5.2 Spark Plug Maintenance
Spark plug inspection
The spark plug is an important engine
component and should be checked
periodically.
1. Remove the screws ① and then
remove the cover ②.
2. Remove the spark plug cap ③ and
access cap ④
3. Insert the tool ⑤ through the hole in
the outside of the cover.
4. Insert the handlebar ⑥ into the tool
⑤ and turn it counterclockwise to
remove the spark plug.
5. Check for discoloration. The carbon
porcelain insulator around the
center electrode of spark plug
should be a Medium-to-light tan
color.
6. Check the spark plug type and gap.
The spark plug gap should be
measured with a wire thickness
gauge and, if necessary, adjusted to
specification.
Spark Plug Type:
BPR6HS (NGK)
Spark Plug Gap:
0.6-0.7 mm (0.024-0.028 in)
Spark Plug Torque:
20.0 N·m (2.0kgf·m,14.8 Ibf·ft)
7. Install spark plug, spark plug cap,
cover and screws.
5-2