Question about Makita DCS6401 20 20",64cc Chainsaw 2 Cycle

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Ms260 chain saw will not start

Last used in fall 2008...worked and started fine. Run fuel tank empty in fall. Cleaned up and serviced this spring. Engine will not fire or start. Took plug out, not wet...yet could smell gas. Reinstalled plug...still won't start. 50:1 fuel mix

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Try replaceing the diaphram.

Posted on Apr 25, 2009

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Why does saw die after running for a few minutes.

Well, if it is you lucky day it is a plugged vent to the fuel tank!! Loosen the fuel tank cap and see if unit will continue to run with out a problem. If the vent is plugged after a few minutes as the fuel leaves the tank a vacuum is created and prevents the fuel from entering the carburetor.
chainsaw fuel tank vent line repair

If not so lucky it can be the ignition coil that fails when it gets hot!
Chainsaw Ignition Coil Test

One other possibility is that the chain gets tight on the bar when hot. Check tension and oilier. Manually oil just to check it out.

Last item can be fuel/oil mix!! If confusion or what ever has no oil in the mix the piston gets tight against the cylinder creating excessive friction stalling the engine and potential engine damage!!

Feb 27, 2016 | Garden

1 Answer

How to change the fuel filter on an Echo 315

Im going to assume that this echo saw is the same as most saws. Open your fuel tank and remove the cap completely. Empty the fuel from the tank, and try to swirl around the fuel to get the last bit out and any dirt that might be in the tank. Compressed air can be used to blow the tank out or flush the tank with some more fresh fuel. This is important to help your new fuel filter last longer and also the reason why the filter would need replacing. Using a length of wire, coat hanger or smaller, make a small hook on the end, small enough to get into the fuel tank, big enough to fit around the fuel line. Place the hook in the fuel tank and fish out the fuel line and the gently remove the filter from the tank, its on the end of the fuel line. Pull the old filter off and push the new filter on, Place back in the tank, Fit the fuel cap chain and fuel cap. Job done. Hope this helps

Oct 04, 2013 | Echo Chain Saw Service Repair Manual...

1 Answer

My craftsman chain saw starts and runs good until I turn it on its side to make a flush cut then it stalls.

Check to see if there is a fuel filter on the fuel line in the tank or some kind of weight to move the fuel line into the fuel when you tip it.If you run the saw with the bar vertical will it empty the tank? If it does not empty the tank look for a cracked line inside the tank. Also check to see if the line in the tank is very flexable so it can move to the fuel.

Apr 09, 2013 | Craftsman Garden

1 Answer

Chain saw was working fine and shut down suddenly. The gas/oil mixture was bubbling so I let cool. I also cleaned the air filter on the carbureator that was blocked. It still won"t start.

The fuel lines may have become air-locked.This can happen if the tank is run dry. If the saw has a primer bulb, alternatively press it several times and then try to pull start the engine with choke on. Repeat this several times. The primer bulb should feel spongy and fill with fuel.
If you're up to it, you can dismantle the carburettor and clean any dirt from valves.The carburettors on chainsaws, hedge cutters etc. are very fiddly with delicate diaphragms, valves and springs so you have to be careful to avoid damage or loosing parts.
Ensure air filter is clean. Foam elements can be washed with hot water and detergent, squeezed dry in a cloth and re-oiled with a teaspoon of engine oil spread through the foam. Paper elements can be cleaned with compressed air blown from the inside of the filter but ideally should be replaced.
Check fuel lines aren't kinked or blocked restricting fuel flow.
Ensure fuel filter isn't dirty. This is probably located at the end of the fuel line in the tank.
Check the throttle cable is actuating the throttle plate in the carburettor.
Check whether there is a vent on the tank or on fuel cap. There is usually a valve on this to allow air into tank to replace fuel as it leaves for the carburettor. Ensure this isn't blocked.

Jun 20, 2011 | McCulloch 16 Inch Gas Chain Saw MCC1635AK

1 Answer

My saw is only 5 months old and will not start worked fine when i first got it stored it for a few months with no gas in it now it wont start

Remove the spark plug and clean the electrode at the end where the spark jumps across the gap.
Pour about 5ml (or one teaspoonful) of fuel into the opening, where the spark plug came out of.
Dip the electrode end of the spark plug in the fuel so the spark gap is wet
Replace the plug and try to start it.

The fuel you poured in the opening will burn and should get the saw going. You may need to repeat it 2 to 3 times. Don't use anymore than 5 ml of fuel or you'll just flood the saw.

When you were leaving the saw in storage did you just empty the fuel tank or did you let it run until it ran out of fuel. If you emptied the tank but did not let it run dry there would still have been fuel left in the carburettor. This is what causes the damage. If there was fuel left in the carburettor it will have formed a gel in the carburettor jets. If this happens the only way to clear them is to bring it to a mechanic who'll need to strip it down and clean the jets.

I hope this helps you.

Dec 01, 2010 | Echo CS310 14" Bar Length Fully Assembled...

1 Answer

Poulan 14" chain saw will not start

Usually, the fuel filter gets gummed-up from leaving it in any kind of fuel for long periods of time. Fish it out of the tank and either clean it in spray-carburetor-cleaner or replace it. Check the condition of the fuel lines while you are at it. Proper storage is to drain the tank and run the engine until it stops. If still won't run, the carburetor internals may need cleaning and re-kitting. Make sure the spark plug is firing correctly. Hope this helps!

Apr 19, 2010 | Poulan 14 in. 2.0 Peak Horsepower Electric...

1 Answer

Chain saw won't start

Check the fuel filter for plugging (which is common when fuel is left in the machine over winter storage). You should run the carburetor dry after emptying the fuel tank for storage.Hope this helps!

Apr 14, 2010 | Poulan Pro Chain Saw 46cc 20"

1 Answer

Saw starts but engine cuts out after less then one

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

Mar 06, 2010 | Husqvarna 450 e-series 18" Chain Saw

1 Answer

Sawwon't start or run

On my 110 you take off the front section of the saw body to get et the fuel tank and remove it to get at the fuel line. There isn't much room to work in there so be patient.I'll bet your carb needs new diapragms I bought my manual on e-bay.hope this helps

Sep 08, 2009 | McCulloch Garden

1 Answer

I have a Benchmark chain saw - replaced brittle fuel lines

sounds like your clunk has come free from fuel line or it is stuck at top of fuel tank. i would empty tank and see if clunk is free by giving the saw a good shake if you cant here the rattel of the clunk you have found the problem PS clunk is a weight attached to the end of your fuel line in tank it makes the line stay at the bottom of the tank

Sep 05, 2009 | Garden

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