20 Most Recent Poulan Pro 42CC 2 Cycle Chainsaw, 18" - Page 4 Questions & Answers

5/32 inch diameter round file

no offence thats a made in china saw poulans are but it might just need carburator cleaned and new filters and plug wouldnt hurt to check the clutch springs either there bad to break

Need to know why you need a rebuild ? What's the specific problem with the carb now ?

What your saying is the gas cap is tight and still leaking gas? Check the underside of the cap to see if the rubber gasket is missing. it may of fallen off

if the outer case has screws in it maybe..if not ..lots of this stuff is throw away any way..

if it wont turn over ,then it is seized.

Yes, it should work no problem. I’m happy to help further over the phone at https://www.6ya.com/expert/rich_56ff966bfb9bfbc7

You might need to adjust the throttle. There is a hole on the side of the saw with an arrow. There's an L on one side of the arrow and an H on the other. Turn the screw in the hole slightly toward the H and try to start it up again. If that makes a difference, you may need to make a few more slight turns until it's at an optimal idle speed. I’m happy to help further over the phone at https://www.6ya.com/expert/rich_56ff966bfb9bfbc7

check basics 1st fuel , air, compression, spark , timming
then secondary compression ie crankcase air tightness
2 strokes need air tight c/case in order to draw in & pump mixture

check your tank breather is working,

has this saw been sitting a while ? if so might pay to rekit carb

check your carby diaphrams are pliable and inlet screen is not blocked and metering needle is set flush with chamber floor,
are hi / lo needles set base settings are 1-1/4 turns out from lightly seated , final hi setting is done while @ full rev and needs to 4 stroke slightly

check ignition spark under load ie while under compression load- could be a weak spark

check timming key

check for a air leak at cylinder / manifold block gasket or carb joint

check barrell bolts are tight everything been = engine should run

cheers

Check out BAY DISTUBTERS North Bay Ont. They will find ya a dealer

I cut the plastic gas cap threads with an razor knife until cap fit. Rubber seal on top of cap holds the gas in.....Easy to do.

Best case is the engine is hydrolocked. Pull out the spark plug and try pulling the starter. If it turns over some saws with automatic oiling over time will let bar oil into the cylinder. Liquids can not be compressed so you can not turn it over. If this does not cure the problem the engine is ruined possibly by the wrong gas to oil mixture.