CHAPTER 3B ENGINE 50cc/80cc ATV SERVICE MANUAL09.0
CHAPTER 3B ENGINE PAGE 3B - 17 -
Assemble locating pin.
Assemble camshaft seat and nut into cylinder
head.
Lock cylinder head nuts securely.
Torque value:
Camshaft fixed nut: 20N.m 15 ft lbs
Camshaft chain regulator assembling
Firstly build up camshaft chain regulator and
spacer.
Secondly lock two fixed bolts.
Thirdly put spring into camshaft chain
regulator Finally assemble O-ring and fixed
bolt.
Press down regulator master jaw and drive
down driving bar when camshaft chain
regulator is assemblied.
Torsion value:8-12 N.m
Regulate valve gap
Change the ring of cylinder head cover and
assemble cylinder head cover.
Put O-ring into furrow.
Lock fixed screws of cylinder head cover
Torsion value:5-8N.m
· Spread glue on threading position of
camshaft fixed seat screw.
·Lock two or three times at diagonal of
camshaft fixed seat screws.
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