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Petrol Strimmer making smoke - why?

  • 16-06-2020 7:50pm
    #1
    manofthefora
    Registered Users, Registered Users 2 Posts: 154 ✭✭


    I have a Featherlite Weedeater petrol strimmer.
    It recently stopped working and I fixed it by replacing the broken fuel pipes.
    The strimmer now works fine but produces a lot of blue smoke.
    Any suggestions as to the possible causes of this?
    MOTF
    Tagged:


Comments

  • #2
    Snowc
    Registered Users, Registered Users 2 Posts: 613 ✭✭✭Snowc


    Sounds like your oil to petrol mix is too high 50 or 40 to 1 is usually right for a strimmers , sounds like you mixed 40 or 50 oil to petrol which will have the fire brigade calling to you


  • #3
    CJhaughey
    Registered Users, Registered Users 2 Posts: 14,907 ✭✭✭✭CJhaughey


    Could be oil type and ratio of oil to petrol as stated above.
    Also it could just need a really good hard run with plenty of load to clear it out.
    Mix fresh fuel with good quality two stroke oil at a ratio of 125ml of oil to 5 litres of fuel.
    Thoroughly mix it and shake it well.
    Then run the strimmer hard, wide open throttle in grass, not free revving.
    See if that helps, there could be a lot of old oil in the crankcase being pulled up and burning off.


  • #4
    Shefwedfan
    Closed Accounts Posts: 18,958 ✭✭✭✭Shefwedfan


    Oil to petrol mix wrong


  • #5
    GinSoaked
    Closed Accounts Posts: 1,049 ✭✭✭GinSoaked


    Also check the inside of the exhaust box and outlet from the top of the cylinder.

    Sometimes too much oil produces a build of of black oily carbony gunk inside the exhaust an outlet, because this reduces the outlet it also makes the smoke worse.


  • #6
    manofthefora
    Registered Users, Registered Users 2 Posts: 154 ✭✭manofthefora


    OK, thanks to everyone for that.
    I was afraid it would be some carb adjustment, beyond my pay grade.
    I think the mix I used was originally correct but it had been lying in a can for over a year and also maybe wasn't well shaken.
    I'll do a fresh mix and give it a blast to clear away any residue.
    Will also check the exhaust is clear.
    Much appreciated
    MOTF


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