Won't Start
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Thread: Won't Start

  1. #1
    Where Am I ?
    My Bike(s)
    2006 Roadliner S
    Posts
    43

    Exclamation Won't Start

    This is a weird kind of issue but an issue none the less. My liner will not start unless I put it in gear and push it forward to cycle a cylinder. If I don't do that it will try to start but won't. When I cycle the cylinder it starts right up? Has this happened to anyone else?

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  3. #2
    Supporting Member
    My Bike(s)
    2009 Star Roadliner
    Location
    Omaha, Nebraska
    Posts
    20
    Liner engines have a decompression system consisting of spring loaded pins on the camshaft. You are likely moving the motor to a better starting point between compression strokes when you move the motor. Get it checked out after making sure you have a good charge on you battery. Your decompression system may have a problem.

    The compression release is a spring-loaded pin on the cam shaft that will kick open the exhaust valve a little early to release compression and allow the "small" starter motor to get the cranckshaft rolling.% As the camshaft begins to spin the centrifugal force withdraws the pin and allows the compression to occur so the engine can fire.%
    Last edited by NukeLiner; 05-03-2012 at 05:48 PM.

  4. #3
    Super Moderator

    My Bike(s)
    Can-AM Spyder
    Location
    Ocala, FL
    Posts
    12,065
    Quote Originally Posted by NukeLiner View Post
    Get it checked out after making sure you have a good charge on you battery.
    Your decompression system may have a problem.


    If it is the original battery, ~6 years old, it's probably due for a change....OR.....
    If you have added lights, it might not be kept at full charge anymore.

    I think we've had several riders who needed their decompression "adjusted" though.

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  6. #4
    Where Am I ?
    My Bike(s)
    2006 Roadliner S
    Posts
    43
    I don't believe it is a battery issue because it still attempts to turn over with no effort it just won't fire up. I will explore the decompression though...thanks

  7. #5
    Super Moderator

    My Bike(s)
    Can-AM Spyder
    Location
    Ocala, FL
    Posts
    12,065
    Quote Originally Posted by bgscribs View Post
    I don't believe it is a battery issue because it still attempts to turn over with no effort it just won't fire up. I will explore the decompression though...thanks
    Both those things will cause it not to be able to overcome the compression........that is, it actually won't turn the engine over; it goes UMPH and stops.

    Both things can also cause it to not turn over fast enough to fire.

    Because of the fact that forcing the engine to move a bit seems to fix it, I'd lean toward the decomp valve too.......but it still could be a weak battery, or low on charge.
    How old IS the battery ??
    Would be a good time to have it tested, even if it is NOT the immediate problem.

  8. #6
    Wants Better Weather
    My Bike(s)
    2008 Yamaha Roadliner
    Location
    Buffalo, NY
    Posts
    679
    +2 on the battery... The liner needs a good battery to start
    TJ

  9. #7
    Newbie
    My Bike(s)
    Yamaha Roadliner Vantage Trike
    Posts
    1

    Won't Start

    Did you every figure out what the problem was? I have a brand new liner / trike with the same issue. You have to move the bike just a little before the starter will engage. I thought it might be something with the Ignition circuit cut-off. It's not the battery. The starter doesn't engage at all unless you give the bike a small push either forward or backswards. I never notice the problem till I happen to be sitting on a completely flat surface when starting up at a gas station!

  10. #8
    Super Moderator

    My Bike(s)
    Can-AM Spyder
    Location
    Ocala, FL
    Posts
    12,065
    First check for loose battery cables.
    After that, it kind of sounds like bad brushes in the starter.
    Don't believe everything that you think.


 

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