Suzuki drz 400 2007 User Manual

CAMSHAFT/AUTOMATIC DECOMPRESSION
ASSEMBLY
I ACAUTION I
Do not attempt to disassemble the camshaft/automatic
decompression assembly. It is not serviceable .
AUTOMATIC DECOMPRESSION
Move Ihe automatic decompression weighl by hand 10 inspect if
it
is operaling smoothly. If the automatic decompression weight
does not operate
smoothly, replace it with a new one.
CAM WEAR
Worn-down cams are often the cause of mistimed valve opera-
tion resulting in reduced power output.
Measure the cam height
<ED using the micrometer. If the cams
are worn
to the service limit, replace the camshaft with new a
one.
EI 09900-20202: Micrometer (25 - 50 mm)
_ Cam height <ED
Service Limit:
IN : 36.190 mm (1.4246 in)
EX : 35.490 mm (1.3972 in)
ENGINE 3-31
H
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Suzuki drz 400 2007 Specifications

General

Year	2007
Manufacturer	Suzuki
Model	DR-Z400
Category	Dual-sport
Displacement	398 cc
Bore x Stroke	90.0 mm x 62.6 mm
Compression Ratio	11.3:1
Transmission	5-speed
Final Drive	Chain
Front Suspension	Telescopic, coil spring, oil damped
Front Brakes	Single disc
Rear Brakes	Single disc
Front Tire	80/100-21
Rear Tire	120/90-18
Seat Height	935 mm (36.8 in)
Fuel System	Mikuni BSR36 carburetor
Ignition	CDI
Rear Suspension	Link type, coil spring, oil damped
Ground Clearance	300 mm
Wheelbase	1, 485 mm
Fuel Capacity	10.0 L (2.6 US gal)
Engine Type	Single-cylinder, four-stroke