Spark Plugs - Honda GL1800 2004 Owner's Manual

Spark Plug Recommendation
standard spark
plug
for cold climate
(below 5°C, 41°F)
for extended high
speed riding
Use only the recommended type of spark plugs in the recommended heat range.
Using spark plugs with an improper heat range can cause engine damage.
Spark Plug Replacement & Inspection
Refer to Saf ety Precautions
1. Remove the left and right cylinder head side cover (page
2. Clean any dirt from around the spark plug bases.
3. Disconnect the spark plug caps. Take care to avoid damaging the spark plug
wire when disconnecting the caps.
4. Using the spark plug wrench provided in the tool kit, remove the spark plugs.
BKR6E-11 (NGK)
BKR5E-11 (NGK)
BKR7E-11 (NGK)
on page 106 .
spark plug wrench

Spark Plugs

or K20PR-U11 (DENSO)
or K16PR-U11 (DENSO)
or K22PR-U11 (DENSO)
121 ).
spark plug cap
Servicing Your Honda
141