Suzuki drz 400 2002 Service Manual

3- 30 ENGINE
REASSEMBLY
• Inslall
each valve spri ng seat.
• Apply molybdenum oil solulion 10 each oil seal and press-fil
Ihem into position.
l it. CAUTION I
I Do not reuse the oil seals.
• Arrly mn l ybdenlJm oil solution to the valve as shown, and
th en insert them into the va l ve guides.
l it. CAUTION
When inserting each valve into the valve guides, make
sure
not to damage the lip of the oil seal.
• Install
the valve spring with the smaller pitch ® facing the
cylinder head.
® Larger pitch
© Down
• Inst;lll thp v~lvp c:.pring retainer by prQssing down the spring
using the valve lifter. Fit the cotter halves to the stem end and
release the lifter to allow the cotter CD to wedge between the
ret ainer and the va lve stem . Make sure that the rounded lip ®
of the cotter fits sn ugly into the groove @ in the stem end.
S! 09916-14510: Valve spring compressor
09916-14910: Attachment
09916-84511: Tweezers
I it. CAUTIO }J]
Be sure to install all of the parts in their original posi-
tions .
®
~
©
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Suzuki drz 400 2002 Specifications

General

Displacement	398 cc
Bore x Stroke	90.0 mm x 62.6 mm
Compression Ratio	11.3:1
Cooling System	Liquid-cooled
Fuel System	Mikuni BSR36 carburetor
Starter	Electric
Transmission	5-speed constant mesh
Final Drive	Chain
Front Suspension	Telescopic, coil spring, oil damped
Rear Suspension	Link type, coil spring, oil damped
Front Tire	80/100-21
Seat Height	935 mm (36.8 in)
Ground Clearance	300 mm (11.8 in)
Wheelbase	1, 485 mm (58.5 in)
Dry Weight	119 kg (262 lbs)
Engine Type	4-stroke, single cylinder, DOHC
Ignition	CDI
Front Brakes	Disc
Rear Brakes	Disc
Rear Tire	120/90-18
Fuel Capacity	10.0 L (2.6 US gal)