Fuel – Zenoah YM415FW User Manual

Page 4

Use

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STARTING THE ENGINE

Take care that the cutting head will start rotating upon the engine starts.

1. Open the fuel tank cock. (F8-1-b)

2. Move the choke lever to the closed position. (F8-2-a)

3. Set the engine switch (F10-a) to the " I " position. Set the throttle lever to the start

position. (F10, 1-2-3)

4. Place the unit on a flat, firm place. Keep the cutting head clear of everything around it.

5. While holding the unit firmly, pull out the starter rope quickly. (F11)

6. After the engine has started, open the choke gradually and allow the engine to warm

up. Pull the throttle lever to unlock it.

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STOPPING ENGINE

1. Release the throttle lever .

2. Move the engine switch to the “ O ” position.

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ADJUSTING THROTTLE CABLE

• The normal play is 1 or 2mm when measured at the carburetor side end. Readjust with

the cable adjuster (F12-1) as required.

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ADJUSTING IDLING SPEED

• It is normal that the engine keeps running without the blade rotation, when the throttle

lever is released. When the engine speed is too high or too slow, readjust the idle set
screw. (F12-2)

WARNING

F10

F12

F11

Fuel

• Keep open flames away from the area where fuel is handled or stored.

• Mix and store fuel only in an approved gasoline container.

Mix a regular grade gasoline (leaded or unleaded, alcohol-free) and a quality-proven
motor oil for air cooled 2-cycle gasoline engine use.

WARNING

25 : 1 Mix Chart
Gasoline (liters)

2-cycle oil (ml.)

120

160

200

Recommended mixing ratio:

Condition

Gasoline : Oil

Up to 20 hours use

20 : 1

After 20 hours use

25 : 1

Most engine troubles are caused, directly or indirectly, by the fuel used on the
machine. Take special care not to mix a motor oil for 4-cycle engine use.

NOTE