homelite chainsaw wont start. It has good spark I poured gas in the carb.?

Question

homelite chainsaw wont start. It has good spark I poured gas in the carb. Shouldnt I get at least a sputter ? like it is trying to start. I was thinkin if we got spark and I manualy put gas in the carb. something should happin. Anyone have any ideas or suggestions other then the shop. Also does anyone no where I may find a schematic for a homelite 150 automatic ?

Answer 1

Have you checked to see if your saw is a two-cycle gasoline engine? If so, it runs on a mixture of oil and gas..If the misture is incorrect, the engine won't start....Otherwise, if you're getting spark, then check fuel to engine...if good, then carb is probably in need of adjustment.

good luck

Answer 2

Since I am not their I to see your chain saw personally I have to make some assumptions. First, I’m assuming that the last time you ran your chain saw it worked very well? And since it ran fine then, then it’s unlikely that it broke down just sitting in your garage.

Many small engines have a hard time starting if they haven’t been run lately or on a regular bases. Most of the problems are with the fuel delivery and the fuel in the carburetor drying up. As a matter of fact you are supposed to run them dry if they aren’t going to be used for a while. Many chain saws have a primer bulb to help fill the carburetor. Did you try priming your carburetor? I would not suggest pouring fuel directly into the carburetor (like you said you did) because you can easily flood it that way. Follow these steps:

Remove your spark plug.

Can you smell gas on the plug? Even a hint of gas? You should, if not replace the spark plug (you already said that you have spark.) (If the plug is wet and has a strong smell of gas then you have flooded it and you will need to dry the plug and wait.)

Obviously make sure that you have enough fuel.

I’ve also had problems starting my chainsaw and edger if they haven’t been started for a while. And this works every time. Moisten a rag in gasoline (not premix) and wrap the rag around the air filter totally enclosing the filter and start. If you cannot cover the air filter entirely remove it and place the rag over the carburetor where the air filter was and start. This works every time for me.

Their could be a million reasons why your chainsaw doesn’t run but I’m assuming that it ran fine the last time you used it. If it ran fine then, then most likely it should run now.

I have used this technique to start everything from lawn mowers & edger’s, chain saws, cars and even tractors with diesel engines. You can also use engine starting fluid but they are tough on engines because the starting fluid is so volatile. Starting fluid is available at most part houses.

Answer 3

This is a 2 cycle engine. It uses the crankcase to draw in gasoline into the carb by creating a vacuum or suction on the piston's downward stroke. On the upward stroke it exhausts the piston cylinder thru a hole in the bottom of the piston cylinder.

There are 2 internal REED valves in this engine. Those reed valves have gone bad, or are dirty and gummed up, or enven broken off . I suggest you dismantle the engine and examine those Reed valves. You will find those bent, or cracked, or in general inoperative. In your case, one might have actually cracked off and is missing.

It costs about $15 dollars to replace those Reed valves on a Homelite saw. There is a lot of un necessary carb work done on 2 cycle engines, when in fact it is the Reed valve problems that dont allow a suction to the carb properly.

I suggest you get a book from library on 2 cycle engines and see what these reed valves do. That will help you gain an understanding of their very importance in the 2 cycle engines starting and running.

Answer 4

Homelite Chainsaw Repair

Answer 5

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Remove air filter and pour a small amount of gas in carb. if it starts then your problem is it's not creating a vacuum to pull the gas from the tank. Probable cause is leak at prime button or fuel cap not sealing. If it does not start probable cause is faulty spark plug

Answer 6

Pull the spark plug and clean it with a wire brush, then rinse in gasoline or kero. Allow it to dry. Check that the silencer is not choked up with carbon. Make sure the air cleaner is reasonably clean. While the spark plug is out, pull the start cord a few times to remove excess gasoline.

If this does not work, you could have carby problems, this means stripping the carby and cleaning it out. Could be a workshop job, maybe you could do it. Watch that you don't damage any gaskets and seals if you do it yourself. Or maybe get a kit of new ones.

My bet is on the spark plug though.

Answer 7

If it has been sitting.get a new plug.take some sandpaper to mag and coil.last but most of all if its been sitting more then three months you will most likely have to clean carb.the passages are so small the tiniest of corrosion blocks it.if its only partly blocked then you can get a lean burn.runs fast and when you shut it off it still races.pull plug wire off and it still runs.in short make sure carb is clean the hoses are OK and oil in gas

Answer 8

Take the muffler off and inside or in back of it you will find a small screen. It is a spark arrester. Either clean it or remove it and it should work. It gets filled with carbon and won't let the exhaust out. Kinda like the "Banana in the tail pipe trick" (Beverly Hills Cop).

Answer 9

Chainsaw Won T Start

Answer 10

Maybe you flooded it. Give it a try later. Maybe your jets are blocked in your carb.