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Ducati 750 Sport Owner's Manual Page 8

Ducati motorcycles owner's manual.
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2
IDLING ADJUSTMENT
THROTTLE
ADJUSTM ENT
Fig.3
Fig.
4
ADJUSTMENT DF
MINIMUM AIR INTAKE
Fig.
5
+-
Fuel
Petrol is gravity fed to the engine through two Amal carburettors wiJh air filters. The tank holds
17 Iitres (3.74 gallons) and has two three-position cocks: close-open-reserve. The reserve is
about 1.6 Iitres íO.35 gallons)
Lubrication
The engine is pressure lubricated by means of a gear pump driven by the crankshaft. This pump
takes the oil from the lowest point in the crankcase, through a filter and forces it through a
series of oilways to all parts of the engine requiring lubrication. The oil return is by gravity.
The sump capacity is about 4.5 Kg (1.10 gallons) and an oil filter with dipstick and sealing
gasket allows easy oil
level measurement.
The filer plug dipstick is marked with two notches to indicate lowest and highest permissible
levels and the level is checked by resting the plug on the filer.
The system is quite simple and requires no special maintenance other than topping up the oil
every 500 Km (300 miles) and changing the oil and cleaning the filter every 2,000 Km
(1,200 miles).
Cooling
The engine is air cooled by means of fins on both the cylinder barrel and cylinder head.
Ignition
Ignition is by battery and coil with 100 advance when the engine is stopped and 290 automatic
advance at over 1,200 r.p.m., a total of 380.
To time the ignition see the figure on page 6. The clearance between the platinum plated
contacts should be 0.3 to OAmm (0.0118" to 0.0157") and should be checked with a feeler
gauge.
The spark plugs are Lodge 3 H N or a similar model and are located on the left side of the
cylinder head.
When replacing the plugs make sure the plug is aligned correctly in the thread so as to avoid
cross threading. Screw the plug in lightly at first, then tighten it.

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