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
Summary of Contents for BOXER 427 Operators
Page 2: ...6 7 06 Fifth Proof...
Page 6: ...6 7 06 Fifth Proof iv Mertz Manufacturing LLC P O Box 150 Ponca City OK 74602 Affix Stamp Here...
Page 8: ...6 7 06 Fifth Proof vi...
Page 18: ...6 7 06 Fifth Proof 1 8 Safety Precautions...
Page 31: ...6 7 06 Fifth Proof 3 5 Pre Start Inspection and Operation Figure 3 4 Lubrication Points 2128...
Page 52: ...6 7 06 Fifth Proof 3 26 Pre Start Inspection and Operation...
Page 74: ...6 7 06 Fifth Proof 4 22 Routine Service and Maintenance...
Page 85: ...6 7 06 Fifth Proof...