HONDA GSV190 - Manual (Page 7)

7
SPARK PLUG
Recommended Spark Plug: NGK BPR6ES
The recommended spark plug is the correct heat range for normal
engine operating temperatures.
NOTICE
Incorrect spark plugs can cause engine damage.
For good performance, the spark plug must be properly gapped and
free of deposits.
1. Disconnect the cap from
the spark plug, and
remove any dirt from the
spark plug area.
2. Use the proper size spark
plug wrench to remove the
spark plug.
3. Inspect the spark plug. Replace it if
damaged, badly fouled, if the
sealing washer is in poor condition,
or if the electrode is worn.
4. Measure the electrode gap with a
suitable gauge. The correct gap is
0.028 - 0.031 in (0.70 - 0.80 mm). If
adjustment is needed, correct the
gap by carefully bending the side
electrode.
5. Install the spark plug carefully, by
hand, to avoid cross-threading.
6. After the spark plug is seated, tighten with the proper size spark
plug wrench to compress the washer.
7. When installing a new spark plug, tighten 1/2 turn after the spark
plug seats to compress the washer.
8. When reinstalling the original spark plug, tighten 1/8 - 1/4 turn after
the spark plug seats to compress the washer.
NOTICE
Properly tighten the spark plug. A loose spark plug can become
very hot and can damage the engine. Overtightening the spark plug
can damage the threads in the cylinder head.
9. Attach the spark plug cap to the spark plug.
FLYWHEEL BRAKE INSPECTION
1. Remove the three flange
nuts from the recoil starter,
and remove the recoil
starter from the engine.
2. Remove the fuel tank from
the engine without
disconnecting the fuel
tube. If the fuel tank
contains fuel, keep it level
as you remove it and set it
beside the engine in a level
position.
3. Check the brake shoe
thickness. If it is less than
0.12 in (3 mm), take the
engine to your authorized
Honda servicing dealer.
4. Install the fuel tank and
recoil starter, and tighten
the three nuts securely.
SPARK ARRESTER (optional equipment)
In some areas, it is illegal to operate an engine without a USDA
(United States Department of Agriculture)-qualified spark arrester.
Check local laws and regulations. A USDA-qualified spark arrester is
available from an authorized Honda servicing dealer.
The spark arrester must be serviced every 100 hours to keep it
functioning as designed.
If the engine has been running, the muffler will be hot. Allow it to cool
before servicing the spark arrester.
Spark Arrester Removal
1. Remove the three 6 mm
bolts from the muffler
protector, and remove
the muffler protector.
2. Remove the two special
screws from the spark
arrester, and remove the
spark arrester from the
muffler.
Spark Arrester Cleaning & Inspection
1. Use a brush to remove carbon deposits
from the spark arrester screen. Be careful
not to damage the screen. Replace the
spark arrester if it has breaks or holes.
2. Install the spark arrester in the reverse
order of removal.
SPARK PLUG
WRENCH
0.028 ~ 0.031 in
(0.70 ~ 0.80 mm)
SEALING
WASHER
FLANGE NUTS (3)
FUEL TANK
FUEL
TUBE
RECOIL
STARTER
SPACER (3)
BRAKE SHOE
BRAKE SHOE
THICKNESS
SPARK ARRESTER
MUFFLER
PROTECTOR
6 mm BOLT (3)
SPECIAL
SCREW (2)
MUFFLER