APRILIA SX 125 User Manual

•
Remove the oil seals (7) from the dou-
ble connecting rod.
•
Slide off the pin (8).
•
Using a specific extractor, take out the
ball retainer (9).
•
Remove the belleville spring (10).
•
Remove the sealing ring (11).
•
Remove both oil seals (12).
•
Slide off the pin (13).
•
Using a specific extractor, take out the
ball retainer (14).
•
Remove both sealing rings (15).
•
Remove both oil seals (16).
•
Slide off the pin (17).
•
Using a specific extractor, take out the
ball retainer (18).
CAUTION
WASH ALL THE PARTS WITH CLEAN DETERGENT.
Checking
CAUTION
CHECK THAT NO COMPONENT IS NOTICEABLY DISTORTED, DAMAGED, CRACKED AND/OR
DENTED.
REPLACE ALL DAMAGED COMPONENTS.
BALL RETAINER
Turn the ball retainers manually; they must rotate smoothly, continuously and silently.
There must be no axial clearance.
Replace the ball retainers that present these problems.
Apply grease on the rollers.
GASKETS
Check that the gaskets are in good conditions; replace them if they show signs of damage or excessive
wear.
RX SX 125 Suspensions
SUSP - 171

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