCKETER
ARMS
AND
ROCKER ARM SHAFTS ····························· 3-4
REMOVING THE VALVES ··························· 3-4
REMOVING THE PISTON ··························· 3-5 CHECKING THE TIMING CHAIN GUIDE ······· 3-5
CHECKING THE CYLINDER AND PISTON ····· 3-5 CHECKING THE PISTON RINGS ·················· 3-5
INSTALLING THE PISTON AND CYLINDER ·· 3-5 REMOVING THE CDI MAGNETO ROTOR ······ 3-6
INSTALLING THE CDI MAGNETO ROTOR ···· 3-7 CHECKING THE OIL PUMP ························· 3-7
ASSEMBLING THE OIL PUMP ····················· 3-8 INSTALLING THE OIL PUMP ······················ 3-8
CHECK THE STARTER WHEEL ··················· 3-8 CHECKING THE STARTER CLUTCH ············· 3-8
REMOVING THE PRIMARY SHEAVE ············ 3-9 REMOVING THE SECONDARY SHAEAVE ····· 3-9
SEPARATING THE CRANKCASE ················· 3-9 CHECKING THE CRANKCASE ···················· 3-9
CHECKING THE TIMING CHAIN AND TIMING
CHAIN GUIDE ········································· 3-9
CHECKING THE CRANKSHAFT ·················· 3-10
CHECK THE BEARINGS····························· 3-10 ASSEMBLING CRANKCASE ······················· 3-10
REMOVING THE TRANSMISSION ··············· 3-11 CHECKING THE SHIFT FORK ····················· 3-11
CHECKING THE SHIFT FORN ····················· 3-11 ASSEMBLING THE MAIN AXLE ·················· 3-12
INSTALLING THE SHIFT FORK AND SHIFT
DRUM ···················································· 3-12
INSTALLING THE SHIFT LEVER·················· 3-12
REMOVING THE CYLINDER HEAD
1.Align
：
“I”make “a” on the CDI magneto rotor
（
with the
stationary pointer “b” on the CDI magneto rotor
）
When the piston is at TDC on the
Compression stroke
，
align the punch make “c”on
the camshaft sprocket with the mark“d”on the
cylinder head.
