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Where can I get the limiter caps for the carburetor?

I have a Ryobi (RY10521) C4620 Chainsaw and it doesn't want to start up. It has lots of spark, the chain guard is pulled all the way back, and its getting plenty of fuel. I do believe its getting to much fuel. When I pull the pull the spark plugs it fully saturated. So do I adjust the L rpm jet but if so how do I adjust them? My H L rpms jets do not have the limiter caps. Should there be limiter adjusters caps on there but so that someone can adjust them? Since I dont have the caps, there are no red or yellow plastic caps to adjust, how do I adjust them? All that's there is a metal round nub with a notch that remains, no philip nor flat bladed screwdriver can be used.

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They sell special tools to adjust carbs yours may have a flat spot on it or splines all the way around them I never adjust with the plastic on them they just allow you to go so far hope this helps

Posted on May 13, 2014

  • Tony Vallette
    Tony Vallette May 13, 2014

    http://img.photobucket.com/albums/v200/T...

  • Tony Vallette
    Tony Vallette May 13, 2014

    Above is a link to my carbs. Its a little hard to see but there is a indentation on each of the adjusters. Where can I get the tool to adjust them with?

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SOURCE: need to adjust carburetor jets of homelite chain saw

what is the adjustment for high and low settings on a homlite 330 ?

Posted on Feb 06, 2009

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SOURCE: ryobi pcn3335 chainsaw chainbrake will not release fully

hi i have a ryobi 4545 with the same problem ( the brake will only release if i pull it back hard ) i have had a look but can not see any means of adjustment ...hope you can help.

Posted on Apr 29, 2010

  • 4088 Answers

SOURCE: How to remove plastic limiter cap on (H) carburetor adjustment

If plastic cap is present, it should just pop off with a thin sharp hook. Look carefully at the screw heads--they may be 'D' heads which require a special screwdriver and are supposed to keep owners from moving the screws (thank the EPA for these). Only authorized saw servicing dealers have access to these tools and therefore are the only folks allowed to adjust these saws. Being nonconformist, I made my own by drilling the center of a 1/4" rod, sawed off one side somewhat and welded a flat across the cut. Hope this helps!

Posted on May 11, 2010

  • 95 Answers

SOURCE: my husqvarna 445 chainsaw is

It does sound like its to lean.They come from the factory to lean to start with usually.You need a special wrench to adjust it.I bought mine from ereplacementpartsonline.I think it was about 7 or 8 bucks?They fit a lot of different saws and weedeaters.You may need to open both screws up just a little?Mine was one and half turns out from a very lite seat.If you screw in it do not tighten it.Just till you feel it stop.Then just bring it back out a turn and a half.Should be very close.

Posted on Mar 10, 2011

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I put regular gas to my ryobi c4620. Chain saw. And know it won't start I check tne spark plug has spark I put mix gas still won't start is there something I can do to get this chain saw to start


when you put un mixed fuel into a tool that needs to have mixed fuel/oil (the oil acts as a lubricant) and the tool will run on no lube for a little bit but it quickly damages the rotating metal parts inside the tool , most times the cylinder/piston is the most effected by this , ive replaced a few pistons when this occurs , and sometimes it allows it run again , but its never as good as new again

Apr 28, 2016 | Ryobi Garden

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Why does primer bulb suck bubble when pumped on my ryobi 46cc chainsaw


you have a hole in your gasline they dont cost much but finding it is the thing hope this helps

Aug 15, 2014 | Ryobi Chain Saw. 20 in. 46 cc Gas Chain...

2 Answers

Ryobi C4620 chainsaw idles too fast


I had this same thing . Its in the throttle cable tube. take the cable away from the carb. cut about 1/4 in of the tube around the cable off reattach to carb it works for me!

Apr 23, 2014 | Ryobi DOUBLE D - CARB ADJUSTING TOOL...

1 Answer

Chokes and Dies when cutting


Adjust the choke or carburetor. In case your chainsaw stalls when the engine is idling, ensure that the choke is set properly. To do so, first try releasing it to adjust it, and then move the plate and tighten all screws once again. To loosen any grit, spray carburetor cleaner spray on the choke's shaft. The carburetor may also need to be adjusted; consult your owner's manual which will guide you on resetting the idle mix screw.

