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Low and high idle screw setting on this patriot 1900 chain saw

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

  • 211 Answers

SOURCE: idle is off??

hi leobowdy

disassembly the carb and carefully clean it.Check the air filter,the fuel line and fuel filter,check the needle,lever,small spring and the screen filter from the carb.Check the sparkplug.
high speed H=2 turns,low speed L=2 1/2 turns,adjust T
When chain saw starts adjust H,L and T accordingly.

cheers savumihai71.

Posted on Dec 03, 2008

  • 10865 Answers

SOURCE: How do I replace a chain in an eletric saw chain?

http://www.ehow.com/video_4419336_replace-chainsaw-chain.html Here is a video which shows u exactly how to proceed.

Posted on Apr 25, 2009

  • 583 Answers

SOURCE: I have a Mcculloch chain saw. Mac 3216.

hi terry, here we go ---screw the H srew right in till it stops then back it out 1 1/8th of a turn do the same to theL screw but only back it out 1 turn.screw the idle screw in i turn. it is abit difficult adjusting things by holding them with one hand while you screwthings with the other,so if need be clamp the chain bar in a vice making sure the chain is not touching any thing.start the motor ,hold it at a high idle a minute or so to warm up, the n take it up to top revsand hold it there whilst screwing the H screw slowly in and out until it runs the sweetest then back it out 1/8 th of a ,turn, donot take it in past 7/8 ths of a turn . now release the throttle and let it idle do the same thing with the L screw in and out to where it idles best then set your idle speed with the idle screw so that the chain just holds from turning (that is not so important so long as it idles nicely with out cutting out) and there you have it . just watch your hands onthat chain .

Posted on Aug 27, 2009

dontbother10
  • 2220 Answers

SOURCE: i have a husqvarna chain saw that runs great when

If the fuel filter was recently replaced the hose inside the fuel tank is almost certainly free to move when the saw is tipped (filter on free end of hose). There is a slim possibility the hose has a hole that is immersed in fuel when the saw is in the normal position and open to the air once the saw is tipped causing starvation. I think this problem is beyond the capability of most users to trouble shoot and repair. Please try your neighbor chainsaw shop for repair. HTH
Lou

Posted on Sep 10, 2009

  • 277 Answers

SOURCE: The screws do not have a flat head? How do I adjust the carb?

if you have plastic caps on the screws you have to pop them off to turn the screws. some screws have a slot and some don't.
for the one's that don't use a pair of needlenose plyers to turn them.

Posted on Jun 23, 2010

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1 Answer

Craftsman chainsaw will not keep running


Most saws will have a high, low and idle screw adjustments.

First make sure we are dealing with a clean air filter, clean with air or tap air filter and brush to remove saw dust. Replace fuel if it is a season old or older. (Fuel filter replacement if it has seen years of use.)
2nd GENTLY turn the high screw clock wise until it bottoms out and then counter clock wise 1 and a quarter turns.
3rd do the same for the low idle.

It should run and idle at this point, let it warm up before making final adjustments. If it dies when giving it gas then more than likely it will need further adjustment on the low idle screw.

If it is really stubborn, often times the the ports are full of sludge from the bad fuel. I prefer to remove the bar and chain especially for the novice. Start the saw, secure with another set of hands if need be, turn the idle screw in to quicken the speed a little. Now you can work the low and high screws back and forth 1/4 turn while the saw is running, periodically giving it full throttle. That should be enough to dislodge buildup replace bar and chain and then your final adjustment.

If not you may have to look else where as in an air leak.

Good luck and be careful!
jeromekj

Dec 29, 2013 | Craftsman Garden

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How to adjusted the high and low in a ryobi rcs3535c4


The initial hi and low jet settings are in the owner's manual or sometimes stamped on the side cover next to the carburetor. If you do not have a manual go to lawnandgarden.manualsonline.com to get one.

Oct 04, 2013 | Garden

2 Answers

42cc 18 inch craftsman chainsaw model 358-351910-18. Saw runs great at idle or while not cutting wood, when starting to cut wood just after the entire bar gets into the wood engine bogs down and chain...


Generally this is a fuel / air ratio problem. Usually it can be solved by a carb adjustment. On the carb there are usually two screws, one marked low or L , the other marked high or H. Low is your adjustment for idle mixture, high is for mixture at full throttle. The saw should Always be adjusted to run well during the cut. Make adjustments a little at a time, then try The saw. Continue small adjustments untill the saw is performing well at full throttle while Cutting.

Aug 09, 2011 | Poulan Pro Chain Saw 46cc 20"

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My Homelite ZR10926 16-Inch 33cc Ranger it is starting, idling, it dies when I accelerate it. I assume is the carburetor, maybe ? thank you.


