Cycles Guide

14
Operator Manual
R80V, R100 ENGINES
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2. Disconnect the spark plug cap, and clean any debris from
around the spark plug area.
3. Remove spark plug and replace if any of the following
occur; pitted electrodes, burned electrodes, cracked
porcelain, or deposits around electrodes.
4. After analysis, seat spark plug and tighten with spark plug
wrench to compress the sealing washer. SEE FIGURE 12.
• Reinstall original spark plug, tighten additional 1/2 turn.
• Installing new spark plug, adjust spark plug gap to 0.030”
(0.7-0.8 mm) and tighten additional 1/8 – 1/4 turn.
NOTE: Loose spark plug may overheat and damage
engine. Over tightened spark plug may damage threads
in the cylinder head.
SPARK PLUG MAINTENANCE
Spark plug should be removed, cleaned and gap adjusted after
approximately fty hours of operating time.
NOTE: A sand blaster should not be used to clean spark plugs.
Microscopic particles remaining in the plug may score the
engine cylinder during operation. Use solvent and a wire brush
to clean the plug and compressed air to blow out completely.
CARBURETOR
Never tamper with factory setting of the carburetor.
FUEL FILTER
Clean Or Replace Fuel Filter as follows:
1. Disconnect spark plug wire from spark plug. Remove
spark plug and protect spark plug hole from debris.
SEE FIGURE 12.
2. Drain fuel from tank before attempting to clean/replace
lter.
3. Remove two nuts holding muer to the engine and
remove muer.
4. Remove three bolts holding fuel tank assembly to the
engine.
5. Gently lift tank o of the engine and disconnect the hose
clamp. SEE FIGURES 13 AND 14.
6. Remove fuel tank lter by using proper size socket to turn
lter counter clockwise. SEE FIGURE 15
7. Filter may be washed with kerosene or similar solvent.
FIGURE 12
WARNING
FUEL IS HIGHLY FLAMMABLE AND MUST BE HANDLED
WITH CARE. NEVER FILL OR DRAIN THE FUEL TANK WHEN
THE ENGINE IS HOT OR RUNNING. ALWAYS MOVE
OUTDOORS TO FILL OR DRAIN FUEL FROM THE TANK.
SERIOUS INJURY OR DEATH CAN OCCUR.
DO NOT REMOVE FUEL WHILE SMOKING, NEAR OPEN
FLAME, OR OTHER POTENTIAL HAZARDS.
FUEL IS TOXIC. DO NOT SIPHON FUEL BY MOUTH.
DO NOT STORE ENGINE INSIDE A BUILDING WITH FUEL IN
THE TANK. POTENTIAL SPARKS MAY BE PRESENT CAUSING
IGNITION OF FUEL AND FUEL VAPORS.
FAILURE TO FOLLOW SAFETY INSTRUCTIONS CAN CAUSE
SERIOUS INJURY OR DEATH.
DO NOT REMOVE FUEL WHILE SMOKING, NEAR OPEN
FLAME, OR OTHER POTENTIAL HAZARDS.
WARNING
IMPROPER MAINTENANCE, OR FAILURE TO CORRECT A
PROBLEM BEFORE OPERATION CAN CAUSE A
MALFUNCTION. ALWAYS FOLLOW THE INSPECTION AND
MAINTENANCE RECOMMENDATIONS AND SCHEDULES
INCLUDED WITH THIS OPERATOR’S MANUAL.
CHECK ENGINE REGULARLY FOR LOOSE NUTS AND BOLTS.
KEEP THESE ITEMS TIGHTENED.
TEMPERATURE OF MUFFLER AND NEARBY AREAS MAY
EXCEED 150 °F (65 °C). AVOID THESE AREAS.