Ryobi

RYOBI MODEL NUMBER
PBC 3046YB 30cc
Experienced gardeners share their insights in answering this question :
You have to adjust the H needle on the carburetor. Quarter turns, when adjusting the high, the H needle, you have to hold the trigger in, throttle high… if it bogs, turn the h a little at a time and depress the trigger slowly until u hear the sweet spot…very simple fix.

How to Identify and Fix Common Gardening Problems ?

We provide a variety of viewpoints on how to identify and fix common gardening problems. Our sources include academic articles, blog posts, and personal essays from experienced gardeners :

A clogged carburetor is most commonly caused by leaving fuel in the string trimmer for a long period of time. Over time, some of the ingredients in the fuel may evaporate, leaving behind a thicker, stickier substance. This sticky fuel can clog up the carburetor and cause the engine to stall.
If your trimmer engine idles, but stalls on throttle, check the following parts: the gasket, primer bulb, fuel filter, air filter, fuel vent, fuel line, and carburetor. The repair and symptom guide will help you better identify the part needed to be replaced and how.
One reason why one of these trimmers may die at full throttle is that too much oil is in the gas, which causes poor combustion. Improper operation, including overuse of the choke, can also be responsible. Poor combustion produces carbon deposits that foul the spark plug and exhaust port, making the problem worse.
If the engine is not revving up and cuts out before you reach higher revs then you need to do the following checks: Fuel: Make sure it is fresh and correctly mixed (see `Starting Issues`). Air filter: Make sure it is clean and unclogged. Fuel cap: Make sure it`s hand-tight.
The most likely culprit is a dirty or clogged air filter. Issues with your fuel pump or fuel filter can also cause your engine to idle then die with any throttle. If you have an older car, it could also be a bad carburetor.
The air filter or exhaust port may be blocked. The trimmer may need lubrication and cooling fins or air passages may be blocked. A cordless trimmer`s battery or charger may be faulty.
Clogged air filters can cause RPMs to surge up and down. Simply remove the air filter cover by the tabs or screws that hold it in place and replace. This should regularly be done as preventative maintenance. The fuel filter keeps dirt from entering the carburetor.
Checking the Fuel Mix

The most common problem with a strimmer not starting is that there`s a problem with the fuel mix. Double check that you`ve used 40 parts fresh unleaded petrol to 1 part 2-stroke oil (40:1). Check the petrol you`ve used isn`t stale.

When the throttle body gets dirty, it has a direct effect on how smoothly the engine operates. Signs indicating a problem include rough idling, jumpy or sluggish acceleration, poor fuel economy, and stalling.
Over time, the spark arrestor can become clogged with soot. If the spark arrestor is clogged, the engine may stall or run roughly. To unclog the spark arrestor, remove it and clean it with a wire brush. You may also replace the spark arrestor.
When your trimmer starts and runs on choke, it could be because the check valve in the gas cap is clogged. Start the trimmer and gently unscrew the gas cap halfway off. Turn the choke off and assess. If the engine is still running, that means the gas cap may be the culprit.

Discover Relevant Questions and Answers for Your Specific Issue

the most relevant questions and answers related to your specific issue

Have 24 hp kaw. engine on Cub lawn mower. At idle, engine is erratic, revs, then slows, revs, then slows.
ANSWER : Hello. The usual cause of carb “hunting”, is a weak governer spring. Although it might look fine it may not be and I would replace it. Another possible cause is a float problem. Finally it could also be the fuel filter or a chunk of debris in the carburator.

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I am another owner of the 24 hp. briggs and stratten ELS that has blew a rod out the side. How can I get help replacing this motor that has been such a terrible problem
ANSWER :

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Battery the battery is dying and it will start but, after a few mins the engine starts to sputter then goes back to idle and eventually dies. could this just be the dead battery? is that the reason the engine dies?
ANSWER : Usually, if the battery is dying, it won’t start up again.
Usually, motorized vehicles only use the battery to start the engine, then the alternator contributes all the power for actual operation.
A dead alternator or battery shouldn’t ‘sputter’, they would just stop dead.

If the engine will start, run and then sputter…there is a fuel problem.
1. There may be a ‘cut-off’ in the fuel line which is in the off postion. It may look like a thin, flat wing-nut.
2. The gas may be contaminated with water residue if the gasoline has been sitting a long time. I believe you can get some water treatment to fix this without having to dump the fuel tank contents.
3. The fuel line is blocked with dirt somewhere, I would check the fuel filter and work backwards from there.

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Engineer starts, and stop – Mtd 22" Yard Machine Push Mower
ANSWER : Clean fuel system
lines
tank
carburetor main jet, float bowl
check cable/linkage adjustments

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Engine dies if i engage blades or take my foot off the brake
ANSWER : You likely need to replace the brake switch,the seat switch can also cause the same problem.Most likely problem is the seat switch,i would try that first.The pto or the reverse switch can cause a shut down but not until you try to mow,seat switch is the most suspect.

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Engine revs high then low then stops
ANSWER : Check the governor lever. it prob sticking or gone.

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Engine dies when clutch is released engine dies. jumped clutch switch and now when blades are engaged the engine dies. maybe a bad clutch switch? thanks, mike
ANSWER : I would think more than likly your seat switch is bad. Try disconnecting the switch, do not jump, and see if it works ok. If not, then jump the switch.
Depending how old the tractor is, the switch can work either way.
Good luck, let me know.
Regards,

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Honda 160cc mower engine starts and dies.
ANSWER : Your carbeurator is crudded up. Get a can of aerosol carbeurator cleaner at any auto parts store. Remove the air filter and spray two squirts of cleaner into the air intake. Start the engine and keep it running by squirting more carb. cleaner into the air intake. WIth a little patience you will clean your carb. and solve your problem.

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