Removing The Cylinder Head Covers; Removing The Rocker Arms, Push Rods And Valve Lifters; Removing The Camshafts - Yamaha XV19SX(C) Service Manual

ET1D71030

REMOVING THE CYLINDER HEAD COVERS

1. Remove:
• Front cylinder
• Rear cylinder "1"
NOTE:
Due to the small clearance between the frame
and the rear cylinder head cover, the three bolts
"2" cannot be removed when the cover is in
place. Loosen the bolts, and then remove the
cover from the right side of the vehicle, making
sure that the bolts do not scratch the rocker arms
or other engine parts.
2
1
EAS23790
REMOVING THE ROCKER ARMS, PUSH
RODS AND VALVE LIFTERS
1. Align:
• TDC mark "a" on the crankshaft position sen-
sor rotor
(with the pointer "b" on the clutch cover)
M MMM M MMM M M MMM M M MMM M
a. Turn the crankshaft counterclockwise.
b. When piston #1 is at TDC on the compres-
sion stroke, align the TDC mark "a" on the
crankshaft position sensor rotor with the
pointer "b" on the clutch cover.
c. Check the camshaft drive gear mark "c" posi-
tion and camshaft driven gear mark "d" posi-
tion as shown.
If the marks are not aligned, turn the crank-
shaft counterclockwise 360 degrees and re-
check step (b).
2
M MMM M M MMM M MMM
a
b
L LLL L LLL L L LLL L
2. Remove:
• Rocker arm bases
(with the rocker arms)
3. Remove:
• Valve lifters
NOTE:
Make a note of the position of each valve lifter so
that they can be installed in the correct place.
EAS23830

REMOVING THE CAMSHAFTS

1. Loosen:
• Camshaft driven gear bolt "1"
NOTE:
• Place a folded copper washer "2" between the
teeth of the camshaft drive gear and camshaft
driven gear in order to lock them.
• Do not damage the teeth of the camshaft drive
and camshaft driven gears.
5-24
CAMSHAFTS
d
c
L LLL L L LLL L L LLL L LLL