KEEWAY ARN150 User Manual

40
H ．
．．
． M E A S U R E A I R P R E S S U R E I N C Y L I N D E R
STEP ONE：
：：
：
1． Start engine until temperature reaches
its requirement.；
2． Remove spark plug and join pressure
gauge.；
3． Inspect the following switchs：
(a) Fuel switch is in “OFF”
position.；
(b) Ignition switch is in “OFF”
position；
4． Play up throttle completely,
start engine for several times
(6-8 times)）；
5． Note reading, and do the
6． above steps three times and calculate
their average value as actual
compression pressure, which should
be 11±1Kg/cm
2
STEP 2：
：：
：
When air pressure in cylinder is below 12Kg/cm
2,
，install spark plug, restart and warm up engine,
remove spark plug and drop several drops of oil in combustion chamber, messure it againe following step
ONE with manometer；
● If the pressure in cylinder adds, inspect:
a． If cylinder is abraded；
b． If piston/ring is abraded；
c． If there is scratch or block for cylinder/piston；
d． If piston is blocked completely in piston groove.
●if the pressure in cylinder doesnot increase, inspect：
a． If valve clearance is correct；
b． If cylinder head scres is fastened too tight or loosened；
c． If valve holder is abraded；
d． If valve is curved；
e． If valve timing is correct；
f． If cylinder head gasket is abraded.
STEP 3：
：：
：
When the pressure in cylinder is over 12Kg/cm
2
，clear deposited carbon in cylinder head, pistion, combustion
chamber, at the same time inspect exhaust port.

KEEWAY ARN150 Specifications

General

Brand	KEEWAY
Model	ARN150
Category	Scooter
Language	English