CF MOTO CF125T-19 2003, Руководство по обслуживанию

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8-3
8 Cylinder cover Cylinder head Cylinder body valving system
8
Cylinder compression pressure
Note
Measuring must be done after the
engine is warmed up
Remove spark plug cap, spark plug.
Select proper compression pressure gauge; install it
to cylinder head spark plug.
Full throttle
Measure compression pressure of cylinder by using
electrical starting.
Note
Compression pressure gauge and its acces-
sories must be properly installed,there should
not be pressure leakage in the joint
Electrical starting will cause overflow of
battery. Do not run the starting motor for
over 5 seconds continuously.
Compression pressure:
700kPa(7kgf/cm2) @260r/min
In case the compression pressure is too high, check
the piston head and combustion chamber for car-
bon deposit.
In case the compression pressure is too low, add a
bit oil into the spark plug hole and measure again.
Compare the measured values, if the pressure goes
up, measure the cylinder, piston and piston ring. If
there is no change, check the cylinder head and
valves.
l Valve leakage
l Improper adjustment of valve clearance