Triumph Bonneville Handbook page 42

General Information
Drive Chain: Check drive chain for correct
adjustment and lubrication (page 70).
Nuts, bolts, fasteners: Visually check that
steering and suspension components, axles,
and all controls are properly tightened or
fastened. Inspect all areas for loose/damaged
fasteners.
Steering Action: Smooth but not loose from
lock to lock. No binding of any of the control
cables (page 79).
Brakes: Pull the brake lever and push the
brake pedal to check for correct resistance.
Investigate any lever/pedal where the travel is
excessive before meeting resistance, or if
either control feels spongy in operation (page
74).
Brake Pads: There should be more than
0.06 in (1.5 mm) of friction
remaining on all the pads (page 74).
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Brake Fluid Levels: No brake fluid leakage.
Brake fluid levels must be between the
'MAX' and 'MIN' marks on both reservoirs
(page 75).
Front Forks: Smooth action. No fork oil
leakage (page 81).
Throttle: Throttle grip free-play 0.08-0. 1 2 in
(2-3 mm). Ensure that the throttle grip
returns to the idle position without sticking
(page 66).
Clutch: Smooth operation and correct cable
free-play (page 69).
Electrical equipment: All lights and horn
function correctly (page 25).
Engine stop: Stop switch turns the engine
off (page 30/44).
Stand: Returns to the fully up position by
material
spring tension. Return springs not weak or
damaged (page 40).