340 & 440 Liquifire Snowmobiles Specifications

Factory specifications for the first-generation John Deere 340 and 440 Liquifire snowmobiles, as published in the John Deere operator's manual OM-M6673. These are the Kioritz-powered Liquifires (KEC 340/23ALC and KEC 440/23ALC engines, corresponding to the 1977 model year), not to be confused with the later 1980–1984 Kawasaki "Fireburst" generation. The two models share the same chassis, body, and running gear, differing mainly in engine displacement and final drive ratio. Use the quick links below to jump to a section.

Engine

Component	340 Liquifire	440 Liquifire
Manufacturer	John Deere (Kioritz)*	John Deere (Kioritz)*
Model	KEC 340/23ALC	KEC 440/23ALC
No. of Cylinders	2	2
Bore	58 mm	66 mm
Stroke	64 mm	64 mm
Displacement	339 cc	438 cc

Fuel System

Item	340 Liquifire	440 Liquifire
Carburetor Manufacturer	Mikuni (2 used)	Mikuni (2 used)
Carburetor Number	AM54242	AM54245
Tank Capacity	8 U.S. gal (30.3 L)	8 U.S. gal (30.3 L)
Fuel Mixing Ratio	See Fuel & Oil Mixtures below

Chassis & Body

Item	340 Liquifire	440 Liquifire
Tunnel & Pan	Aluminum	Aluminum
Hood	Fiberglass	Fiberglass
Windshield	Polycarbonate	Polycarbonate
Overall Length	107.0 in (271.8 cm)	107.0 in (271.8 cm)
Overall Width	39.0 in (99.1 cm)	39.0 in (99.1 cm)
Overall Height	41.5 in (105.4 cm)	41.5 in (105.4 cm)
Weight	444 lb (201.4 kg)	444 lb (201.4 kg)

Track & Suspension

Item	340 Liquifire	440 Liquifire
Suspension Type	Slide Suspension	Slide Suspension
Track Material	Rubber	Rubber
Track Width	15.5 in (39.4 cm)	15.5 in (39.4 cm)

Power Train

Item	340 Liquifire	440 Liquifire
Transmission Type	2-Sheave Variable	2-Sheave Variable
Primary (Manufacturer)	John Deere (Comet)**	John Deere (Comet)**
Secondary	John Deere	John Deere
Model	102C (Comet)	102C (Comet)
Final Drive Ratio (Standard)	1.86:1	1.67:1
Brake	Mechanical Disk	Mechanical Disk
Drive Belt	M66345	M66345

Electrical System

Applies to both the 340 and 440 Liquifire.

Spark Plug (Champion)	N-1 (AM54319)
Spark Plug Gap	See "Checking Plugs," manual pg. 13
Timing	0.096 in (2.44 mm) BTDC, engine running at idle
Lighting Coil Capacity	120 Watt
Headlight Bulb	AM53887
Stop / Taillight Bulb	AM52619
Speedometer Bulb	AM52847
Tachometer Bulb	AM52847
Coolant Temperature Gauge	AT22970

Fuel & Oil Mixtures

United States

Ratio	Oil	Leaded Fuel
40:1	1 pint (0.473 L)	5 gal (18.9 L)
50:1	1 pint (0.473 L)	6 gal (22.7 L)

Canada

Ratio	Oil	Leaded Fuel
40:1	1 U.S. pint (0.473 L)	4 Imperial gal (18.2 L)
40:1	1 Imperial pint (0.568 L)	5 Imperial gal (22.7 L)
50:1	1 U.S. pint (0.473 L)	5 Imperial gal (22.7 L)
50:1	1 Imperial pint (0.568 L)	6 Imperial gal (27.3 L)

A U.S. gallon contains 3.785 liters; a Canadian Imperial gallon contains 4.543 liters. Specifications subject to change without notice.

^* Engines manufactured for John Deere by Kioritz Corporation, Tokyo, Japan.
^** Primary drive manufactured for John Deere by Comet Industries, Richmond, Indiana.