Question about 2005 Suzuki Boulevard C50T

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06 suzuki surges at cruise speed and will stall during idle what can be the problem?

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Possible causes are:
Plugged up carburetors. Has the bike been sitting for a year or more? If so, then the carbs need to be disassembled and cleaned out. Moisture in the float bowls can cause this, too. Drain the float bowls.
Jetting too lean. Modifications to the exhaust system or air filter will require more fuel (larger jets).
Air leaks between the carburetors and the engine. Check for cracked intake manifolds or loose carburetors.
Low compression. Most likely cause is insufficient valve tappet clearance. Perform a complete engine tune up.

Posted on Nov 13, 2009

  • Mark  Eaton
    Mark Eaton Nov 02, 2010

    Would be a helpful answer....if the '06 C50 had carburetors! The valid part is that you may want to go ahead and perform a valve adjustment and see if it helps. If not, then you must turn to the Electronic Fuel Injection system, and begin to troubleshoot it step by step.

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