I have a poulan pro 260 While using it lost it's spark, changed plug not that. Upon investigation found coil pack messed up because screw came loose..Replaced coil pack with new one but still no spark. Not sure of adjustment of coil ack from flywheel or if something else is wrong. Please help
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Make sure you have the correct plug. Use a spark tester and make sure you have spark. The air gap on the coil should be around .020". Also make sure the coil is grounded well on its mounting points. Usually corrosion prevents a ground and the coil will not produce spark. It is very rarely a coil failure.
Sounds like you may have a bad spark plug or coil..first remove the plug wire from the one not firing..using a rubber handled pliers hold the plug wire close to the plug tip or any metal part of the motor..and crank engine if you see a spark it most likely is the plug..pull the plug out and place the wire back on and do the same thing holding the plug close to the metal, if no spark change the plug..if none coil is bad..just follow the plug wire back to its beginning..the coil. It is attached by two bolts or screws,,check and see if they are tight and there is space between the coil and the flywheel..if it is loose or no space reset the clearance by using a business card as a gauge between the coil and flywheel and retighten and check for spark..If everything iis tight and clearance is ok..remove the coil and replace with a new..use the business card as a gauge...good luck.
If you have changed the fuel filter, and the hoses are not leaking, then you may well have a blockage in the internall filter in the carb, the filter is under the alloy pump cover, usually secured with a single screw.
1st try another good plug, if no spark, remove the pull start and you will see 2 small wires and 1 thick one going to the plug, disconect the one that has a spade conector on it (the other small one should be screwed down on to the coil) refit the starter and check for spark. if none replace the ignition coil/ module as one part.
start saw when cold and work it hard. if it stalls or quits remove spark plug and hook the plug wire to the plug and ground to the cyl head have switch on and pull the start rop briskly a few times or use a test plug. if there is no spark disconnect ign switch from from the ign wires and pull rope a few more times.spark?= replace ign switch,no spark until engine is cool,replace coil.
Follow the spark plug wires away from the spark plugs. The coil packs are on top of the ignition module. The coil packs have two terminals each and will have two spark plug wires attached to each coil pack. There are 3 coil packs and I would recommend replacing all three at once. They are bolted down to the ignition module bracket with a total of 6 small screws. Two per coil pack. Remove the small screws and the electrical connectors and the plug wires. Dont forget to mark the wires so you can replace them as you found them. Installation is just the opposite of removal.