Question about Poulan Pro Chain Saw 46cc 20"

1 Answer

No start problem Poulan Pro PP4218AVX

I ordered a ignition module after not seeing the spark plug fire but after playing with it found out it was the kill switch. Even before I was having a hard time starting it, After running for a while it would die and I would strugle to get it going again. I went to a shop and they told me to change the fuel and do the 40:1 mix I will try this and keep you posted

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  • renemvalenci
    renemvalenci Aug 07, 2009


    CHEERS:

    This engine is certified to operate on unleaded

    gasoline. Before operation, gasoline

    must be mixed with a good quality synthetic

    2-cycle air-cooled engine oil designed to be

    mixed at a ratio of 40:1. Poulan/WEED

    EATER brand synthetic oil is recommended.

    A 40:1 ratio is obtained by mixing

    3.2 fluid ounces (95 ml) of oil with 1 gallon (4

    liters) of unleaded gasoline. Included with this

    saw is a 3.2 ounce (95ml) container of Poulan/

    WEED EATER brand synthetic oil. Pour the

    entire contents of this container into 1 gallon (4

    liters) of gasoline to achieve the proper fuel

    mixture. I went over the manual and I thought I had made the wrong mix ratio but according to it is 40:1 I was able to start and run it for a while and then died, kept pulling the cord until I had no more energy finally started and run again for 1 minute and then stopped, I can see the spark but no start again. I think it has a carburetor malfunction. Thank you

  • renemvalenci
    renemvalenci Aug 07, 2009

    Thank you I will give a last try this weekend adjusting the carb. the way you mentioned. I will keep you posted. I was able to get a Electric Craftsman for free that works like a charm, only thing is manual oiling every 10 seconds and holding the knob for 3 seconds. Again thank you

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  • Master
  • 583 Answers

I own 4 saws corrently--- and i have had numerous saws over the years. i even had a business for 9years manufactureing lawn mowers and selling and servicing small motor s and chainsaws etc.------ and i would never use or allow to be used a fuel .oil ratiogreater than 25 to 1----- for what it is worth! but conditions here in aust may be different to usa

Posted on Aug 06, 2009

  • kerry littleton Aug 07, 2009

    thanks for the feedback.poulan are not abig seller in aust we probabley use predominately stihl . and they are 25.to 1 as are most saws here funilly enough mercury o/boards were 100 to 1 when they startedchanging things about 20 years ago but here in w.a they vrey soon brought it back to50 to1 it could be an atmosphere thing...the worst thing that can happen with the extra oil is the saw may smoke a bit and clog the spark arrestor gause occ asionally 1thing for sure, your problem is not mixture related from what you are saying i think yours is a carberation problem for sure..have you adjusted the H and L mixture screws? your manual sould tell you how. just in case they dont try this --screw the h screw in as far as it will go then back ir out 1 1/8 turns then the L screw in till it stops and back it out 1 turn (count the number of turn on each as you screw them in so you can always go back to where you started)if it starts and runs at max revsscrew the H screwin and out until the motor is as sweet as it wllrun then back off 1/8 th of aturn never go in more than 7/8 th of aturn... secondly do the ssame at idle,try that andsee how you go and thanks for the feedback

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