Fuel System Service Information; Fuel System Troubleshooting - Honda XLR200R Service Manual

SERVICE INFORMATION ...................•.........•..•• 5 - 1
TROUBLESHOOTING ........................................ 5
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1
AIR CLEANER CASE REMOVAL & INSTALLATION. 5 - 2
SERVICE INFORMATION
5. FUEL SYSTEM
CARBURETOR REMOVAL
&
INSTALLATION ..... 5 - 3
CARBURETOR DISASSEMBLy/ASSEMBLy ••..... 5 - 4
PILOT SCREW ADJUSTMENT ......•........•.......... 5 - 6
Because gasoline is highly flammable, all flames and heat sources are not allowed in the work area. These include not only
open flames but electrical sparks as well. Compressed gasoline is liable. to explode. The work area must therefore be well-
ventilated.
Do not bend or twist the control cables. ·Damaged control cable will not operate ,smoothly and may stick or bind.
Pay clo'se attention to O-ring locations.
Wh~n
reassembling, replace with new ones.
aetore disassembly, loosen the float chamber drain screw, and remov.e excess gasoline from the carburetor into pan.
After removing the carburetor, prevent dirt and other foreign objects from getting into engine intake by covering the port
with either a rag or tape.
When storing for long periods; of one month or longer always remove the gasoline from the carburetor float chambe'r. The
gasoline in the float chamber may deteriorate, clogging the slow"jet with gum-like substance which results in idling defects.
TROUBLESHOOTING
Will Not Start
No fuel in tank
No fuel 'in 'carburetor
Too much fuel getting to cylinder
No sparks from spark plug
Clogged air cleaner
Suction secondary air
Fuel deterioration
Clogged slow jet
Defective choke valve
Throttle cable defect
Unstable Idling, Stops Immediately After Starting
Clogged slow jet
Ignition system malfunction
Fuel deterioration
Suction se,condary air
Defective idling rpm adjustment
Defective adjustment of pilot screw
Flqat level misadjusted
Cylinder compression too low
Sich/lean air mixture
Restricted fuel line
Lean Air Mixture
Clogged carb main
Float v.alve faulty
Float level too low
Clogged fuel distribution line
Fuel cap vent blocked
Clogged carburetor' air vent tube
Suction secondary air
Rich Air Mixture
Choke valve in ON position
Float valve faulty
Float level too high
Dirty air cleaner element
Backfire, Misfire During Accelerati9n
Defect in ignition
• Fuel mixture too lean
After Burn When Engine
Bra~e
• Lean mixture in- slow circuit
5-1