Mar 13, 2014 | Ryobi 940968018 C4620 Label

1 Answer

I HAVE A POULAN 2150 CHAINSAW WITH A WALBRO WT 324 CARBURETOR. IT WILL CRANK WITH CHOKE ON BUT CUTS OFF SOON AS I PUSH CHOKE TO OFF POSITION


test the steps and fix it. God bless you

Spark Arrester

Inside the muffler of most chainsaws is a screen-like device called a spark arrestor. If the chainsaw stops after a few seconds or won't start at all, the spark arrestor might be clogged. The spark arrestor prevents small embers from being emitted by the engine to prevent fires. Over time the spark arrestor will become clogged with soot. Remove the spark arrestor and clean with a wire brush or replace.
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Carburetor

If the chainsaw engine stops after a few seconds, the carburetor might be clogged or have bad fuel in the float bowl. If old fuel was left in the chainsaw for a long time some of the volatile ingredients may have evaporated, leaving a thicker, stickier product that is more like varnish or shellac. This sticky fuel can clog up the small jets and ports in the carburetor and it can be difficult to burn allowing the engine to only run for a few seconds. The only solution is to drain the old fuel from the float bowl and thoroughly clean the carburetor with carburetor cleaner. If that isn't effective, replace the entire carburetor.
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Gas Cap

The gas cap on YOUR chainsaw is designed to let a very small amount of air into the tank. This is necessary because as fuel is consumed a vacuum is created in the fuel tank. The gas cap has a tiny vent to let air into the tank and equalize the pressure. If the gas cap vent gets clogged air can't enter the tank and eventually the vacuum pressure in the tank exceeds the vacuum pressure of the engine, and the engine stalls. The vent often cannot be cleaned because it is made of a semi porous ceramic material. If the gas cap vent is clogged, replace the cap.
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Spark Plug

If the chainsaw starts and stops after a few seconds The spark plug may be defective. Although this is not very common it is easy to test. Try removing the spark plug and installing a new one.
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Fuel Filter

If the chainsaw stops after a few seconds, the fuel filter might be clogged. If old fuel was left in the chainsaw for a long time some of the volatile ingredients may have evaporated, leaving a thicker, stickier product that is more like varnish or shellac. This sticky fuel can clog up the fuel filter and it can be difficult to burn allowing the engine to only run for a few seconds. The only solution is to drain the old fuel from the fuel tank and replace the fuel filter.6ad91f3f-147a-4ac3-97cd-7e13c345e87d.jpg

Nov 23, 2013 | Garden

2 Answers

New Ryobi petrol c/saw wont start.


If it is brand new, sounds like you should return it for the retailer to have repaired.

Dec 05, 2009 | Ryobi 18-inch Electric Chainsaw Chain Saws

1 Answer

Has Ryobi RCS 3535A chainsaw a fuel bulb priming


The numbers you supply don't cross to an operators manual but that is typical of Homelite/Ryobi. I'm going to make an educated guess that it does not have a primer system. Other Ryobi saws with primer systems include it in the specification. The 3535A does not. Close scrutiny reveals no primer.
IMO fuel primers on chainsaws are one more source of problems. In the USA ethanol additives attack fuel hoses. Without a primer routing is from the fuel tank directly to the carburetor and much simpler to replace. Primers on chainsaws operate differently than 4 cycle engines too. No fuel is injected into the carburetor or engine, its only purpose is to ensure the carburetor is full of fuel,
Typical Fuel hose routing:
  • The hose in the tank with the filter on the free end connects directly to the carburetor input connection.
  • If the saw is equipped with a primer bulb, an output line from the carburetor connects to the suction side of the primer (once the bulb is collapsed it draws fuel from the tank through the carburetor to refill as it inflates).
  • The pressure side of the primer returns displaced fuel to the tank as it is depressed.
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HTH
Lou

Nov 14, 2009 | Ryobi 18-inch Electric Chainsaw Chain Saws

1 Answer

Ryobi PCN 4040 will not start up


When I was going to college I worked at a tool rental center and learned may tricks about tools. At this rental center chainsaws were seasonal thus sat in the warehouse probably as in your situation. Well one is supposed to store a chainsaw without any fuel and discard any old fuel mix because it will not keep. To easily start a saw that was in storage we would install a new spark plug, add fresh fuel mix and spray carburetor cleaner directly into the carbureter to get it started. Once started fresh fuel would be drawn into the engine from the tank and keep running. If you forgot to drain the old fuel, do it now and use the trick above. For best results, always use a fresh plug. Enjoy

Dec 15, 2008 | Ryobi Factory Reconditioned 18" 40cc...

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