G643(E) Service Manual Chapter 1. General Information 13
Engine Model and Engine Serial
Number
Engine
Model
Fuel Type
Emission
Regulation
G643E LP
EPA/CARB*
2007
Compliant
G643 LP
* EPA: Environmental Protection Agency
* CARB: California Air Resources Board
G643E Engine
• Comply with EPA 2007 Emission Regulation
• Electronic Control by ECM
• Certified LP System available
– Closed loop LP Carburetion system
• 3-way Catalytic Muffler is standard
G643 Engine
• Not comply with EPA 2007 Emission Regulation
• Electronic Control by ECM
• Standard LP System available
– Open loop LP Carburetion system
• Muffler is standard
Indication of Engine Model and Serial
Number
Engine Model Engine Serial Number
G643E/G643 30700001 to 39999999
Features and Benefits of G643E/G643 Engine
• Valve seat inserts
– Valve seat system
• SOHC valve system
• Timing chain system
• Distributor Ignition system
• Electronic control system by ECM (Engine control
module)
– Drive-by-wire system
– Higher efficiency and lower fuel consumption
– Min./Max. governor control
– Automatic engine protection from overheating
and/or low engine oil pressure
– Automatic transmission protection from
overheating (G643E Engine only)
– Engine diagnostics by service-tool software
– Forklift ground speed limit (optional)
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