It probably is not getting enough fuel. Check the filter in the tank. If it has been sitting with stale gass this filter plugs up.
Try running the engine with some choke. If this helps, try adjusting the carburetor high speed screw.

Jun 04, 2011 | Homelite ZR10926 16 Chain Saw

1 Answer

Fuel mix and slow/fast running jet ajustment Dolmar sach 119. starts easy wont pull under load.


Set both the high and low speed screws from lightly seated to 1 1/4 turns out. This will give you a rough setting that will allow the saw to start and idle. Set the idle screw to where the chain just stops moving at idle.
With the saw warmed up adjust the low speed screw out until the saw smokes a bit and acceleration is sluggish. Bring the screw in small steps until the hesitation is gone from the acceleration...you may need to adjust the idle again after this.
Now hold the throttle wide open and while it is wide open adjust the high speed screw in until the noise becomes smooth and the saw "sings". Do not leave it at this setting as it will burn down in short order. Once the saw is singing back the screw out until you can hear the saw's tone "roughen"....then back the screw out a tad more for good power / fuel under load.
That's it in a nutshell...here's a good link also...

http://www.youtube.com/watch?v=3Lw0pJcEPYo&feature=player_embedded

Dec 08, 2010 | Garden

1 Answer

WILL YOU PLEASE TELL ME HOW TO ADJUST THE CARB AIR-GAS THE THREE YOU TURN WITH A SCREWDRIVER


Set both the high and low speed screws from lightly seated to 1 1/4 turns out. This will give you a rough setting that will allow the saw to start and idle. Set the idle screw to where the chain just stops moving at idle.
With the saw warmed up adjust the low speed screw out until the saw smokes a bit and acceleration is sluggish. Bring the screw in small steps until the hesitation is gone from the acceleration...you may need to adjust the idle again after this.
Now hold the throttle wide open and while it is wide open adjust the high speed screw in until the noise becomes smooth and the saw "sings". Do not leave it at this setting as it will burn down in short order. Once the saw is singing back the screw out until you can hear the saw's tone "roughen"....then back the screw out a tad more for good power / fuel under load.
That's it in a nutshell...here's a good link also...


Dec 07, 2010 | McCulloch Garden

1 Answer

I have a homelite chain saw and is out of setting.


You need to set the mixtures for the carburetor. You will find a Low and High adjustment screw. At idle turn the screw in or clockwise until the rps starts to decrease. Then start turning it out till you hit max idle rpms. Turn screw back in a quarter to half turn and it should be idling smoothly. Be careful here and get someone to hold saw if necessary but hold in throttle to full speed and do the same with high adjustment screw. turn it in till rpm starts to drop then back it out until you get to max rpm and it won't go any higher then turn it back in a half a turn.

May 01, 2009 | Homelite ZR10926 16 Chain Saw

1 Answer

Poulan 2450 wont start


After warming up the engine at part throttle for a couple of minutes, clear it out with a 3 second burst. Then idle the engine.. If the chain rotates, turn the idle speed screw to the left (CCW) until the chain stops.
Turn the LO NEEDLE slowly to the right (CW) to find the fastest engine speed. If this causes the chain to rotate, repeat idle screw adjustment to stop the chain from rotating.
High speed (with throttle wide open). Set needle 1-1/4 turns open, checking for smooth acceleration by opening the throttle wide for 3 seconds. If the saw stumbles, turn needle to the right (CW) 1/8 turn @ a time until smooth acceleration is obtained. Try a saw cut to see if adequate power is available. Continue making 1/8 turn adjustments (CW) until saw shows a power drop when asked to cut. (This indicates too lean a mixture setting.) Then, from the setting in step 3, turn the HIGH NEEDLE 1/4 turn to the left (CCW). Check the cutting ability of the saw again. This should be the best setting for your particular altitude, temp. and humidity conditions.
To pre-set before initally starting the saw, turn LOW and HIGH and IDLE screws in gently till each one just stops. Then turn each out (CCW) 1 - 1 - 1 1/4 turn.
Hope this is helpful. Try www.zamacarb.com/tips.html Select the "Tech. Guide"
Good luck and God Bless.
oft

Jan 21, 2009 | Garden

2 Answers

My 345 chainsaw bogs down when it hits wood


There are two idle screws one high, and one low. Your high adjustment idle screw needs to be adjusted.

Jan 18, 2009 | Husqvarna Forest & Garden No.967012396 345...

1 Answer

Idle is off??


hi leobowdy

disassembly the carb and carefully clean it.Check the air filter,the fuel line and fuel filter,check the needle,lever,small spring and the screen filter from the carb.Check the sparkplug.
high speed H=2 turns,low speed L=2 1/2 turns,adjust T
When chain saw starts adjust H,L and T accordingly.

cheers savumihai71.

Nov 22, 2008 | Ryobi Factory Reconditioned 18" 40cc...

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