20 Most Recent Poulan Pro PR550N22SH 22Inch Briggs Stratton 550 Series Gas Powered Side DischargeMulch Lawn Mower With High Rear Wheels (NonCARB Compliant) () - Page 8 Questions & Answers

SPARK PLUG TYPE: Champion CJ8 SPARK PLUG GAP: 0.025 in. (0.51 mm) More information is available from here: http://www.acresinternet.com/cscc.nsf/ed1d619968136da688256af40002b8f7/81fd7e2d6f5cdc7988256bfa00189277

You use a 5/8" or 13/16" spark plug socket for removal and installation. It takes a Champion RN9YC.Check socket on the new spark plug for size.

Heres a link to a spark plug for the poulan 826 le hope its help to you. https://www.amazon.com/PlugTune-Maintenance-Woodshark-WildThing-Craftsman/dp/B075Q54PLW/ref=sr_1_1_sspa?keywords=poulan+826+le+spark+plug&qid=1570259790&sr=8-1-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUFNRU5LUlZIWVA2QVMmZW5jcnlwdGVkSWQ9QTAwODU3MDYxTzVQOEc1VkxJMDVTJmVuY3J5cHRlZEFkSWQ9QTAyMDg2MzhGVzFWTjlKWVVEQ1omd2lkZ2V0TmFtZT1zcF9hdGYmYWN0aW9uPWNsaWNrUmVkaXJlY3QmZG9Ob3RMb2dDbGljaz10cnVl

Well you certainly have tried a great deal of things, your compression is fairly low, however I would expect it to fire all be it not run too well, initially I would suspect a couple of things, a massive air leak i.e. crankshaft seal leaking or has fallen out, or the flywheel key in the flywheel has sheared knocking the ignition timing way out.

They print the HP on the rocket covers as this is normal you have to get a wire brush and clean the cover and make sure that you have good lighting to see what it is most brigs oppose motor with be on left rocket covers and on single cylinder this is the same

Pro 4-cycle pp428s string trimmer

The ignition timing is controled by the flywheel in relation to the core of the ignition unit and the key way in the crankshaft, so if the key in the flywheel has Shepard then the saw will kick back, if the key is ok then you can increase the air gap between the coil and the flywheel magnets to 0.5 mm, this may help.

Blower foil 1pwes 0244 bl-em or connect the gas lines Google translated fails, mostly. what is FOIL? is this a LEAF BLOWER? and you lost the gas tank and lines. you need the service manual to fix that. my string trimmer has 4 gas lines, In/out/purge /vent. only your manual covers this... we are USA so if you in France you gas lines can be different. so... get the manual that matches your COUNTRY.

Change your sentence from, where do I find, to I need to find a carburetor diagram for poulan pro curved boom trimmer model number 952-271-1961 and do an online search. It don't get too much easier than that.

industry standard small engine answer is needle screw all the way in then back it out 1 1/4 turn get the thing started and fine tune accordingly.

Turn it in all the way to stop and then out 3 turns and then adjust till engine is smooth running

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remove spark plug.attach spark plug wire.make sure metal part of spark plug is grounded to engine.get in a dark area{sparkis difficult to see vin sunlight.crank engine.if no spark check plug cap.if ok it's probably the electronic ignition module.