Cylinder Compression Test - Honda BF135A Manual

BF135A•BF150A

• CYLINDER COMPRESSION TEST

1) Move the remote control lever to the "N" (Neutral) position.
2) Remove the clip of the emergency stop switch.
3) Remove the engine cover and disconnect the fuel injector
connectors of each cylinder.
4) Disconnect the ignition coil connector of each cylinder and
remove the spark plugs.
5) Disconnect the throttle control cable from the throttle arm.
6) Install a compression gauge in the No. 1 plug hole.
7) Set the throttle in the full throttle position by pulling the throt-
tle arm against the full throttle stopper with hand as shown.
8) Set the ignition switch in the "START" position and turn the
starter motor. Measure the cylinder compression.
9) Check the compression on all cylinders.
Cylinder 1,352 - 1,728 kPa (15.6 - 17.6 kgf/cm
compression 222 - 250 psi) at 200 min
THROTTLE CONTROL CABLE
THROTTLE ARM
2 ,
-1 (rpm)
THROTTLE ARM
COMPRESSION GAUGE
(Commercially available)
2-15