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Cranks and stall

Engine is firing and getting gas

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Try pulling a vacuum over the car inlet, there may be a small peice of dirt in the main jet of the carb, by pulling a strong vacuum on the carb sometimes it will get sucked through.

Posted on Nov 13, 2008

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1 Answer

Chainsaw stalls

Not sure what to say other than its fuel starvation, if not already done replace the fuel filter in the tank, if no better i would suspect a massive air leak, so replace the crank seals, if there is no primary compression in the crankcsae fuel will not pull through the engine, good luck.

Feb 05, 2013 | Echo CS400 18" Chain Saw

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Saw won't start without starting fluid.

Sounds like you have a compression problem. Starting fluid will fire at a much lower compression than a gas/oil mix so that's why it will start with it. When the motor is running you get a little more compression because the piston is coming up so fast. You should check the condition of your cylinder wall and piston & ring. If they are damaged at all you loose compression which directly affects starting and running power.

Mar 28, 2012 | McCulloch Chainsaws

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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??

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.

May 18, 2011 | Husqvarna 450 e-series 18" Chain Saw

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I have a Husky 435 model that is less than 2 years old and as cut only about a cord and a half of lumber . The saw runs fine when it is running the problem is getting it started in the first place . I...

It should start easily, start with fresh fuel/oil, pump the primer as many times as it takes to 3/4 fill the bulb, pull the choke fully out, crank the engine until it fires once, push the choke fully in and crank again until it fires up, after re fueling a warm engine, pump the primer again until it 3/4 fills the bulb,before cranking the engine pull the choke fully out and in again( this will engage the part throttle ) then crank the engine until it fires up.

May 15, 2011 | Chainsaws

1 Answer

I have a 7hp Briggs & Stratton, about 8 or 9 years old. I replaced the fuel with fresh fuel treated with Mechanic in a Bottle. I replaced the spark plug. First try of the day it will fire off, cough...

Is there any chance there is water in the gas tank?
Usually black smoke is from unburnt fuel, blue smoke is burning oil, white smoke would be steam from water in the gas.

Have a look at these tips for difficult to start engines:

May 09, 2011 | Chainsaws

1 Answer


Start with fresh gas and a new spark plug.

Then follow theses steps.
1 Turn ignition on
2 If equiped with a primer, prime it a couple of times
3 Turn to full choke
4 Set the throttle lock to full throttle
5 With short quick pulls try to start
6 when you hear the engine fire shut the choke off
7 A couple of more pulls it should fire
8 If it stalls start over from step 3

Good Luck

May 02, 2011 | Chainsaws

1 Answer

How to start a gas makita 14"concretemetal saw

The strarting procedure is much the same for all chainsaws/power cutters, switch the ignition on, pull the choke fully out, depress the deco valve if it has one, lock the half throttle button if fitted, crank the engine until it fires once ( it will not run at all on choke ), do not continue to crank after the first fire or you will flood it, push the choke fully back in, crank the engine until it starts.

Mar 03, 2011 | Makita Chainsaws

1 Answer

Saw floods out at initail start. Saw turns off after releasing ths gas trigger.

Are you following the correct start procedure? make sure the air filter is clean, switch the ignition on, pull out the choke fully, if fitted, engage the half throttle lock, crank engine un til it fires once, push the choke fully in, do not continue to crank the engine with the choke out after the first fire, crank the engine again until it fires up and runs, if you are following this procedure and still have problems, then the rubber tipped needle in the carb is leaking, if you have a bulb pressure tester connect it to the fuel inlet on the carb, pressure up to 2 psi, the needle should be steady and no leak, if you do not have a tester, you will have to remove the carb and replace the needle as a matter of course, let us know if you need help with this.

Feb 26, 2011 | Echo Chainsaws

1 Answer

Engine cuts out when given gas

if theres nothing wrong with it you should close the choke between half and quarter (depends on the engine) and gently rev the engine bit by bit till it warms up, you will find the revs increase with gas to a point but if you give it any more gas it will start to stall and cut out, you have to wait for it to warm up - by keeping the gas at the sweet spot where you get best revs without it cutting out - then slowly increase gas pressure as the engine warms up - you can press it a little bit more bit by bit as the engine warms up and the combustion gets better - eventually you will be able to press the gas fully kin and the engine will just run but sound bogged down or gasping for air - this is when to open the choke to the RUN position (or fully open) --- it's now ready to use.
To restart a hot engine when it's been stopped : 1 Prime the engine - 3 squirts - (you wont flood it - plus it lubricates the top of the cylinder with fresh 2 stroke and is good for the engine) 2 Hold gas a quarter way open 3 Pull cord! as soon as it fires give it an extra squeeze of gas to give the best chance of a clean start.

Jan 15, 2010 | Poulan Chainsaws

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