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Br600 won’t open up and skips

Discussion in 'Hand Held Equipment and Tools' started by vortec325, Dec 28, 2019.

  1. vortec325

    vortec325 ArboristSite Operative

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    I got a br600 that’s thrown me for a loop . Was using it one day and it started bogging out and running terrible . Runs almost like it’s only firing every other time . Idles great (little high) but when you pull the trigger it revs up a little and starts shaking and missing . Went to the dealer and they said cam was bad and the timming cover was leaking, buy a new one . Well I bought the parts and did it myself . Same issue . Even switched out the coil ,carb and trigger handle wires . Adjusting the carb makes no difference at all . Am I looking at a lean condition


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  2. frank_

    frank_ ArboristSite Member

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    the 4mix engines need a leak free crankcase breathing to run properly,
    i tried to run one with the tappet cover removed, but it would,nt even start because of the inlet loop system that lubes the crank etc
     
  3. DND 9000

    DND 9000 ArboristSite Guru

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    Did you adjust the valves properly? Specification needed on both valves is 0.004", (0,1mm)
     
  4. saxman

    saxman Addicted to ArboristSite

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    Make sure the exhaust screen is clear


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  5. vortec325

    vortec325 ArboristSite Operative

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    I sealed it back up when I took everything apart


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  6. vortec325

    vortec325 ArboristSite Operative

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    I did . The stihl tool comes with the cam gear


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  7. Justin Taylor

    Justin Taylor ArboristSite Guru

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    Replace the seals?
     
  8. vortec325

    vortec325 ArboristSite Operative

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    I did put haven’t had a chance to make block off plates to do a pressure and vacuum test


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