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MS280 screams on choke

Discussion in 'Ask the Experts' started by M2theB, Jul 29, 2019.

  1. 066 redeye

    066 redeye Well-Known OPE Member

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    Have read that thread husky but thanks.
    I can still fit the 441 carburettor and leave the solenoid connected to the wiring from the 441c carburettor and saw will run,correct?
    Wasn't planning on changing the coil or flywheel.
    I think Brad has done this with a 661.
    I know you went the other way.
    Cheers,Chris.
     
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  2. M2theB

    M2theB Well-Known OPE Member

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    Negative, looks good and passing vac and pressure testing
     
  3. 066 redeye

    066 redeye Well-Known OPE Member

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    Also sorry M2,I didn't mean to derail your thread with my 441 questions.
     
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  4. huskyboy

    huskyboy Sorta a Husqvarna guy.

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    Not sure man but it could be something to look into. Personally I would rather have the mtronic, it’s nice when it’s working properly.
     
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  5. DND 9000

    DND 9000 Super OPE Member

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    Should be good electrically. The passages in the fuel solenoid are bigger as in the carburetor. Normally there is no problem with dirt in it.
     
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  6. M2theB

    M2theB Well-Known OPE Member

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    No need to apologize
    I’m tuned in to both topics
     
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  7. M2theB

    M2theB Well-Known OPE Member

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    The only saw I have the 4 strokes is 562autotune.
     
  8. M2theB

    M2theB Well-Known OPE Member

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    I swapped the solenoid off the 261 into the 280. I think that was good call. The scream to the top is gone on choke.
    Stihl doesn’t run. It won’t idle at all.
    I can keep it running with the throttle but anywhere near release of the throttle and it dies.
    The only diagnostic I’ve done yet is to pressure test the fuel line. Sat.
     
  9. backhoelover

    backhoelover SERVICE MANUAL MASTER

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    Clean carb, pressure and vac test engine
     
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  10. M2theB

    M2theB Well-Known OPE Member

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    Yup
    Pressure and vac was good on tear down but didn’t check it before light off
    Carb was cleaned on tear down, but definitely could be something there.
    I did check the fuel line and that’s tight.
    I’ll get to it when I’m not so angry at it.
    Thanks @backhoelover
    Mike
     
  11. M2theB

    M2theB Well-Known OPE Member

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    I couldn’t wait.
    There’s a good leak somewhere. I think it’s on the intake but hard to tell. It was quick set up but I felt adequate.
    Ill do it again with a better set up.
     
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