BR 400 Bogging Down

Discussion in 'Lawn Mowing' started by powerreel, Jan 10, 2001.

  1. powerreel

    powerreel Banned
    Posts: 481

    My trusty BR 400 is having some trouble. It starts on the 2nd pull but give it gas and it cuts out. I'm not really sure how to adjust the carb. Help!
  2. HOMER

    HOMER LawnSite Gold Member
    Posts: 3,183

    Change the plug and the air filter. Mine was bogging to and you would be surprised how dirty that little filter can get. If you've already done this then I'm at a loss, I don't think there is much adjustment on the carb.
  3. Eric ELM

    Eric ELM Husband, Father, Friend, Angel
    Posts: 4,831

    If a plug won't work and the carb has no adjustment, like some are now, it could be the spark arrester is plugged or the exaust port is plugged up. Either of the last two are easy fixes. Clean the spark arrester or pull the muffler off and clean the carbon out of the exaust port. It will run like new again if that's the problem.
  4. TGCummings

    TGCummings LawnSite Senior Member
    Posts: 773

    I would of said the spark arrestor, too, but Eric beat me to it. :)

    If you still have your manual, it will tell you exactly how to set the carb. I have had very similar trouble with my Stihl hedge trimmer, and learned from a quick look in the manual how to reset the carb proper. It's worth a check if the spark plug and air filter are both still good, and the spark arrestor has already been replaced, cleaned or removed.

  5. powerreel

    powerreel Banned
    Posts: 481

    I'll try that today thanks guys.

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