HONDA CT110 - Manual (Page 6)

Viscosity:
Viscosity grade of engine oil should be based on average atmospheric temperature in your riding area.
The following provides a guide to the selection of the proper grade or viscosity of oil to be used at
various atmospheric temperatures.
Oil Change
Engine oil quality is the chief factor affecting engine service life. Change the engine oil as specified in
the maintenance schedule .
NOTE Change engine oil with the engine at normal operating temperature and the
motorcycle in an upright position to assure complete and rapid draining.
1. Remove the oil filler cap/dipstick (1) and drain plug (2) to drain the oil.
WARNING A warmed-up engine and the oil in it are hot; be careful not to burn
yourself.
2. With the ignition switch OFF, operate the kick starter several times to drain any oil which may be
left in the engine.
3. Check that the sealing washer on the drain plugs is in good condition and install the plug.
Replace the sealing washer every other time the oil is changed, or each time if necessary.
4. Fill the crankcase with the recommended grade oil; approximately:
0.9 L ( 1.0 US qt, 0.8 Imp qt ) .
5. Install the oil filler cap/dipstick.
6. Start the engine and let it idle for a 2-3 minutes.
7. Stop the engine and check that the oil level is at the upper level mark on the dipstick with the
motorcycle up light on firm, level ground. Make sure there are no oil leaks.
NOTE Please dispose of used engine oil in a manner that is compatible with the
environment. We suggest you take it in a sealed container to your local
service station for reclamation. Do not throw it in the rubbish or pour it on the
ground.
WARNING Used engine oil may cause skin cancer if repeatedly left in contact with the
skin for prolonged periods. Although this is unlikely unless you handle used oil
on a daily basis, it is still advisable to thoroughly wash your hands with soap
and water as soon as possible after handling used oil.
SPARK PLUG
( Refer to the maintenance precaution . )
1. Disconnect the spark plug caps from the spark plug.
2. Clean any dirt from around the spark plug base. Remove the spark plug using the plug wrench
furnished in the tool kit.
3. Inspect the electrodes and center porcelain for deposits, erosion or carbon fouling. If the erosion
or deposit is heavy, replace the plug. Clean a carbon or wet-fouled plug with a plug cleaner,