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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Craftsman LT2000 w/ 18.5 HP B&S engine- will not start-been sitting up for year in shed- new battery- checked fuel flow to carb: OK - checked spark plug: cleaned , seems OK- engine turns over but not...


A 'cranks but doesn't start" problem just needs to be narrowed down to compression,fuel,or ignition.The compression is pretty obvious-does it sound like the stater is getting a load when cranking?The next one is fuel-do you smell raw gas fumes coming out of the exhaust?The last one is spark-take the plug out and clamp it to the block,crank it,do you see a spark? If you have compression and spark,try a shot of starter fluid down the carb.(sometimes the float needle can get stuck,and just getting the engine to fire will shake it loose).If you don't have spark,then look for why(not sure if you have a magneto or ignition coil system).

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My plug is firing and i even tried starting fluid my poulan (craftsman) will not start HELP MOD.358.360180


The first thing you need to look at is the inside of the cylinder.Take the spark out and look down the hole.You will need a flashlight.Look towards the muffler side.If you see scratches.Its blowed up.If thats ok it could have an air leak some where.Or possibly a bad fuel line,or fuel filter.

Mar 14, 2011 | Poulan Garden

1 Answer

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Dec 05, 2010 | Poulan Bp406 45.4cc Backpack Leaf Blower

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Seems to flood easily. turn choke on pull rope 1 time then set half choke and still have to pull rope 30 to 50 times to start also seems to be running lean even though ive adjusted carb several times,...


Check the fuel filter, air cleaner, and muffler for plugging. Check the fuel lines for decay or other problems. Be sure that you have fresh fuel mix in the tank. Check the quality of the spark at the plug--it should be blue and snappy (plug gapped 0.020"). If weak looking, try a fresh plug first--if no help, remove the left engine case to expose the flywheel and ignition module. Turn the flywheel magnets just under the module poles, insert a thin business card into the pole gaps, loosen the module screws to allow the module poles to contact the magnets. Tighten the screws, and rotate the flywheel slightly to remove the card. Rotate the flywheel one full turn to make sure the gaps don't close up further. Reassemble and test for spark again. If ok, try for running the engine. Be sure the engine 4-strokes when running unloaded, but immediately 2-strokes when cutting by adjusting the H jet needle. Hope this helps!

Nov 07, 2010 | Poulan Pro 16-Inch 38 cc Anti-Vibration...

1 Answer

Won't start, won't fire after starting fluid is used, checked spark and its blue and very small. Has new plug. Suspect bad magneto, can it be tested? Thanks Don't know model, label on handle says Poulan...


First off you should never use starting fluid on a 2 cycle engine. Serious damage to the piston and combustion chamber could result. Try changing the spark plug and if it's neccessary to prime to start use a squirt bottle with the same fuel/oil mixture as required to run your machine. Try squirting a small amount into the combustion chamber through the spark plug hole. Squirt,replace spark plug,and start. Starting fluid also washes the cylinder of an oil and it could cause a siezure of the piston.

Sep 22, 2010 | Poulan 25cc 2-Cycle Gas Powered String...

1 Answer

Poulan 2150 very hard to pull start..first time this season trying to start...seems like too much compression...pulls nice and easy with spark plug removed..with the spk plug in...very hard to pull..still...


If fuel leaked into the engine over the winter, it could cause very hard-to-pull problems. Remove the plug, ignition off, with the cylinder/head down, pull it through vigorously to see if expels any fuel. Replace last year's fuel with fresh fuel mix. It's a good idea to allow the engine to run out of fuel before storage. Does this engine have a compression release? If so, it may need cleaning to work properly. Hope this helps!

Apr 20, 2010 | Garden

1 Answer

I have a poulan 2150, won't stay running, why?


Fuel starvation - 'lean fuel' condition
Basic things to check:
1) spark plug
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

No-start
Basics to check:
1) Spark plug - brown or dark brown - OK
a) is it carbon or fuel fouled (black and carbon deposits)
b) is there spark

2) Muffler remove for inspection
a) exhaust screen clean or plugged
b) inspect cylinder wall/piston as the flywheel is slowly rotated
3) Check cylinder compression

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2 Answers

Poulan 2150 cainsaw will not start .replaced spark plug ,


I suspect your ignition module is bad try this.

Ignition Coil Test
http://www.youtube.com/watch?v=L7WNBDRG4C4&feature=PlayList&p=3789DC1EE87C8098&playnext=1&playnext_from=PL&index=21
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
Lou
It may be flooded too. You shouldn't need to choke it for more than 2-3 pulls.
Husky (cold):
1, Ignition on/off to on
2. Pull (close) choke (also sets fat idle); pull starter and listen for an attempt to start. once heard (usually twice)
3. Push (open) choke (fast idle maintained) pull starter until it starts. Usually first pull)
Warm:
1., 2. (without pulling starter), 3..
Hope this helps
Lou

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