Checking The Ignition Timing - Derbi GP1 50 cc Workshop Manual

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HECKING THE IGNITION TIMING

Adjust the control cables:

Mixer cable: see "Mixer timing" procedure, below.

Throttle cable:

Adjust the screw on the carburettor so that there is no play

on the sheath.

Splitter control cable:

Adjust the screw on the throttle grip on the handlebar so that

there is no play on the twist grip.

All cables must be adjusted so that there is no play on their

sheaths.

Mixer timing

- Adjust via the transmission screw on the crankcase, with

the throttle cable released, the reference machined on the

rotating plate which must be aligned to that shown on the

mixer body as indicated in the figure.

While performing this operation the engine must be fed with

a 2 oil-fuel mixture (at least 0.5 litres if the tank is empty).

CAUTION

WHEN RUNNING OUT OF OIL OR REMOVING THE OIL

TANK, FOLLOW THE MIXER BLEEDING OPERATIONS AS

FOLLOWS: REFILL THE OIL TANK, WITH THE MIXER FITTED

ONTO THE ENGINE, AND THE ENGINE NOT RUNNING,

DETACH THE MIXER TUBE FROM THE CARBURETTOR AND

LOOSEN THE BLEED SCREW (SEE ARROW IN FIGURE) UN-

TIL OIL STARTS FLOWING OUTWARDS. RECONNECT THE

INLET TUBE TO THE CARBURETTOR, FIXING IT WITH THE

APPROPRIATE METALLIC CLAMP.

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