Question about Garden

1 Answer

Need initial carbuetor settings for jonsered 2041 chaisaw

My chainsaw starts but will not pick up revs

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 7,482 Answers

Hi Ian
Before you remove or try to adjust your low and high speed jets you should always count the number of turns it takes to lightly seat the idle mixture screw and high speed needle adjusting screws.
Be sure to write the number of turns down on a piece of paper so you will know how many turns from the seated position to open the jets when you go to reinstall them, or if you remove them for cleaning or replacement.
If you have aready tried to adjust them then the adjustments below should get it running for you for final adjustment when warm.
Normally you will adjust your idle jet to 1/2-3/4 turn open from the bottom seated position.
Then you will re-adjust the low speed of the engine when the engine is warm by turning the idle screw in or out till the engine runs smoothly at idle speed, around 1200 RPM.
The high speed jet is adjusted to 1 1/2- 1 3/4 open from the bottom seated position, after the engine is warm.
Then re-adjusted by turning the High Speed jet adjustment screw in or out till the motor runs smoothly at high speed.
Alway use the "lightly seated" method if you have not changed the screw settings.
And a little help on rebuilding the carb below.
***************************************************************************
Sounds like you have dirt/debris in your caburetor jets,fuel passages or a diaphgram that is becoming non-flexible.
Check/Clean/Replace your Air Filter, a dirty air filter can make your engine run to rich with fuel.
Also be sure to check and clean your spark arrestor in the exaust,if you have one installed on your engine.
Note: ALWAYS USE COMPRESSED AIR TO CLEAN YOUR JETS AND PASSAGES, VERY IMPORTANT.
Note:Before you disassemble the carburetor:
Write down on a piece of paper or take a picture of how the linkage attaches to your carburetor for later reference when you go to reinstall your carburetor.
Mark each piece with a awl, or some kind of instrument that will make an alignment scratch before you disassemble the carburetor into separate pieces.
That way you will know which way it goes back together when you reassemble it.
Sometimes you can get by with priming the carburetor or by using a very small shot of starting fluid and letting it run a few times like that, and it will flush the gunk out of the jets,but most of the time you will need to rebuild the carburetor.
Be sure to check your fuel tank for water and dirt/debris, if there is water/debris then you need to clean your tank.
Check you fuel line condition after a while they will degrade and need replacment.
Check/Clean/Replace your fuel filter if you have one, normally they are located in the fuel tank of chainsaws and weedeaters.
When you remove your fuel lines from the carburetor be sure to make a drawing to how the lines are connected to the carburetor or take a pictue for later reference.
Normally the big line will be the line the fuel filter is connected to inside of the tank.The smaller of the two lines is the return to the fuel tank from the carburetor after it is pumped thru the carburetor by the primer bulb.
Make sure you are using fresh fuel...and oil if your using a two cycle chainsaw or weedeater with the oil to the right mixture...too much oil as it can cause hard starting and excessive smoking.
If the chainsaw/trimmer is over a couple of years old, then I recommend that you buy and install a new carburetor repair kit,because the diaphragm will get hard and that will cause it to be hard to crank.
The diaphgram may look good and flexible, but it can be deceiving and not act as a fuel pump as it should because it has become too hard and will cause hard starting,start and run and shut off, etc.
When you clean your carburetor, I recommend that you use a laquer thinner type cleaner to clean and dissolve the laquer build-up in the float and needle jet passages.
Be sure to remove all plastic and rubber parts before using the laquer thinner because it can dissolve the plastic parts and render them unuseable.
Be sure to use COMPRESSED AIR to blow out all the fuel and air passages.The higher air pressure is needed to blow some of the trash/debris from the fuel or air passages.
Be careful when blowing out the passages, because there are sometimes small rubber type seats in the bottom of some of the passages.
Keep in mind that the float (if you have one) for the carburetor must be level when you go to reassemble the carburetor or follow the instructions you get with the carburetor kit, or you could also ask the parts man that you get your kit from.
When you clean your carburetor and remove the jet screws, you will first need to lightly seat the jet screws.
But before you lightly seat the jet screws count the number of turns it takes to seat the jet screws from their original position.
Be sure to mark the turns down on a piece of paper.
That way when you put the jets back in, you know to lightly seat them first and then turn them back out to their original position before you started.
Note:
The little spring inside of the carburetor goes under the float arm.
That is where your fuel inlet needle/float valve is located...on the arm at the end.
Normally there is a small indention in the carburetor base and a small protrusion on the underneath of the float arm where the spring will be in the right postion for installation.
The spring will set in the indention and you will install the float arm with the needle/float valve and float rod into position over top of the spring,you will push down until it is in position and then you can tighten the screw that holds the float arm assembly in position.
Once you have your carburetor cleaned/rebuilt that should solve your problem.
Please take time to rate me
Bud

Posted on Apr 20, 2013

Ad

5 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

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Ad
  • 1 Answer

SOURCE: need to know gas to oil ratio jonsered 535 chainsaw

50:1 is the mixture for the Jonsered 535. I bought mine new around 1991 and it's been a great saw.

