Checking The Rocker Arms And Rocker Arm Shafts; Checking The Push Rods; Removing The Cylinder Heads; Checking The Cylinder Heads - Yamaha MX800V Service Manual

CYLINDER HEAD COVERS, CYLINDER HEADS
1
CHECKING THE ROCKER ARMS AND ROCKER
ARM SHAFTS
The following procedure applies to all of the rocker arms
and rocker arm shafts.
1.
Check:
• Rocker arm "1"
• Rocker arm shaft "2"
Wear/damage/cracks  Replace.
2

CHECKING THE PUSH RODS

The following procedure applies to all of the push rods.
1.
Check:
• Push rod runout
Runout limit:
0.3 mm (0.0118 in)
Out of specifications  Replace.

REMOVING THE CYLINDER HEADS

The following procedure applies to all of the cylinder
heads.
1.
Remove:
• Cylinder head
TIP
Set the piston at TDC (top-dead-center) on the compres-
sion stroke.
(Refer to "ADJUSTING THE VALVE CLEARANCE" on
page 2-9)

CHECKING THE CYLINDER HEADS

The following procedure applies to all of the cylinder
heads.
3-23
1
2
3
4
5
6
7
8
9
10