Assemble the cylinderhead.

10 mrn flange nut . . . . . . . . . . 4 pcs.

Washer . . . . . . . . . . . . . . . . . 4 pcs.

NOTE: Install theintake andexhaust valves. On the intake side there i s a stem seal.

NOTE:Insert the push rod. (Exhaust is on the side of the gear case.) Pay attention to the valve facing, UP-

wardordownward,and direction of intake and ex- haust.

NOTE: Install the rocker arm to the cylinder.

It is advisable to insert the rocker shaft before clamp- ing the head.

(See Fig. 47 .)

NOTE: Clamp the head to the cylinder.

Apply "Three Bond #I215" to twopieces of the stud bolt (on the side of the rocker shaft) andupperand reverse surfaces of the washer, and thentighten the nuts.

[Tightening torque: 350 kg-cm]

. Tightening of the nuts is to be done in threerounds,

I. e.:

 

1s t round

100 kg-cm

2ndround

200 kg-crn

3rd round

330-350 kgcm

NOTE:Fasten tightly the plate(push rod sleeve).

6 mm nut . . . . . . . . . . . . . . . 4 pcs.

(See Fig. 48.)

15)Adjust the valve clearance.

NOTE: Turntheflywheelby hand to the compres- sion a t TDC (top dead center). At TDC the camshaft cranking pin stands vertically.

NOTE: Adjustthe valve clearance to anywherebe- tween 0.07 - 0.10 mm (both intake and exhaust),

when the engine is cold. (See Fig. 49.)

a

Fig. 47

I

DECOMPRESSiON \,

ADJUSTING SCREW

Fig. 49

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Subaru Robin Power Products DY41, DY35, DY30 manual T round
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DY41, DY30, DY35 specifications

Subaru Robin Power Products have built a solid reputation in the realm of portable engines and generators, particularly with their DY35, DY30, and DY41 models. These engines are extensively used for various applications, ranging from construction to agricultural equipment, owing to their reliability and efficiency.

The Subaru DY35 engine exemplifies performance with a displacement of 35cc. Its lightweight design ensures easy portability, while its robust construction provides durability in demanding environments. Featuring a two-stroke cycle, the DY35 offers a high power-to-weight ratio, making it ideal for handheld equipment and compact machinery. Key characteristics include its advanced electronic ignition system that promotes easy starting and reliable operation. The DY35 also boasts superior fuel efficiency, which translates to lower operational costs over time.

Moving on to the DY30, this engine is designed with versatility in mind. It has a slightly smaller displacement of 30cc, making it a great choice for various power tools and smaller machinery. The DY30 is known for its excellent torque delivery, which allows users to tackle challenging tasks without the need for frequent refueling. One of its standout features is the automatic lubrication system that keeps the engine running smoothly while minimizing wear and tear. This feature significantly extends the engine’s life, making it a favorite among users looking for long-term performance.

The DY41 takes a step up in power with a displacement of 41cc, making it suitable for heavier-duty applications. Designed for larger equipment, the DY41 is renowned for its high torque and robust construction. It also includes an innovative cooling system that effectively dissipates heat, ensuring optimal engine performance in prolonged usage scenarios. The DY41 is equipped with advanced vibration-dampening technology, which enhances user comfort and reduces fatigue during operation.

Each of these Subaru Robin engines incorporates fuel-efficient technologies that reduce emissions and comply with environmental regulations. They are built to withstand the rigors of demanding work environments while providing reliable power. With their distinct features and durable designs, the DY35, DY30, and DY41 engines continue to be sought-after choices for professionals and hobbyists alike, underscoring Subaru's commitment to innovation and quality in power products.
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