Ryobi Outdoor RY70107A Idle Speed Screw “L” Lo Needle, Troubleshooting, Problem, Possible Cause

TROUBLESHOOTING

IFTHESE SOLUTIONS DO NOT SOLVETHE PROBLEM, CONTACTYOUR AUTHORISED SERVICE DEALER.

PROBLEM POSSIBLE CAUSE SOLUTION

String will not advance:	1. String welded to itself.
	2.	Not enough string on spool.
	3.	String worn too short.
	4.	String tangled on spool.
	5.	Engine speed too slow.

1.Lubricate with silicone spray.

2.Install more string. Refer to “String Replacement” earlier in this manual.

3.Pull strings while alternately pressing down on and releasing spool retainer.

4.Remove string from spool and rewind. Refer to “String Replacement” earlier in this manual.

5.Advance string at full throttle.

Grass wraps round shaft	1.	Cutting tall grass at ground
housing and string head:		level.
	2.	Operating trimmer at part
		throttle.

1.Cut tall grass from the top down.

2.Operate trimmer at full throttle.

Spool retainer hard to	Screw threads dirty or damaged.
turn:

Clean threads and lubricate with grease - if no improve- ment, replace spool retainer.

1.	Operating trimmer at part	1.	Operate trimmer at full throttle.
Oil drips from silencer:	throttle.
2.	Check oil/fuel mixture.	2.	Use fresh fuel and the correct 2-cycle oil mix.
3.	Air filter dirty.	3.	Clean per instruction in Maintenance Section.
4.	Carburettor requires adjust-	4.	Turn “H” needle clockwise 1/16 - 1/8 turn. See Figure 25.
	ment.

NOTE: The carburettor adjustment needle(s) are equipped with plastic cap(s) which prevent anticlockwise rotation from the original factory adjustment. If your unit exhibits specific performance problem(s) where the Troubleshooting Section recommends an anticlockwise needle adjustment and no adjustments have been made since original purchase, the unit should be taken to a factory-authorised service dealer for repair. In most cases, the needed adjustment is a simple task for the factory-trained service representative.

IDLE SPEED

SCREW

“L” LO

NEEDLE

“H” HIGH NEEDLE

Fig. 25

20