TOHATSU BFT115A Service Manual page 410

CYLINDER HEAD
Hold the hexagonal parts of the intake camshaft (1) and
exhaust camshaft (2) with a wrench or equivalent tool,
then align the intake cam sprocket mark (3) and
exhaust cam sprocket mark (4) as shown.
At this position, the No. 1 piston is at top dead center on
compression stroke.
Make sure that the intake cam sprocket punch mark (5)
and exhaust cam sprocket punch mark (6) is positioned
as shown.
Install the cam chain (7) so that the punch marks of the
cam sprockets
corresponding color plates (8) (2 places) as shown.
• To adjust the camshaft position, turn the camshaft
by holding the hexagonal parts of both the intake
and exhaust camshafts with the wrench or
equivalent tool as shown.
• Make sure that the crankshaft side color plate is
aligned with the index mark of the crankshaft
sprocket.
Check that the crankshaft sprocket and camshaft
sprockets are in alignment with the No.1 piston at top
dead center on compression stroke.
Install the cam chain tensioner (1) by aligning its
cutouts (2) with the recess (3) in the cam chain
tensioner arm (4) while pushing it toward the cam chain
side.
Install and tighten the two bolts (5) to the specified
torque.
TORQUE: 12 N·m (1.2 kgf·m, 9 lbf·ft)
Remove the 1.5 mm O.D. pin (6).
14-18
are positioned between
INTAKE SIDE:
(1)
the
(6)
(4)
(7)
(6)
(1)
(3)
EXHAUST SIDE:
(2)
(5)
(3)
(8)
(5)
(4)
(2)