450 e-series 18″ Chain Saw
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Hi uppekka…
Too much oil in the gasoline…will cause the excessive smoke
Not running could be cause by something below…
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Make sure you are getting spark at the spark plug, to do this:Remove your spark plug and check to be sure you are getting a bright blue spark at the spark plug.You do this by grounding the plug on the head of the engine and pulling the crank rope…watching the plug for spark.If you are getting a nice blue spark then skip A below and go to B.
A…If you do not get a nice blue spark then you may need to replace the electronic module.Note: If you have to replace the module be sure to measure the position it is in, it is critical to starting.
B…Also take some fine grit sandpaper (not emery) and lightly sand the flywheel where the magnet is located to clean any rust or corrosion from the magnet area.Then follow the procedure 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.
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.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 with the oil to the right mixture…too much oil as it can cause hard starting and excessive smoking.If the chainsaw 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 indetion 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 thumbs up
Too much oil in the gasoline…will cause the excessive smoke
Not running could be cause by something below…
***********************************************************************
Make sure you are getting spark at the spark plug, to do this:Remove your spark plug and check to be sure you are getting a bright blue spark at the spark plug.You do this by grounding the plug on the head of the engine and pulling the crank rope…watching the plug for spark.If you are getting a nice blue spark then skip A below and go to B.
A…If you do not get a nice blue spark then you may need to replace the electronic module.Note: If you have to replace the module be sure to measure the position it is in, it is critical to starting.
B…Also take some fine grit sandpaper (not emery) and lightly sand the flywheel where the magnet is located to clean any rust or corrosion from the magnet area.Then follow the procedure 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.
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.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 with the oil to the right mixture…too much oil as it can cause hard starting and excessive smoking.If the chainsaw 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 indetion 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 thumbs up
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 :
My chain saw starts and then dies what is wrong? This could be a number of things and is most likely fuel or storage related. Over a short period of time, fuel will become stale. If the unit is stored with stale gasoline, the system will become clogged or restricted.
If your chainsaw still starts and then stops working, check the air filter. Clean or replace the air filter if it is dirty or damaged. Another reason that your chainsaw starts and then stops working could be that the spark arrestor is dirty or clogged.
If your saw idles fine, and then bogs down when pressing the throttle, then adjust your `H` screw by unscrewing. This will increase the amount of fuel to the carburetor under load. If your saw idles fine, then runs lumpy with a lot of smoke when pressing the throttle, then adjust your `H` screw by screwing in.
This most commonly is a result of a dull chain and exerting to much pressure on the bar and chain trying to make the chain saw cut. This could also be either a lack of bar and chain oil ( tank empty, restricted oiler hole ) or an inferior type of oil that is being slung off the chain and not lubricating.
The carburetor might be clogged. A clogged carburetor is often caused by leaving fuel in the chainsaw 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 chainsaw engine to stall.
The fuel line may be clogged from stale fuel deposits, more reasons to cause your chainsaw to cut out when applying throttle. If a fuel line is cracked, it will leak gasoline and draw air from outside into the fuel line. If the line is leaking fuel, it needs to be replaced.
Smoking or burning wood and excessive chain rattle without any cutting are all strong signs that the chain is mounted backwards. If this is the case, discontinue use of the chainsaw immediately until the chain is reinstalled the correct way.
And finally, the chainsaw giving off smoke is a surefire sign of it being overheated. I`m not talking about exhaust smoke, but smoke with “unnatural” color and intensity. And finally, if your chainsaw stops after displaying one or more of the above signs – you can be about 90% sure that it overheated.
Discover Relevant Questions and Answers for Your Specific Issue
the most relevant questions and answers related to your specific issue
Have spark wont start – Husqvarna Chain Saw 18" 450 Model 966955438
ANSWER : If there is a good spark at the plug, it can be one of two things, either the piston has picked up in the cylinder ( remove the muffler and check the condition of the piston skirt through the exhaust port ) or there is no fuel getting the the plug ( replace the fuel filter in the tank )
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Cannot get the saw started – Husqvarna 450 e-series 18" Chain Saw
ANSWER : Check for spark check fuel filter carb kit if sitting for while new plug
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After a few months in storage, my saw will start, but the chain seems stuck – I can[‘t move it with my fingers, and when I gas up the engine, the chain doesn’t move & the engine stalls. There’s no rust, plenty of oil – everything is clean.
ANSWER : Release the chain tension adjuster and push the bar inward to make sure it moves. This is an auto-set tension adjustment and should set itself so that the chain can be be moved by hand. The chain oil on the bar may have gelled enough to prevent chain movement. A spray of WD-40 around the chain perrimeter would probably loosen the chain as well. Hope this helps!
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Husqvarna 350 saw chain oiler not working , possible solutions . thanks Ken
ANSWER : Remove the chain and cover holding it and check the hole that the oil comes out is not blocked by sawdust.
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I used my brand new Husqvarna chain saw for about 30 minutes then when I pinched the blade a little bit and it kicked back out at me, the chain stopped moving. I can’t even turn it by hand. The engine runs but you can tell it run wide open. and the gear that runs the chain doesn’t move either. Please help.
ANSWER : The chainbrake has actuated, you need to pull the hand gurd fully toward the rear of the machine until you hear the click of the brake unloading.
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Saw starts but engine cuts out after less then one
ANSWER : I think you really need fresh fuel, clean out tank as much as poss with new oil also. will probably take a while to pump fuel through
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Husqvarna 460 rancher saw- chain brake is tripped and locked; cannot replace cover How do I reset the chain brake?
ANSWER : Pull back on the chain brake, this will release it.
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Have new 450 and is very difficult to start. Lost or didn’t get book. How do I start it and re-start it while still warm??
ANSWER : Start procedure is, push the primer as many times as it takes to 3/4 fill the bulb ( you cannot over prime it ) pull the blue choke lever fully out,place the saw on the ground with your right boot through the back handle, crank the engine until it fires once, do not continue to crank the engine with the choke out ( they will not run on choke, only fire ) push the choke fully home, crank the engine until it starts, blip the throttle trigger to bring the saw to idle, warm engine, pull the choke fully out and push in again without cranking engine, this will engage the part throttle, crank the engine until it starts, blip the throttle to bring the engine to idle.
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