Question about 1986 Honda VT 500 C Shadow

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Carburator adjusting or no gas

Got gas and ignition but front cylinder exhaust pipe is cold or warm. compresion ok.engine running

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Hi and welcome to FixYa,

Initially, if there is spark on the plug of the front cylinder, then it would be a fuel issue. Pls try:

  • Rig a fuel bottle to replace the fuel tank;
  • Remove the airbox assembly to expose the carb;
  • Start/run the bike, spray carb cleaner on the open carb;
  • note the RPM or sound of engine. Determine if front cylinder will fire even erratically. You could also try the exhaust pipe if it warms up (pls be careful might be overly hot);
  • rev the bike then cover the carb mouth of the front cylinder with the palm of your hand;
  • there should be a strong suction indicating that vacuum is created when on the intake stroke and intake valves are opening;
  • the palm of your hand should be wet with fuel, if not carb issue;
  • might require a rebuilt.
Good luck and Thank you for using FixYa. Happy New Year.

Posted on Jan 01, 2009

  • James Morrison Nov 01, 2011

    If the engine runs erratically with carb cleaner and the carb that has been hand covered, has suction, hand is wet from fuel. What would the next troubleshoot be to identify the the problem of the cylinder not being hot?

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