GAS GAS EC250E 2012, Owner'S Manual

Page: 39 / 81

Owner’s manual
-39-
Maintenance
1.-CLUTCH
The clutch lever can be adjusted for your comfort.
To adjust it, act as described:
• With the wheel (1) adjust the distance between the lever and the handle-
bar.
The assembly is designed so that the lever posi ti on can’t change when you ride.
DANGER
• This model uses mineral oil GRO Global Ultra-5 for the clutch hydraulic
circuit.
• Don’t re fi ll the tank (2) with brake fl uid.
2.-CLUTCH DISCS
For this check, adjustment, or change, you must go to your GAS GAS o ffi cial
service.
3.-THROTTLE CABLE
• Check that the thro tt le (1) rotates smoothly.
• Check that the thro tt le has a dead play of 2~3 mm.
• If the dead play is not correct, loose the lock nut (2) at the end of the
thro tt le cable, rotate de adjuster (3) un ti l its correct.
• Tighten the lock nut.
• If the dead play cannot be established by adjus ti ng the cable, remove the
end cable protector in the carburetor, adjust with a tensor, ti ghten lock nut
and reinstall protector.
2
1
1
3
2
4.-SPARK PLUG
The standard spark plug (Denso W24ESR-U o NGK BR8EG) must be ti ghtened
to 25 Nm.
The spark plug must be removed periodically to check electrodes gap (0,7~0,8
mm). If the spark plug contains oil or cinder, clean with a wire brush or similar.
Measure the electrodes gap with a gauge and adjust, if it is incorrect, by bending
the outer electrode. If spark plug electrodes are rusty, damaged, or isola ti on is
broken, change spark plug.
NOTE: Inspect every 10 hours and replace every 20 hours.
To fi nd the correct temperature which must operate the spark plug, remove it
and examine ceramic isolator around the electrode. If ceramic has a light brown
color, spark plug temperature harmonizes with the engine. If ceramic is white,
spark plug must be replaced by a colder one. If it is black must be replaced by a
ho tt er one.
NOTE: If the engine performance drops, replace the spark plug to regain engine
performance.