Engine Oil; Oil Level Inspection - Triumph Bonneville Owner's Handbook Manual

Maintenance and Adjustment

Engine Oil

1
T908027
1. Filler
2. Sight glass
3. Oil level (correct level shown)
4. Crankcase oil level lines
In order for the engine, transmission, and
clutch to function correctly, maintain the
engine oil at the correct level, and change the
oil and oil filter in accordance with scheduled
maintenance requirements.
Warning
Motorcycle operation with insufficient,
deteriorated, or contaminated engine oil
will cause accelerated engine wear and
may result in engine or transmission
seizure. Seizure
transmission may lead to loss of control
and an accident.
66
of the engine
2

Oil Level Inspection

Start the engine and run at idle for
approximately five minutes.
Stop the engine, then wait for at least three
minutes for the oil to settle.
Note the oil level visible in the sight glass.
When correct, oil should be visible in the
sight-glass at a point mid-way between the
upper (maximum) and lower (minimum)
horizontal lines marked on the crankcase.
Note:
• An accurate indication of the level
of oil in the engine is only shown
when the engine is at normal
operating temperature and the
motorcycle is upright (not on the
side stand).
If it is necessary to top up the oil level,
or
remove the filler plug and add oil, a little at a
time, until the level registered in the sight
glass is correct.
4
3