Fuel

F7

Use

F8

F10

F11

F12

WARNING

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.

Recommended mixing ratio:

25 : 1 Mix Chart

 

 

 

 

Condition

Gasoline : Oil

 

Gasoline (liters)

1

2

3

4

5

Up to 20 hours use

20 : 1

 

2-cycle oil (ml.)

40

80

120

160

200

After 20 hours use

25 : 1

 

 

 

 

 

 

 

NOTE

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.

STARTING THE ENGINE

WARNING

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.

STOPPING ENGINE

1.Release the throttle lever .

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

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.

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)

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Zenoah YM415FW manual Fuel Use, Starting the Engine, Stopping Engine, Adjusting Throttle Cable, Adjusting Idling Speed