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husqvarna 372xp wont start

Discussion in 'Chainsaw' started by kojidon, Mar 20, 2012.

  1. kojidon

    kojidon ArboristSite Lurker

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    Hi there I have a husqvarna 372xp chainsaw that wont start.I lent the chainsaw to a friend(idiot) who put diesel in the tank and ran it until it cut out and it wont start now.I have took of the carb and cleaned it also took off the cylinder to inspect it it has slight scratches.I have removed sparkpllug and there is spark also I put my finger over sparkplug inlet and there is compression there.I have tried easy start but no good.All it does is now and then it backfires could someone please help the only thing I did not clean was the jet in the carb.
     
  2. Gatsby174

    Gatsby174 ArboristSite Operative

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    With diesel in the tank, you shouldn't have hurt the p/c any more than what it was before, but your fuel system needs a complete purge. I know if that is done in a car sometimes the fuel pump gets fried and the injectors need to be ultrasonically cleaned. Hopefully you can salvage that carb? I would start with a new fuel filter and carb kit (and clean all the crap out of the carb while it's apart!). You may have issues getting the carb to clean, good luck!
     
  3. kojidon

    kojidon ArboristSite Lurker

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    Thank you

    Ok thank you for your help I will get a carb repair kit and try it out.
     
  4. Gatsby174

    Gatsby174 ArboristSite Operative

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    No problem, don't forget the new fuel filter :wink2:
     
  5. avalancher

    avalancher Arboristsite Raconteur

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    That right there is a good example of why I dont loan out saws to friends. I personally would haul that saw down to the nearest reputable saw dealer, have him fix it, and hand the bill to your friend. Its just about the only way some folks learn to be careful with other folks tools.

    In the future,if you somehow forget this latest episode of Giligans Island and decide to loan out your saw again, I personally would recommend that along with the saw goes a gallon jug of fresh fuel that you mix up yourself, along with a jug of bar oil. It might remove the chances of the fuel tank coming back with diesel fuel and the bar oil reservoir full of mom's used cooking oil complete with some chicken nugget floaters in it.
     
  6. kojidon

    kojidon ArboristSite Lurker

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    still not working

    Hi again I just fitted carb repair kit put it all back together still no joy only backfired now and then.also I put teaspoon of fuel in plug hole still no good any help ideas please.
     
  7. Boleclimber

    Boleclimber AboristSite Guru

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    I would compression test to get an idea of where it is at. You report having spark and fuel. With proper compression, the saw should run.
     
  8. kojidon

    kojidon ArboristSite Lurker

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    Hi thanks for your reply I took cylinder off again and noticed that the piston ring is stuck in the piston groove at one point because it wont have proper compression do you think if I change the piston it might work any help appreciated cheers.
     
  9. sunfish

    sunfish Fish Head

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    Clean off any aluminum transfer on the cylinder bore and install new piston and ring.

    Should be good as new.
     
  10. kojidon

    kojidon ArboristSite Lurker

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    Thanks for quick reply what grit paper should i use to remove the excess aluminium on the cylinder head cheers.
     
  11. sunfish

    sunfish Fish Head

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    Do a search here for cylinder cleaning. Lots of info on the subject.

    Use muratic acid and a Q-tip. Then 220-320 grit paper.
     
  12. kojidon

    kojidon ArboristSite Lurker

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    Sunfish thank you very much for the info may god bless you so as you win the lottery cheers.
     
  13. kojidon

    kojidon ArboristSite Lurker

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    Than you everyone for your help

    Hello everyone just an update I got my saw running today.I tried to get muriatic acid but could not get so I USed caustic soda to clean off aluminium put in new piston and Carb kit and fuel filter it fired up after 5 pulls.once again thankyou everyone who helped me repair my saw all the best chee:bowdown:rs.
     
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  14. tommyus4

    tommyus4 ArboristSite Operative

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    Pretty cool when you see good advice applied properly with a happy ending. This is a great website...
     
  15. Jtheo

    Jtheo Addicted to ArboristSite

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    I agree.
     
  16. RiverRat2

    RiverRat2 Serio Tree Freak

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    Yup!!!!
     
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