Inspection And Adjustment - Honda CB160 Shop Manual

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Fig. 6. 1 Maintenance Shop
Fig. 6. 2 Maintenance Shop
fig. 6. 3
Tools required for checking engine compression
Fig. 6. 4 Checking Compression
VI INSPECTION
AND ADJUSTMENT
6. I
Maintenance
Thus far, maintenance and adjustment have been
defined as related to an individual system or unit.
However, inspection, repair and adjustment are some·
times performed to many systems and parts, collectively
and periodically. This is for the sake of convenience and
is also referred to as preventive maintenance. Main·
tenance is performed on each group in sequence for
the purpose of keeping the vehicle in good operating
condition at all times. (Refer to Fig.
6. I
and 6.
2)
A. Engine adjustment
Engine adiustment is to guarantee normal engine
operation. It is a corrective operation and different
from mere inspection. Engine operation is dependent
upon the function of the following systems. By
inspecting and adjusting in the below sequence, normal
operation of the engine is guaranteed.
Compression system
Ignition system
Intake system
Combustion system
Fuel system
Inspection should be performed on the above five
systems. When completed, normal engine operation
should be regained. Corrective action will be ex·
plained below.
1. Compression
If
the compression is ·faulty, the engine output
decreases. If compression leaks exist, the engine
trouble is generated in operation or the engine stalls
at low speeds.
a. Tools required for checking engine compression.
(Refer to Fig.
6. 3)
b. Disconnect the spark plug leads and remove
the plugs with a socket wrench.
c. Place the tip of the compression gauge in the
cylinder head opening and press firmly into place
so that the seal is tight.
d. Open the throttle and choke wide, and operate
the kick starter several times. The pedal should
be kicked vigorously. (Refer to Fig.
6. 4)