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chugging and back firing

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  #1  
Old 05-23-2005, 03:48 PM
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Default chugging and back firing

just spendt a wild weekend in myrtle beach, had a couple of days cool weather some rain. one cool night my 98 fxstc began to run bad on start up even after a few minutes of warm up it chugged until about five or six miles of driving before it cleared had to keep adjusting choke before it cleared, any thoughts
?
 
  #2  
Old 05-23-2005, 05:23 PM
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Default RE: chugging and back firing

Sometimes the wiring will get wet (especiall after a wash) and run rough for awhile. Has it fixed itself yet. If not try changing the plugs.



Terry
 
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Old 05-24-2005, 12:50 AM
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Default RE: chugging and back firing

Sounds like the bike had alittle too much to drink the night before.

Myrtle will do that to you

 
  #4  
Old 05-24-2005, 02:05 AM
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Default RE: chugging and back firing

Plugs, vaccum leak.

Regards,

Bill
 
  #5  
Old 05-24-2005, 10:39 AM
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Default RE: chugging and back firing

ORIGINAL: billnourse

Plugs, vaccum leak.

Regards,

Bill
Yup. Had similar behavior with an intake leak.
 
  #6  
Old 05-25-2005, 12:05 PM
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Default RE: chugging and back firing

Good advice from above, one other thing is you might have a little water and or trash in the carb, sometimes when you don't have a full tank of fuel and you let the bike sit out in hot sunshine during the day and then it cools down like it did in Myrtle you can get condensation in the tank. If you have a little water in the float bowl the vaccum as you accelerate will suck it out and the engine will run rough but clear out, but if you have a lot of water in the float bowl it's clean out time. Also like previous mentioned you might have a plug that was trying to foul. Like Terry and the others said if it's still not running properly change plugs, do a intake vacuum leak test and go from there. You can do a scearch on intake leaks as this has been discussed several times before.

Let us know what you find out.

John TN
 
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