APRILIA SPORTCITY ONE 125 Service Station Manual

- Remove the oil seals with the appropriate tool.
- Remove the lower spring supports.
Specific tooling
020431Y Valve oil seal extractor
Removing the cylinder - piston assy.
- Remove the chain guide pad.
- Remove the cylinder base gasket.
CAUTION
TO AVOID DAMAGING THE PISTON, SUPPORT IT WHILE
REMOVING THE CYLINDER.
- Remove the two stop rings, the wrist pin and the
piston.
- Remove the 3 piston rings from the piston.
NOTE
BE CAREFUL NOT TO DAMAGE THE PISTON RINGS DUR-
ING REMOVAL.
Inspecting the small end
- Measure the internal diameter of the small end
using an internal micrometer.
NOTE
IF THE DIAMETER OF THE ROD SMALL END EXCEEDS
THE MAXIMUM DIAMETER ALLOWED, SHOWS SIGNS OF
WEAR OR OVERHEATING REPLACE THE CRANKSHAFT
AS DESCRIBED IN THE "CRANKCASE AND CRANK-
SHAFT" CHAPTER".
Characteristic
Rod small end check-up: Maximum diameter
15.030 mm
Engine SPORTCITY ONE 125
ENG - 88

APRILIA SPORTCITY ONE 125 Specifications

General

Engine Type	Single cylinder, 4-stroke
Displacement	124 cc
Cooling System	Air-cooled
Fuel System	Carburetor
Front Suspension	Telescopic fork
Rear Suspension	Single shock absorber
Front Brake	Disc
Rear Brake	Drum
Front Tire	120/70 - 14
Rear Tire	120/70 - 14
Transmission	Automatic
Fuel Capacity	7 liters