MAINTENANCE
ADJUSTMENTS
STOP THE ENGINE BEFORE
INSPECTING AND REPAIRING IT.
CAUTION
■
AIR FILTER
A clogged air filter will reduce the engine performance.
Check periodically and clean the air filter element in warm,
soapy water as required. Dry completely before installing.
When the element is broken or shrunk, replace with a new
one.
Operation with a deformed or broken air filter will give
severe damage to the engine inner parts.
■
FUEL TANK CAP & FUEL STRAINER
When the engine seems to run short of fuel supply, check
the air vent hole of the fuel tank cap and the fuel strainer for
blockage.
■
SPARK PLUG
Starting failure and mis-firing are often caused by a fouled
spark plug. Periodically clean the spark plug and check that
the spark gap is within the correct range. For a replacement
plug, use the specified type or the equivalents.
■
STORAGE
Old fuel left in the carburetor may cause starting failure.
Before storing the unit, empty the fuel tank and drain the
carburetor.
■
THROTTLE WIRE
The normal play of the throttle wire is 1 or 2 mm. When the
play is so large or too small, loosen the lock nut and
reposition the wire receive on the carburetor side.
■
IDLING SPEED
Check the idling engine speed.
In case engine dies out or run too fast at idling engine
speed, correct it by turning the idle adjustment screw. Idling
speed is up by turning clockwise and down by turning
counter-clockwise.
调 节
■节流线
节流线的游隙在1_2mm之间较合适。游隙过大或过小时，请松动锁
紧螺母调整化油器侧线接头的位置。
■怠速转速
检查发动机怠速速度。
如发动机在怠速速度上停止或运转太快，旋转怠速调节螺丝进行纠
正。顺时针方向旋转加快怠速，反时针方向旋转降低怠速。
维修保养，务必在停止发动机后进行。
■空气滤清器
如空气滤清器阻塞，则会降低发动机性能。请定期进行检查，如有
必要，用放入洗涤剂的温水进行清洗滤芯，使其完全干透再进行安
装。如滤芯破损或收缩时，请用新品进行更换。
当空气滤清器处于变形破损状态而持续运行时，会使发动机内部造
成异常磨损。
■燃料盖、燃油滤清器
在发动机运行中，当出现燃油耗尽现象（回转发生变化、发动机失
速）时，请检查燃料盖的通气孔或燃油滤清器是否阻塞。
■火花塞
如火花塞有污垢而劣化时，则发动机难于起动，会发生误点火或不
点火。请定期检查火花塞，检查电极之间的间隙是否适当。在交换
火花塞时，请使用指定品牌或与之相当的火花塞。
■长期保管时
在化油器剩余燃油的状态下，如进行长期放置则会引起发动机起动
不良。在保管之前请排空燃油箱，排空化油器中的燃油。
注 意
维修保养
