Ignition/Tuner/ECM/Fuel Injection Need advice on ignition issues? Questions about a tuner? Have questions about a EFI calibration or Fuel Injection? Tips on Engine Diagnostics, how to get codes, and what they mean. Find your answers here.

Engine miss

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  #1  
Old 01-25-2009 | 02:51 PM
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bamabadboy
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Default Engine miss

My ride has developed an engine misss. Does not happen under load, just when cruising . It spits "pssst." Idles OK. I do not get any warning lights. Happens when the engine warms up, not cold. Battery, cables, and plugs are OK.Thanks for help.
 
  #2  
Old 01-26-2009 | 10:29 AM
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KBFXDLI
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Make sure all of your ignition/spark plug wires are on tight. Is you bike carbed or EFI?
 
  #3  
Old 01-26-2009 | 11:24 AM
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If your bike is carbed, I would look at jetting as it may be a "lean miss". If it is EFI test your fuel pump & system then look into your intake sensors.
 
  #4  
Old 01-26-2009 | 12:30 PM
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CndUltra95
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If your bike is EFI, check the wires connecting to the throttle ody.
HD calls it the wiggle test...the wires become brittle and crack (short)inside the sheathing. Use a thin wooden dowel or a chop stick from chinese take out to prod around under the fuel tank while the bike is running to determie if this is your problem
Rob
 
  #5  
Old 01-26-2009 | 03:51 PM
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KBFXDLI
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Originally Posted by CndUltra95
Use a thin wooden dowel or a chop stick from chinese take out to prod around under the fuel tank while the bike is running to determie if this is your problem
Rob
Always a good idea NOT to eat with the chopsticks after the test...
 
  #6  
Old 01-26-2009 | 09:40 PM
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Ride is EFI. thanks for the tips. Will check them out.
 
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