Suzuki DL650 User Manual

Plug Replacement Guide
CAUTION
an incorrect fit or heat range for
your engine. This may cause
severe engine damage which will
not be covered under warranty.
Use one
of the spark plugs listed
below or equivalent. Consult your
Suzuki dealer or qualified
mechanic if you are not sure
which spark plug is correct for
type of usage.
U22ESR-N plug's insulator is
I CR7E I I
dark, replace with
this plug.
NGK
I CRBE I U27ESR-N 1
plug's insulator is
white, replace with
I If the standard
DENS0
CRBE
I
1 this plug.
REMARKS
NOTE: This motorcycle uses resistor-
type spark plug to avoid jamming
electronic parts.
Improper spark plug
selection may cause electronic inter-
ference with your motorcycle ignition
system, resulting in motorcycle per-
formance problems. Use recom-
mended spark plugs.
U24ESR-N
Installation
Standard
If the standard
CAUTION
l
A crossthreaded or overtightened
spark plug will damage the alumi-
num threads of the cylinder head.
Carefully turn the spark plug by hand
into the threads until it is finger tight. If
the spark plug is new, tighten it with a
wrench about
112 turn past finger
tight. If you are reusing the old spark
plug, tighten it with a wrench about
l/
8 turn past finger tight.
FUEL HOSE
Inspect the fuel hose for damage and
fuel leakage. If any defects are found,
the fuel hose must be replaced.

Suzuki DL650 Specifications

General

Displacement	645cc
Compression Ratio	11.2:1
Fuel System	Fuel injection
Transmission	6-speed constant mesh
Front Suspension	Telescopic, coil spring, oil damped
Rear Suspension	Link type, coil spring, oil damped
Starter	Electric
Final Drive	Chain
Engine Type	4-stroke, liquid-cooled, DOHC, 90° V-twin
Bore x Stroke	81.0mm x 62.6mm
Front Brakes	Disc
Rear Brakes	Disc
Front Tire	110/80R19M/C 59H
Rear Tire	150/70R17M/C 69H
Overall Width	835mm
Overall Height	1405mm
Ground Clearance	170mm
Seat Height	835mm
Fuel Tank Capacity	20.0L