Poor Performance; Difficult Starting - PIAGGIO Beverly Tourer 300 i.e. Service Station Manual

Troubleshooting
This section makes it possible to find what solutions to apply when troubleshooting.
For each failure, a list of the possible causes and pertaining operations is given.
Engine

Poor performance

Possible Cause
Fuel pump
Excess of scales in the combustion chamber
Incorrect timing or worn timing system elements
Silencer obstructed
Air filter blocked or dirty.
Oil level exceeds maximum
Lack of compression: parts, cylinder and valves worn
Drive belt worn
Inefficient automatic transmission
Clutch slipping
Overheated valves
Wrong valve adjustment
Valve seat distorted
Starting difficulties
Possible Cause
Rpm too low at start-up or engine and start-up system dam-
Incorrect valve sealing or valve adjustment
Engine flooded
Air filter blocked or dirty.
Faulty spark plug or incorrect ignition advance
Flat battery
Intake coupling cracked or clamps incorrectly tightened
Excessive oil consumption/Exhaust smoke
Possible Cause
Wrong valve adjustment
Overheated valves
TROUBL - 54
POOR PERFORMANCE

DIFFICULT STARTING

aged
EXCESSIVE CONSUMPTION
Beverly Tourer 300 i.e.
Operation
Check the injection load relay
Descale the cylinder, the piston, the head and the valves
Time the system again or replace the worn parts
Replace
Remove the sponge, wash with water and car shampoo, then
soak it in a mixture of 50% petrol and 50% specific oil. Press
with your hand without squeezing, allow it to drip dry and refit.
Check for causes and fill to reach the correct level
Replace the worn parts
Replace
Check the rollers, the pulley movement and make sure the
drive belt is in good conditions; replace the damaged parts and
lubricate the moveable driven pulley with specific grease.
Check the clutch system and/or the bell and replace if neces-
sary
Remove the head and the valves, grind or replace the valves
Adjust the valve clearance properly
Replace the head unit
Operation
Check the starter motor, the system and the torque limiter
Inspect the head and/or restore the correct clearance
Try starting-up with the throttle fully open. If the engine fails to
start, remove the spark plug, dry it and before refitting, make
the engine turn so as to expel the fuel excess taking care to
connect the cap to the spark plug, and this in turn to the ground.
If the fuel tank is empty, refuel and start up.
Remove the sponge, wash with water and car shampoo, then
soak it in a mixture of 50% petrol and 50% specific oil. Press
with your hand without squeezing, allow it to drip dry and refit.
Replace the spark plug or check the ignition circuit components
Check the charge of the battery, if there are any sulphur marks,
replace and use the new battery following the instructions
shown in the chapter
Replace the intake coupling and check the clamps are tight-
ened
Operation
Adjust the valve clearance properly
Remove the head and the valves, grind or replace the valves