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Thread: Backfiring

  1. #1
    Newbie
    My Bike(s)
    Yamaha Roadliner S
    Location
    Brisbane, Australia
    Posts
    10

    Backfiring

    I have a 2006 Roadliner with stock standard exhaust system. I have noticed that sometimes it is backfiring when decelerating or coasting off throttle !

    I pretty sure that this is not normal but just wanted to check with other Roadliner users before going back to the Dealer.

    Just drop me a quick yes/no.

    Thanks
    BIGJ

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  3. #2
    Third gear and cruising
    My Bike(s)
    99 Suzuki Marauder
    Location
    Tacoma, wa
    Posts
    526

    Re: Backfiring

    I don't have a roadliner, but that ain't right. Usually the only time that should happen is when somebody has been messing with the pipes or carb mixture somehow. If it's all stock, I'd say it's time for a visit for warranted repairs at the dealer...

    Sent by middle finger express

  4. #3
    Y2K
    Y2K is offline
    No Significant Other
    My Bike(s)
    Electraglide Classic
    Location
    Mt.St.Helens
    Posts
    2,481
    Probably an exhaust leak somewhere letting air in the system,that tecnically isn't a backfire when you get some poping on decel
    If the bike is completely stock it's probably running pretty much on the lean side too,EPA regs ya know.

  5. #4
    M-J Lifetime Achievement Award
    My Bike(s)
    '10 Kaw Vulcan 900 Custom
    Location
    Ocala, FL
    Posts
    8,714
    Quote Originally Posted by Y2K View Post
    Probably an exhaust leak somewhere letting air in the system,
    Or an intake leak or a loose or damaged air filter.

    Seems like I remember that some Roadliners have that characteristic........and it is made a LOT worse when the idle speed is too low.
    Don't believe everything that you think.

  6. #5
    Newbie
    My Bike(s)
    Yamaha Roadliner S
    Location
    Brisbane, Australia
    Posts
    10
    That everybody. The Roadliner is going for a major service tom. so that should fix it.
    Cheers

  7. #6
    Banned
    My Bike(s)
    Ilene
    Location
    the land of the setting sun
    Posts
    880
    I am not sure about your yamaha, but alot of kawasaki's have a clean air system.
    basically vacuum hoses go to a solenoid that opens the inlet to the exhaust via reed valves.
    the exhaust velocity traveling through the pipes creates a pull when the exhaust valve closes and that pulls open the reed valve which pulls air from the air filter into the exhaust.
    the vacuum hoses from before the throttle get more vacuum when the throttle is closed, then pull on the solenoid.
    fairly normal if you ask me. Cinnamon_Tic_Tac.jpg take these and call me in the morning.

  8. #7
    Newbie
    My Bike(s)
    Yamaha Roadliner S
    Location
    Brisbane, Australia
    Posts
    10
    Came back from the service and a gasket had to be peplaced on the back cylinder, air filter was also cleaned and it is a lot better now. Just minor growling now on decal which apparently is normal for this bike.

    Thanks everybody

    Case Closed

  9. #8
    Banned
    My Bike(s)
    Ilene
    Location
    the land of the setting sun
    Posts
    880
    I was thinking it may have been a stuck timing advance spring.

  10. #9
    Banned
    My Bike(s)
    Ilene
    Location
    the land of the setting sun
    Posts
    880
    timing chain tensioner, probably sticking. I am investing in an "APE" mechanical tensioner before I lose my valves in the cylinders.

  11. #10
    gaz
    gaz is offline
    Newbie
    My Bike(s)
    2006 Yamaha Roadliner
    Location
    brisbane
    Posts
    3
    i like the Popping, keeps the cagers away


 

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