Maintenance Procedures; Valve Clearance - HYOSUNG Aquila 250 Service Manual

2-3 PERIODIC MAINTENANCE
MAINTENANCE PROCEDURE
This section describes the service procedure for
each section of the periodic maintenance.

VALVE CLEARANCE

NOTE:
Inspect Initial 1,000 km and Every 4,000 km.
CAUTION
The clearance specification is for COLD state.
The valve clearance specification is different for
intake and exhause valves.
Valve clearance adjustment must be checked and
adjusted, 1) at the time of periodic inspection, 2)
when the valve mechanism is serviced, and 3)
when the camshaft is disturbed by removing it for
servicing.
● Remove the spark plug. (Refer to page 2-5)
● Remove the right air cleaner box.
● Remove the fuel tank. (Refer to page 4-1)
● Remove the cylinder head cover ① and ②.
● Remove the magneto cover plug ③ and the timing
inspection plug ④.
①
[ Front Cylinder ]
②
[ Rear Cylinder ]
④
③