04 softail missing under partial load
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6th Gear
Joined: Feb 2006
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04 softail missing under partial load
recently picked up a used 04 softail standard, it's carburated and has 1100 miles on it. The day I picked it up it ran fine - put 200 miles on it that day, mixture of city, freeway, and 2 lane highway. The very next day it had a pronounced miss in 4th gear @ 40mph (no tach, and this is my first Harley, so I'm guessing that it was turning about 2000 rpm). It would do it in other gears as well - always at about the same rpm.
Took it to the local HD dealer, and they put a stage 1 kit in it - P.O. had installed a set of Yaffee short pipes, but didn't rejet the carb, or change the air box. This helped, but it is still missing. However, if I leave the choke out about 1/3, I don't have the problem, which makes me think it is still running lean. I attempted to do the propane sniff test to see if it was sucking air, but after a couple of minutes, I couldn't find any, and as it was 9pm at night, didn't want to upset the neighbors. Otherwise it runs fine, idles smooth, accellerates fine. I find it interesting that it is always at one specific RPM...anyone else experience this? Any suggestions?
Thanks!
Mike
Took it to the local HD dealer, and they put a stage 1 kit in it - P.O. had installed a set of Yaffee short pipes, but didn't rejet the carb, or change the air box. This helped, but it is still missing. However, if I leave the choke out about 1/3, I don't have the problem, which makes me think it is still running lean. I attempted to do the propane sniff test to see if it was sucking air, but after a couple of minutes, I couldn't find any, and as it was 9pm at night, didn't want to upset the neighbors. Otherwise it runs fine, idles smooth, accellerates fine. I find it interesting that it is always at one specific RPM...anyone else experience this? Any suggestions?
Thanks!
Mike
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Joined: Apr 2006
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RE: 04 softail missing under partial load
If you need to richen it up (Enricher out) then more than likely you have bad intake seals.....
This could be just the beginning signs for you, but I have seen it many times.....
What causes it is riders leaving the enricher on too long and too much.....
all that extra fuel starts to rot and burn the intake seals.....
This could be just the beginning signs for you, but I have seen it many times.....
What causes it is riders leaving the enricher on too long and too much.....
all that extra fuel starts to rot and burn the intake seals.....
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6th Gear
Joined: Feb 2006
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RE: 04 softail missing under partial load
Thanks for the advise .... The bike only had 740 miles on it when I bought it - do you think the damage could have happened this quickly?
Anyway to test for this without pulling the heads off?
Anyway to test for this without pulling the heads off?
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6th Gear
Joined: Feb 2006
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RE: 04 softail missing under partial load
one more piece to the puzzle.....road it to work yesterday, and was able to drive it all the way home with the choke completely off without it missing once. Temps yesterday were pretty warm - in the 80's. The miss gets more pronounced the cooler the temps....this makes me believe the mixture is lean; cool air = dense air = more fuel required for the proper ratio. Now I know why the guys at the HD dealer didn't catch it either - it was pretty warm the day they worked on it - probably didn't miss on them either.
This sound right to you folks? Thoughts?
This sound right to you folks? Thoughts?
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