Homelite F2020, UT70121 Idle Speed Screw Mixture Needle, Troubleshooting, Problem, Possible Cause

TROUBLESHOOTING

IF THESE SOLUTIONS DO NOT SOLVE THE PROBLEM, CONTACT YOUR AUTHORISED SERVICE DEALER.

PROBLEM		POSSIBLE CAUSE		SOLUTION
Grass wraps round drive	1.	Cutting tall grass at	1.	Cut tall grass from the top down.
shaft housing and string		ground level.
head:	2.	Operating trimmer at	2.	Operate trimmer at full throttle.
		part throttle.
Spool retainer hard to	Screw threads dirty or damaged.		Clean threads and lubricate with grease - if no improve-
turn:			ment, replace spool retainer.
Oil drips from silencer:	1.	Operating trimmer at	1.	Operate trimmer at full throttle.
		part throttle.
	2.	Check oil/fuel mixture.	2.	Use fresh fuel and the correct 2-cycle oil mix.
	3.	Air filter dirty.	3.	Clean air filter. Refer to “Replacing and Cleaning Air
	4.	Carburettor requires		Filter” earlier in this manual.
			4.	Turn mixture needle clockwise 1/16 turn.
		adjustment.		See Figure 18.

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 Trouble Shoot- ing Section recommends a anticlockwise needle adjust- ment 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

MIXTURE

NEEDLE

Fig. 18

16