EY35, EY40 - Small Engine Discount

3. FEATURES
Small in size, light in weight
The cylinder and crankcase are of a one-piece aluminum diecast structure, which is light in weight. The dimensions are
reduced as much as possible for easy mounting.
Quiet operation with low level of vibration
Intake and exhaust noises are reduced by use of a newly designed muffler having glass wool and a cyclone cleaner. Ma-
chine noise is reduced by selection of a suitable cam shaft profile and optimum clearances for inner parts. All ths adds
up to a quiet engine. Vibration is also reduced to a low level by weight reduction of reciprocating parts, and selection
of a timing balancer and optimum balance factor.
Easy to start
These engines can easily be started because they employ an automatic decompression device and a newly designed re-
coil starter.
Wide range of adaptability
These models are available in various types of output shafts and also a type (Type B) with a built-in 1 /2 reduction gear
for application to various kinds of machines. The engines have two oil drain ports, and theirecoil starter can be pulled
in any desired direction. Various optional parts are also available. All these combine to increase adaptability to machines.
Durable, reliable and safe
A liner of special cast iron, hard-chrome-plate piston rings, forged rod, etc. are used to make these engines as reliable
and durable as the preceding models of the EY Series. Safety devices are also incorporated to assured added safety.
4. GENERAL DESCRIPTION of ENGINE CONSTRUCTION
4-1 CYLINDER, CRANKCASE
The cylinder and crankcase are
single piece aluminum die
casting. The cylinder liner, made of special cast iron, is built
into the aluminum casting. The intake and exhaust ports are
located on one side of the cylinder, and are also inserted in-
to the casing.
The crankcase is separable on the output shaft side, where
the main bearing cover is attached to it. (See Fig. 1 .)
Fig. 1
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