Question about Poulan Pro 42CC 2 Cycle Chainsaw, 18"

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Poulan 2150 will not start

The spark plug looks ok. I have tried starting fluid and it doesn't do it. This seems to have some solid state stuff for spark creation it looks ok. It has been getting more difficult to start over time until now when it won't run at all. There is gas in it.

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Take the muffler off and look inside.there is probbaly score marks on the piston.if there are the unit will need a piston and cylinder.starting fluid does nothing but burn pistons up,it drys the cylinder out so it has no lubercation

Posted on Feb 24, 2009


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Fuel starvation - 'lean fuel' condition
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2) spark arrestor in muffler
3) fuel lines and tank filter
4) turn adjustment needles out (counterclockwise) 1/4 to 1/2 turn
Chain Saws:
5) check impulse tube and intake boot for cracks or leaks
*if all of the above are OK and/or do not improve performance then:
Remove Carburetor
6) replace gaskets/diaphragms
a) use a spray carb cleaner to clean jets, holes, and body of carb
b) fuel pump diaphragm goes against the carb body,
then the gasket towards the outside
c) metering gasket goes against the carb body,
and the diaphragm goes towards the outside

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a) is it carbon or fuel fouled (black and carbon deposits)
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2) Muffler remove for inspection
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Ignition Coil Test
You may need to use a jumper wire between the threaded part of the plug and the cooling fins. There is no need to bend the electrode. HTH
It may be flooded too. You shouldn't need to choke it for more than 2-3 pulls.
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1, Ignition on/off to on
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3. Push (open) choke (fast idle maintained) pull starter until it starts. Usually first pull)
1., 2. (without pulling starter), 3..
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