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Service & Maintenance Question

    Chip Lambert
    Poulan Pro PP428S 4-cycle trimmer runs poorly and dies if...escalated
    Service & Maintenance Question posted April 26, 2014 by Chip Lambert 
    612 Views
    Question:
    Poulan Pro PP428S 4-cycle trimmer runs poorly and dies if given gas even after the motor is warm. Any thoughts on what might be wrong?
    Details:

    I purchased a Poulan Pro 4-cycle trimmer (PP428S) in September of last year.  I ran it after putting it together in September and it worked great.  I think I also started it once around December-January and all was well then, too.  I tried to start it today and it would start without any trouble (following the instructions) but after letting the engine warm up and turn the choke off it would stall.  I could run it at half-choke, but if I give it too much throttle, it dies.  If I let off on the gas and give it full-choke it sometimes stays running.  I've kept the motor running for upwards of 2-3 minutes, but it's boggy when I give it gas.  The engine will run up high on the RPM's for a while at half-choke, but then gets boggy and I need to let off on the gas to keep it going.

    I'm using fresh gas that's 92 octane.  I have not yet tried replacing the plug but will do so and try again.

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