Poor performance
POOR PERFORMANCE - POOR COMPRESSION - GAS LEAKS
Possible Cause Operation
Loosening of screws and nuts Relock nuts and bolts of the specific elements of the engine
(carburettor, cylinder head, silencer attachment), observing the
values of related torques.
LOW POWER
Possible Cause Operation
Timing incorrect Carry out the checks required for the Ignition Timing Con-
trol.
Head, cylinder or spark plug not fitted correctly Correct the fitting and the locking.
Current leakage of the ignition system. Locate the leakage and act accordingly.
Excessive incrustation on the lights of the cylinder. Descale.
Silencer blocked Descale with iron wire bent into a hook or with compressed air
introduced into the cylinder nozzle fixed to the cylinder prior
external exhaust pipe heating.
Starting difficulties
STARTING PROBLEMS
Possible Cause
Operation
Clogged jets, carburettor body or cock Remove and clean in petrol;
Dry with a compressed air jet.
Air filter clogged or dirty Replace.
Inefficient spark plug Clean and adjust the electrodes or replace.
Discharged battery The battery is the electrical device in the system that requires
the most frequent inspections and thorough maintenance. Fre-
quently check that the fluid level fully covers the plates; if not,
restore the level by adding distilled water (never use natural
water, even if it is drinking water) and check fluid density at the
same time, as described in the "Battery" section.
If the vehicle is not used for some time (1 month or longer) the
battery needs to be recharged periodically. The battery runs
down completely in the course of three months. When the bat-
tery is being placed on the vehicle, make sure that the connec-
tions are not misplaced, keeping in mind that the black ground
cable with the silencer attached to the frame is to be connected
to the negative terminal whereas, the other cable, must be con-
nected to the terminal marked +.
Inefficient dynamotor Identify defects and make any revisions as stated in the section
"Disassembly and reassembly of dynamo motor".
Rapid inefficiency of the regulator and battery Check that the connections to the battery have not been re-
versed.
Gearbox
TRANSMISSION NOISE
Possible Cause
Operation
Excessive clearance between the gears of the transmission Review and replace the worn components.
Insufficient oil in the differential transmission Restore the oil level or replace.
Bearings of the gear shaft are noisy Replace.
OIL LOSS FROM THE DIFFERENTIAL UNIT
Possible Cause
Operation
Overfilling of the differential gear oil Bring back to level.
Troubleshooting APE TM Benzina
TROUBL - 44
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