APRILIA SX 125 User Manual

Disassembling the piston
•
Remove the cylinder.
•
Remove one of the two seeger rings of
the pin using a suitable tool.
CAUTION
BEFORE TAKING OUT THE PIN SEEGER RING, COVER
THE CRANKCASE OPENING WITH A CLOTH SO THAT THE
RING DOES NOT FALL INTO THE CRANKCASE.
NOTE
IT IS NOT NECESSARY TO REMOVE BOTH PIN SEEGER
RINGS.
•
Tap the pin out with a suitable punch.
CAUTION
WHILE TAPPING OUT THE PIN, HOLD THE PISTON WITH
ONE HAND SO THAT THE CONNECTING ROAD DOES NOT
BEND.
•
Remove the piston and collect the ball
retainer.
CAUTION
WHILE TAPPING OUT THE PIN, HOLD THE PISTON WITH
ONE HAND SO THAT THE CONNECTING ROAD DOES NOT
BEND.
See also
Removing the cylinder
RX SX 125 Engine
ENG - 107

APRILIA SX 125 Specifications

General

Displacement	124.2 cc
Cooling System	Liquid cooled
Fuel System	Electronic fuel injection
Transmission	6-speed
Rear Suspension	Monoshock
Front Tire	100/80-17
Rear Tire	130/70-17
Compression Ratio	12.5:1
Starter	Electric
Clutch	Wet multi-plate
Front Brake Disc	300 mm
Rear Brake Disc	220 mm
Dry Weight	134 kg
Bore x Stroke	58 mm x 47 mm
Max Power	11 kW (15 HP) @ 10, 000 rpm
Front Suspension	41 mm USD fork
Front Brake	Single 300 mm disc
Rear Brake	Single disc
Fuel Tank Capacity	7 liters
Frame	Steel perimeter
Engine Type	Single-cylinder, 4-stroke