Posted on Nov 09, 2009

  • 1 Answer

SOURCE: poulan chainsaw wild thing

Remove the spark plug and squirt a little bit of the fuel from the gas tank into the spark plug hole, replace the spark plug and crank it over several times.

If it runs, or tries to run... that tells you that your engine, ignition system and gasoline are good (or atleast good enough to get it started)

Next check your fuel line and the primer ball. Make sure that when you pump the primer ball that you can see it pumping fuel through the fuel lines in ONE direction only. (It's kind of hard to see, you might have to start the test with empty fuel lines).

If that fails, you need a carb kit because that's where the check valves are. (unless your primer ball is cracked, broken, or clogged)

Next check the metering diafram and needle in the carb. If the diafram is hard (not easily flexible) or if the needle valve is stuck shut the engine will not be able to get the fuel that it needs to run.

If the Needle valve is stuck, just clean it and it'll most likely be fine.

If the diaphram is hardened, you need a carb kit.

If all the above is ok and it still doesn't work... check the gasket at the base of the carb to make sure that the posative pressure pulses from the crankcase are able to make it through the little holes into the carb (that's how it pumps fuel into the carb).

That's pretty much all the easy stuff. Keep in mind that a new carb only costs about $28 at most places.

Posted on May 07, 2009

  • 2239 Answers

SOURCE: I have a Jonsered 20"chainsaw.CS2165

The hand guard is secured on the left side with the top l/h starter cover screw part no. 503203419, the right side is held to the brake actuating arm with a 4mm screw part no. 503202512.
Let me know if you need other parts.

Posted on Jun 06, 2011

  • 1575 Answers

SOURCE: need a manual for Jonserud 2041 chainsaw

Hi,
Download the Operators Manual from the link below:

http://www.jonsered.com/ddoc/JONO/JONO1999_EUenAPen/JONO1999_EUenAPen_O9900002_.pdf

Hope this helps.Thanks!
Please rate this answer.

Posted on Jan 08, 2012

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

My jonstred chain saw has no choke lever


Ian Duncan...

I have no idea if you are bragging or complaining...

I WILL TELL YOU ... I have started many many a chain saw... and the chokes are nearly useless...

FIRST RULE: always use only fresh fuel...!!

Proper sequence for an ice cold saw (optimal adjustment)...
- squish the fuel bulb a couple of times
- set the choke
- couple of yanks until it coughs...
- completely release the choke and the next yank will get you running

If you have NO CHOKE... JUST leave the THROTTLE ALONE
until it coughs... Then start juicing the throttle...

What's a jonstred? Oh... Jonsered

62results for choke jonsered

Jonsered Chainsaw Parts Chainsaw Parts Discount Online Parts

Nov 12, 2016 | Garden

1 Answer

I am looking for base settings for carburetor jets on a Jonsered 2036 turbo saw


Try screwing the "H"screw in then out one and 1/4 turns then rev the saw up and adjust till in really start,s to rev cleanly the "L" is for low revs at idle adjust till it idles at required rev,s.

Mar 30, 2016 | Garden

1 Answer

Have a jonsered 2240 chainsaw engine will start and idle on choke but cuts out when throttle is opened up it revs up then dies


Sounds like it might be fuel starvation. How long since you cleaned the fuel filter?

Mar 14, 2015 | Garden

1 Answer

Carb adjustment on 670 champ jonsereds chainsaw


Initial setting is one full turn out CCW on both Low and High Side.

Mar 01, 2015 | Garden

1 Answer

Carbuetor adjustment air and fuel mixture on poulan pro pp330


For initial start: Turn low and high out 1 full turn.

Sep 05, 2014 | Garden

1 Answer

Need initial carbueter settings for jonsered 2041 chainsaw


Basic setting H 1 turn out L 1 1/4 turns out, you will have to fine tune from there, maximum free no load speed 12500rpm idle speed 3000 rpm

Apr 19, 2013 | Ryobi Factory Reconditioned 18" 40cc...

1 Answer

No spark from spark plug


my jonsered 2041 was like that and I replaced the coil with a new one worked fine after that

Mar 27, 2013 | Ryobi Factory Reconditioned 18" 40cc...

1 Answer

Need a manual for Jonserud 2041 chainsaw


Hi,
Download the Operators Manual from the link below:

http://www.jonsered.com/ddoc/JONO/JONO1999_EUenAPen/JONO1999_EUenAPen_O9900002_.pdf

Hope this helps.Thanks!
Please rate this answer.

Jan 08, 2012 | Garden

Not finding what you are looking for?
Garden Logo

Related Topics:

185 people viewed this question

Ask a Question

Usually answered in minutes!

Top Garden Experts

Dennis Key
Dennis Key

Level 3 Expert

2478 Answers

john h

Level 3 Expert

12173 Answers

yadayada
yadayada

Level 3 Expert

76164 Answers

Are you a Garden Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...