Section 04 ENGINE
Subsection 05 (COMPRESSION TEST AND ENGINE DIMENSION MEASUREMENT)
MMR2000_120_04_05A.FM 04-05-1
COMPRESSION TEST AND ENGINE
DIMENSION MEASUREMENT 0
COMPRESSION TEST
Set ignition and emergency cut-out switches to
the OFF position.
Disconnect spark plug cap, then remove spark
plug.
Plug compression testing gauge into spark plug
hole.
Hold compression testing gauge in one hand then
pull starter handle 3 or 4 times with the other
hand, as shown in the next photo.
PULL STARTER HANDLE 3 OR 4 TIMES
Engine compression must be as described in the
following table. If not, see subsection 04-03
VALVE ADJUSTMENT or subsection 04-04 DISAS-
SEMBLY/ASSEMBLY.
STANDARD SERVICE LIMIT
110 - 120 PSI 85 PSI
A31C1KA
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