Suzuki Madura GV700GL Service Manual page 107

3·77 ENGINE SERVICING
CAMSHAFT TIMING
• Before installing camshaft, make sure that
punched mark on the crankshaft indicates the
bottom and engraved line
CD
on the idler shaft
driven sprocket meets the index mark
®
on the
crankcase.
FRONT CYLINDER
• Hold the crankshaft and idler shaft steady and
lightly pull up the cam drive chain to remove the
slack between the idler shaft sprocket and front
exhaust cam sprocket.
• Exhaust camshaft bears a marked "E" on its
right end. Turn over the E-camshaft so that the
engraved line on the right end of the E-camshaft
points flush with the gasketed surface of the
cylinder head. Engage the cam drive chain with
this sprocket.
• Count the chain pins toward the intake camshaft,
which is identified by letter "F", starting from
the pin directly above the engraved line on the
E-camshaft sprocket and ending at the 18th pin.
• Engage the chain with intake sprocket, locating
the 18th pin at and above the engraved line on
the intake sprocket.
NOTE:
The timing chain is now riding on all three
sprockets. Be careful not to disturb the
crankshaft and idler shaft until the rear cam
timing is done and the eight holders and chain
tensioner adjuster are secured.
• Each camshaft holder is identified with a east-on
letter. A matching east-on symbol appears on
the head. Install each holder at it's matching
letter. Install positioning pins to each camshaft
holder.
• Secure the eight camshaft journal holders evenly
by tightening the cylinder head bolts and the
camshaft journal holder bolts sequentially. Try
to equalize the pressure by moving the wrench
diagonally from one bolt to another and from
one camshaft journal holder to another, to push
shafts down evenly.
• Position the proper bolts in length as shown in
the illustration on the next page.
• Tighten the cylinder head nuts to the specified
torque.
"E"-mark
18th pin