Question about 2005 Suzuki Boulevard S40

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Bike stalls at traffic stops unless I keep giving it gas

My Boulevard s-40 tends to stall when I come to a light and have to stop. If I don't keep giving it gas it dies.

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  • suzukisue Apr 17, 2009

    I changed the oil on Suzuki s40-2005 recently and filled with fresh gas. Started up fine, rode 3 blocks and it died at intersection. pushed it home, charged up the battery overnight. tapped off the oil (1/4/quart) 
    The next morning it starts fine, I let it idle in neutral, then 3-5-minutes later, it stops.
    I try 2-3 more times to start. Engine turns over then dies.
    Please help, I don't know how to get it in to someone to work on it


    -Susan

  • aimee_melind May 26, 2009

    My bike won't start unless I give it some throttle and today I was half way through a ride, downshifted and bike stopped working. Thought it was out of gas, put more in and it still isn't starting. I hear it clicking but engine never picks up. Suggestions?

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  • 66 Answers

Check exhaust gasket for leak, check spark plug, air filter,valve tappet clearance adjustment, and intake boot for leak,if ok do compression test142-203 psi. if ok carburator may need cleaning.

Posted on Feb 20, 2009

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Maybe this will help. This is a common problem that I have had with my GV250. Almost the same bike mechanically by Hyosung.

If the battery is low on charge and you are lucky enough for the bike to start. As per normal when first started it revs higher because the bike is cold, this turns the alternator fast to give you the electricity you need to keep the bikes computer working properly. Bike will warm up and revs drop down, alternater not turning as fast, not as much electricity being made. Bike will either stall or rev up and down irradically to try to produce its own electricity. This will occur when the battery charge is low and bike is at low revs, for example when you slow down for traffic or you stop.

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