Suzuki GSX R 1000 Page 54
ENGINE
DESIGN
Engine Design
4-13
(3) Camshaft
The camshaft is made of high-strength cast-iron alloy (containing nickel, chrome and
molybdenum).
Lightweight camshaft means reduced inertia, by which the camshaft can be more accurately
controlled by the cam chain.
The wall thickness of the camshaft on the 2003 GSX-R1000 is thinner than the 2002 GSX-R1000.
The inner diameter of the hollow camshaft is increased from 15.5mm on the 2002 GSX-R1000 to
16.5mm on the 2003 GSX-R1000, while the outer diameter is 24mm, which is unchanged.
As a result, intake camshaft on the 2003 GSX-R1000 is 45 grams lighter than the 2002 GSX-
R1000. The exhaust camshaft on the 2003 GSX-R1000 is 35 grams lighter than the 2002 GSX-
R1000.
2003 GSX-R1000 Camshaft Specification Chart
2003 GSX-R1000
Inner Diameter, Intake and Exhaust
16.5mm
Outer Diameter, Intake and Exhaust
24.0mm
Material, Intake and Exhaust
High Strength Cast Iron
2002 GSX-R1000
15.5mm
24.0mm
High Strength Cast Iron
Weight Reduction, Intake
Weight Reduction, Exhaust
35 g
-
45 g
-
2003 GSX-R1000 Camshaft
