Honda GX 690RH TXF7 Manual page 38

SPARK PLUG REPLACEMENT
If the engine has been running, the engine will be
very hot.
Allow it to cool before proceeding.
Remove the spark plug cap, and then remove the spark
plug using a spark plug wrench (page 3-6).
Verify the new spark plug gap is correct (page 3-6).
Install a new spark plug finger-tight to seat the washer,
and then tighten 1/2 turn with a spark plug wrench.
SPARK PLUG: ZFR5F (NGK)
A loose spark plug can become very hot and can
damage the engine. Overtightening can damage the
threads in the cylinder block.
Install the spark plug cap securely.
SPARK ARRESTER CLEANING
The muffler becomes very hot during operation and
remains hot for a while after stopping the engine.
Be careful not to touch the muffler while it is hot. Al-
low it to cool before proceeding.
Remove the flange bolts (1) and muffler protector (2)
(side mount type only).
Remove the tapping screw/s (3) and spark arrester (4).
HIGH MOUNT TYPE:
(3)
SIDE MOUNT TYPE:
(4)
(3)
MAINTENANCE
(4)
(1)
(2)
3-7