Checking The Spark Advance - PIAGGIO Vespa LX 150 4T Euro 3 Service Station Manual

Vespa LX 125 - 150 4T Euro 3
Engine oil - replacement
Hub oil - change
Spark plug - replacement
Air filter - clean
Engine oil - change
Oil filter (net filter) - clean
Valve clearance - adjustment
Idle speed (*) - adjustment
Throttle lever - adjustment
Pads and variator rollers - replacement
Driving belt - replacement
Odometer cable - greasing
Steering - adjustment
Cylinder ventilation system - check
Brake control levers - greasing
Brake pads - check condition and wear
Brake fluid level - check
Flexible brake tubes - replacement
Transmission elements - lubrication
Safety locks - check
Suspensions - check
Electrical system and battery - check
Headlight - adjustment
Secondary air filter - cleaning
Centre stand - lubrication
Tyre pressure and wear - check
Vehicle and brake test - road test
(*) See instructions in «Idle speed adjustment» section

Checking the spark advance

The scooter is fitted with a control unit that manages ignition advance according to engine revs and the
opening angle of the carburettor throttle valve.
Spark advance variation
Specification
Operation threshold
Reactivation threshold
Spark elimination
Braking system
Action
LIMITER ACTIVATION
Desc./Quantity
First threshold : 9500 ± 50
Second threshold : 9800 ± 50
First threshold : 9500 ± 50
Second threshold : 9350 ± 50
First threshold : 15 on 15
Second threshold : 15 on 15
Maintenance
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