This section makes it possible to find what solutions to apply when troubleshooting.
For each breakdown, a list of the possible causes and respective interventions is given.
Engine
Excessive oil consumption/Exhaust smoke
EXCESSIVE CONSUMPTION
Possible Cause
Operation
Wrong valve adjustment
Adjust the valve clearance properly
Overheated valves
Remove the head and the valves, grind or replace
the valves
Misshapen/worn valve seats
Replace the head assembly
Worn cylinder, Worn or broken piston rings
Replace the piston cylinder assembly or piston
rings
Worn or broken piston rings or piston rings that
have not been fitted properly
Replace the piston cylinder unit or just the piston
rings
Oil leaks from the couplings or from the gaskets Check and replace the gaskets or restore the cou-
pling seal
Worn valve oil guard
Replace the valve oil guard
Worn valve guides
Check and replace the head unit if required
Insufficient lubrication pressure
POOR LUBRICATION PRESSURE
Possible Cause
Operation
By-Pass remains open
Check the By-Pass and replace if required. Care-
fully clean the By-Pass area.
Oil pump with excessive clearance
Perform the dimensional checks on the oil pump
components
Oil filter too dirty
Replace the cartridge filter
Oil level too low
Restore the level using the recommended oil type
(Selenia HI Scooter 4 Tech)
Transmission and brakes
Clutch grabbing or performing inadequately
IRREGULAR CLUTCH PERFORMANCE OR SLIPPAGE
Possible Cause
Operation
Faulty clutch
Check that there is no grease on the masses.
Check that the clutch mass contact surface with
the casing is mainly in the centre with equivalent
characteristics on the three masses. Check that
the clutch casing is not scored or worn in an anom-
alous way
Troubleshooting
Vespa GTV 250 i.e.
TROUBL - 2
Содержание 633844 IT
Страница 4: ......
Страница 6: ......
Страница 7: ...INDEX OF TOPICS CHARACTERISTICS CHAR ...
Страница 21: ...INDEX OF TOPICS TOOLING TOOL ...
Страница 34: ...Tooling Vespa GTV 250 i e TOOL 14 ...
Страница 35: ...INDEX OF TOPICS MAINTENANCE MAIN ...
Страница 48: ...Maintenance Vespa GTV 250 i e MAIN 14 ...
Страница 49: ...INDEX OF TOPICS TROUBLESHOOTING TROUBL ...
Страница 53: ...INDEX OF TOPICS ELECTRICAL SYSTEM ELE SYS ...
Страница 58: ...1 Saddle opening switch 2 Wirings 3 Insert in clamp Electrical system Vespa GTV 250 i e ELE SYS 6 ...
Страница 86: ...Electrical system Vespa GTV 250 i e ELE SYS 34 ...
Страница 87: ...INDEX OF TOPICS ENGINE FROM VEHICLE ENG VE ...
Страница 94: ...Engine from vehicle Vespa GTV 250 i e ENG VE 8 ...
Страница 95: ...INDEX OF TOPICS ENGINE ENG ...
Страница 152: ...Conceptual diagrams LUBRICATION CIRCUIT Engine Vespa GTV 250 i e ENG 58 ...
Страница 153: ...Vespa GTV 250 i e Engine ENG 59 ...
Страница 161: ...INDEX OF TOPICS INJECTION INJEC ...
Страница 178: ... REMOTE CONTROLS CONTROL UNIT FUSES ETC Injection Vespa GTV 250 i e INJEC 18 ...
Страница 182: ...Remove the filter from the pump support Injection Vespa GTV 250 i e INJEC 22 ...
Страница 194: ...Injection Vespa GTV 250 i e INJEC 34 ...
Страница 203: ...SIGNAL CONTROL Vespa GTV 250 i e Injection INJEC 43 ...
Страница 206: ...Injection Vespa GTV 250 i e INJEC 46 ...
Страница 207: ...INDEX OF TOPICS SUSPENSIONS SUSP ...
Страница 228: ...Suspensions Vespa GTV 250 i e SUSP 22 ...
Страница 229: ...INDEX OF TOPICS BRAKING SYSTEM BRAK SYS ...
Страница 245: ...INDEX OF TOPICS COOLING SYSTEM COOL SYS ...
Страница 248: ...Cooling system Vespa GTV 250 i e COOL SYS 4 ...
Страница 249: ...INDEX OF TOPICS CHASSIS CHAS ...
Страница 262: ...Chassis Vespa GTV 250 i e CHAS 14 ...
Страница 263: ...INDEX OF TOPICS PRE DELIVERY PRE DE ...
Страница 267: ...INDEX OF TOPICS TIME TIME ...
Страница 269: ...Crankshaft CRANKSHAFT Code Action Duration 1 001117 Crankshaft Replacement Vespa GTV 250 i e Time TIME 3 ...
Страница 299: ...Rear rack LUGGAGE RACK Code Action Duration 1 004008 Luggage rack Replacement Vespa GTV 250 i e Time TIME 33 ...
Страница 308: ...Stickers TRANSFERS Code Action Duration 1 004159 Plates Stickers Replace ment Time Vespa GTV 250 i e TIME 42 ...