Cylinder Head Cover Inspection; Camshaft Inspection - Suzuki GSF650A Service Manual

1D-34 Engine Mechanical:

Cylinder Head Cover Inspection

Inspect the cylinder head cover in the following
procedures:
1) Remove the cylinder head cover. Refer to "Engine
Top Side Disassembly (Page 1D-24)".
2) Clean and check the gasket grooves "A" and PAIR
reed valve gasket mating surfaces "B" of cylinder
head cover.
If it is damaged, replace the cylinder head cover with
a new one.
"A"
"B"
3) Install the cylinder head cover. Refer to "Engine Top
Side Assembly (Page 1D-26)".

Camshaft Inspection

Refer to "Engine Top Side Disassembly (Page 1D-24)".
Refer to "Engine Top Side Assembly (Page 1D-26)".
Camshaft Identification
The exhaust camshaft has the embossed letters "EX"
and the intake camshaft has the embossed letters "IN".
"IN "
B817H21406019
"A"
"A"
"B"
I717H1140099-01
B817H21406020
"EX "
I717H1140100-01
Cam Wear
Check the camshaft for wear or damage.
Measure the cam height "a" with a micrometer.
Replace a camshaft if the cams are worn to the service
limit.
Special tool
: 09900–20202 (Micrometer (1/100 mm, 25 – 50
mm))
Cam height "a"
Service limit: (IN) 35.35 mm (1.3917 in)
Service limit: (EX) 35.07 mm (1.3807 in)
Camshaft Runout
Measure the runout using the dial gauge. Replace the
camshaft if the runout exceeds the limit.
Special tool
(A): 09900–20607 (Dial gauge (1/100 mm, 10
mm))
(B): 09900–20701 (Magnetic stand)
(C): 09900–21304 (V-block (100 mm))
Camshaft runout (IN & EX)
Service limit: 0.10 mm (0.004 in)
(A)
(C)
Camshaft Journal Wear
Inspect the camshaft journal wear in the following
procedures:
1) Determine whether or not each journal is worn down
to the limit by measuring the oil clearance with the
camshaft installed in place.
"a"
I649G1140199-02
(B)
(C)
I718H1140082-01