•
Remove the valves.
Valve check
CAUTION
REPLACE THE VALVES ONE AT A TIME. DO NOT MIX THE COMPONENTS. EACH VALVE MUST
BE INSERTED INTO ITS SEAT, WHICH IS MARKED PRIOR TO REMOVAL.
VALVE STEM DEVIATION
Lift up the valve approx. 10 mm (0.39 in) from its
seat.
Measure the valve stem deviation in two perpen-
dicular directions and position the dial gauge as
shown in the figure.
Characteristic
Valve stem distortion
0.25 mm (0.0098 in)
If the valve stem, when measured with a micro-
meter, is worn to its limit and the clearance ex-
ceeds the specified limit, replace the valve.
Recheck the clearance after replacing the valve.
Characteristic
Intake valve stem diameter
4.985 - 4.965 mm (0.1963 - 0.1954 in)
Exhaust valve stem diameter
4.975 - 4.955 mm (0.1959 - 0.1951 in)
Engine
Tuono V4 1100 Factory
ENG - 374
Summary of Contents for 2Q000504
Page 1: ...SERVICE STATION MANUAL 2Q000504 Tuono V4 1100 Factory ...
Page 4: ......
Page 6: ...INDEX OF TOPICS PRE DELIVERY PRE DE ...
Page 12: ...INDEX OF TOPICS CHARACTERISTICS CHAR ...
Page 55: ...INDEX OF TOPICS SPECIAL TOOLS S TOOLS ...
Page 63: ...INDEX OF TOPICS MAINTENANCE MAIN ...
Page 103: ...INDEX OF TOPICS ELECTRICAL SYSTEM ELE SYS ...
Page 270: ...INDEX OF TOPICS ENGINE FROM VEHICLE ENG VE ...
Page 299: ...INDEX OF TOPICS ENGINE ENG ...
Page 415: ...INDEX OF TOPICS POWER SUPPLY P SUPP ...
Page 425: ...INDEX OF TOPICS SUSPENSIONS SUSP ...
Page 463: ...INDEX OF TOPICS CHASSIS CHAS ...
Page 508: ...INDEX OF TOPICS BRAKING SYSTEM BRAK SYS ...
Page 548: ...INDEX OF TOPICS COOLING SYSTEM COOL SYS ...
Page 561: ...INDEX OF TOPICS BODYWORK BODYW ...