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6-7-06 - Fifth Proof
5-5
Troubleshooting
• Faulty or misadjusted choke
or throttle controls.
• Adjust choke and/or throttle
control cables. See engine
manual.
• Loose wires or connections
that short the kill terminal of
ignition module to ground.
• Tighten connections. See
engine manual.
• Faulty cylinder head gasket. • See engine manual.
• Faulty carburetor. • See engine manual.
• Vacuum fuel pump
malfunction, or oil in vacuum
hose.
• See engine manual.
• Leaking/cracked vacuum
hose to fuel pump.
• Replace hose.
• Intake system leak. • See engine manual.
• Diode in wiring harness failed
in open circuit mode.
• See engine manual.
Engine Starts Hard • Auxiliary control lever is in
either Forward or Reverse
position.
• Move control lever to the
Neutral position.
• Dirt or water in the fuel
system.
• Drain fuel system and
replace with fresh, clean fuel.
• Clogged fuel line. • Clean or replace fuel lines.
• Loose or faulty wires or
connections.
• Tighten connections.
• Replace wires. See engine
manual.
• Faulty or misadjusted choke
or throttle controls.
• Adjust choke and/or throttle
control cables. See engine
manual.
• Faulty spark plugs. • Replace spark plugs.
• Low compression. • See engine manual.
• Weak spark. • See engine manual.
• Fuel pump malfunction
causing lack of fuel.
• See engine manual.
• Engine overheated-cooling/
air circulation restricted.
• Clean cooling fins and
remove any debris from
around engine.
• Quality of fuel. • Drain fuel system and
replace with fresh, clean fuel.
• Flywheel key sheared. • See engine manual.
• Intake system leak. • See engine manual.
Problem Possible Causes Corrective Action