Troubleshooting, Speed. See Figure | Ryobi RY30931, RY30570, RY30951

TROUBLESHOOTING

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

	PROBLEM	POSSIBLE CAUSE		SOLUTION

Engine will not start		1.	No spark.	1. Clean or replace spark plug. Reset spark plug
				gap. Refer to Spark Plug Replacement earlier
				in this manual.
		2.	No fuel.	2. Push primer bulb until bulb is full of fuel. If bulb
				does not fill, primary fuel delivery system is
				blocked. Contact a service dealer. If primer
				bulb fills, engine may be flooded, proceed to
				next item.
		3.	Engine is flooded.	3. Set the start lever to the START position. Squeeze
				the trigger and pull the rope repeatedly until the

engine starts and runs.

NOTE: Depending on the severity of the flooding, this may require numerous pulls of the rope.

Engine does not reach full speed and emits excessive smoke

1.Incorrect lubricant/fuel mixture.

2.Air filter screen is dirty.

3.Spark arrestor screen is dirty.

4.Spark plug fouled.

1.Use fresh fuel and the correct 2-cycle lubricant mix. (50:1).

2.Clean air filter screen. Refer to Cleaning Air Filter Screen earlier in this manual.

3.Contact a servicing dealer.

4.Clean or replace spark plug. Reset spark plug gap. Refer to Spark Plug Replacement earlier in this manual.

Engine starts, runs, and ac-	1. Idle speed screw on carburetor		1.	Turn idle speed screw clockwise to increase idle
celerates but will not idle		needs adjustment.		speed. See Figure 32.

String will not advance	1. String is welded to itself.		1.	Lubricate string with silicone spray.
	2.	Not enough string on spool.	2.	Install more string. Refer to the applicable string
				replacement section in this manual.
	3.	String is worn too short.	3.	Pull strings while alternately pressing down on
				and releasing spool retainer.
	4.	String is tangled on spool.	4.	Remove string from spool and rewind. Refer to
				the applicable string replacement section in this
	5.	Engine speed is too slow.		manual.
			5.	Advance string at full throttle.

IDLE SPEED

SCREW

AIR FILTER

COVER

Fig. 32

RY30931, RY30951, RY30971, RY30570 specifications

The Ryobi RY30570, RY30971, RY30951, and RY30931 are innovative outdoor power tools designed to enhance efficiency and performance in yard maintenance and landscaping tasks. Ryobi, a well-known brand in the power tool industry, aims to provide gardeners and homeowners with reliable equipment that combines cutting-edge technology and ergonomic design.

The Ryobi RY30570 is a powerful 2-cycle gas trimmer that excels in tackling overgrown grass and weeds. Featuring a 30cc engine, it delivers robust performance while maintaining a lightweight design for easy maneuverability. With its Straight Shaft, users can comfortably reach under bushes and around obstacles. The RY30570 also boasts an Easy Start technology, ensuring hassle-free ignition with a minimal pull effort.

On the other hand, the Ryobi RY30971 is a versatile brush cutter equipped with a 40V battery for eco-friendly performance. Its Brushless motor provides longer runtime and improved efficiency, allowing users to complete larger tasks without frequent recharges. The adjustable handle enhances comfort during extended use, while the 16-inch cutting width helps cover more ground quickly.

The RY30951 is Ryobi's innovative cordless string trimmer that operates on a 40V lithium-ion battery. This model is designed for noise-sensitive environments as it operates quietly and emits zero emissions. The Turbo Mode feature allows users to tackle even tougher weeds without experiencing a decrease in power. Additionally, the user-friendly design includes an adjustable telescoping shaft that caters to various operator heights.

Lastly, the Ryobi RY30931 is an advanced lawn mower that combines a powerful 40V brushless motor with advanced cutting technology. It features a 21-inch deck that provides a wide cutting path, offering swift mowing capabilities for larger lawns. Users will appreciate the 5-position height adjustment, allowing for personalized cutting preferences. The mower's foldable handles make storage easy, and the digital control panel monitors battery life and performance.

Overall, the Ryobi RY30570, RY30971, RY30951, and RY30931 models reflect the brand's commitment to quality and innovation. With features like easy starting mechanisms, battery efficiency, user-friendly designs, and eco-conscious operation, these tools are perfect for homeowners and landscape professionals alike, making yard tasks more manageable and efficient.

Ryobi RY30931 Troubleshooting, Gap. Refer to Spark Plug Replacement earlier, Speed. See Figure

Models: RY30931 RY30951 RY30971 RY30570