Linhai HY740STL 2018 Service Manual page 55

CHAPTER 3 ENGINE
M750L SERVICE MANUAL 18.0
Warpage measurement and resurfacement
steps:
⚫Place a straight edge and a feeler gauge
across the cylinder head.
⚫Measure the warpage.
If the warpage is out of specification,
resurface the cylinder head.
⚫ Place a 400 ~ 600 grit wet abrasive paper
on the surface plate, and resurface the head
using a figure eight sanding paten.
NOTE:
Rotate the cylinder head several times for an
even resurfacement.
CYINDER HEAD INSTALLATION
1. Install:
⚫Gasket (cylinder head) NEW
⚫Dowel Pin 14×16
⚫Cylinder head
NOTE:
⚫Apply engine oil onto the nut threads.
⚫Tighten the nuts in a crisscross pattern.
2. Tighten:
⚫Nuts (cylinder head)
3. Install:
⚫Cam Chain Sprocket 
⚫Timing chain 
Installing steps :
⚫Turn the CVT primary sheave assembly （or
the primary sheave）counterclockwise until
the TDC mark ○,
matches the stationary
a
pointer ○,
.
b
⚫Align the "I" mark○, (have "EX") on the
c
cam chain sprocket with the up plane○,
of
d
the cylinder head.
NOTE:
If any special mark found, contact the ATV
manufacture via the agent for the parts and
special instruction.
"VALVE CLEARANCE ADJUSTMENT"
Refer to
section, part 5 "Adjust".
⚫Fit the timing chain onto the cam sprocket
and install the cam chain sprocket on the
CHAPTER 3 ENGINE PAGE 3- 24