`94 FXDS has an Issue, Your Help; Appreciated
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Joined: Oct 2016
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From: Santa Barbara, California
`94 FXDS has an Issue, Your Help; Appreciated
First I should say that I`m not a motorhead. I really want to be, but not even close. I have tried everything that I know to fix it and have spent almost a week on the internet a few hours each day trying to diagnose and resolve the issue myself to no avail. I realize that you guys have lives and have much more important things to do than to help me. By knowing this, I assure you that your help will not be taken for granted and your time and efforts will be greatly appreciated.
The bike cold starts right up without using the enrichener, just a couple pumps on the throttle, hit the starter. Idles smooth, throttle very responsive, ride a mile or two runs strong then suddenly I`ll feel a little sputter or two then it starts rapidly losing power and starts repeatably surging and backfiring out of the carburetor. Now here`s the part that to me seems most odd, wait a few seconds and it will fire right back up and runs great for a mile or two then the process repeats itself.
I haven`t really done much, but I cleaned the carburetor, replaced the enrichener cable and flushed the tank. I thought that the tank may be pulling a vacuum stopping the gas flow so I Loosened the gas cap to see if that helped, no, none of this worked.
I used a bungee cord to tether my phone to my rear view mirror and recorded a couple instances of my problem. The recording is less than three minutes long and I know it will tell you more about what`s happening with my bike than I can.
Have any thoughts, suggestions, advice etc..? I would bet that I have neglected to include some important information that would help you solve the problem. Please let me know what you need and I`ll get the information to you asap.
Rod Walsh
The bike cold starts right up without using the enrichener, just a couple pumps on the throttle, hit the starter. Idles smooth, throttle very responsive, ride a mile or two runs strong then suddenly I`ll feel a little sputter or two then it starts rapidly losing power and starts repeatably surging and backfiring out of the carburetor. Now here`s the part that to me seems most odd, wait a few seconds and it will fire right back up and runs great for a mile or two then the process repeats itself.
I haven`t really done much, but I cleaned the carburetor, replaced the enrichener cable and flushed the tank. I thought that the tank may be pulling a vacuum stopping the gas flow so I Loosened the gas cap to see if that helped, no, none of this worked.
I used a bungee cord to tether my phone to my rear view mirror and recorded a couple instances of my problem. The recording is less than three minutes long and I know it will tell you more about what`s happening with my bike than I can.
Rod Walsh
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From: deland,florida
if its got a OEM vacuum petcock,that would be my first place to look.theres a line that comes off the manifold,tee`s and goes to the VOES and petcock,make sure their all hooked up & not cracked.that being said,it still could be the diaphragm in the petcock itself,ide just replace it with a aftermarket unit (don't forget to plug the line)
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Joined: Oct 2016
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From: Santa Barbara, California
prodrag:
I don`t know if the petcock is OEM, but I do have a new one that I can install. Isn`t the VOES for regulatiing timing?
What do you mean by "don't forget to plug the line", what line and where do I plug it?
Hillsidecycle.com:
I`ll put a spark plug in my pocket and when it happens pull off a plug wire, put the plug into the wire and place the threads on the cylinder head then hit the starter and see if there is any spark. I`m thinking is that it will spark because I can restart the bike immediately after having to shut it down.
Thanks guys for all the advice. I`ll try them all and keep you posted.
Rod
I don`t know if the petcock is OEM, but I do have a new one that I can install. Isn`t the VOES for regulatiing timing?
What do you mean by "don't forget to plug the line", what line and where do I plug it?
Hillsidecycle.com:
I`ll put a spark plug in my pocket and when it happens pull off a plug wire, put the plug into the wire and place the threads on the cylinder head then hit the starter and see if there is any spark. I`m thinking is that it will spark because I can restart the bike immediately after having to shut it down.
Thanks guys for all the advice. I`ll try them all and keep you posted.
Rod
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Intermediate
Joined: Oct 2016
Posts: 29
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From: Santa Barbara, California
Success!! I pulled the petcock, it looked like it had been through a wood chipper. I installed the new one and difference in gas flow was unbelievable. I feel pretty dumb, I flushed the tank, replaced the inline filter and didn`t even think about inspecting the petcock.
I rode about 30 miles up the Pacific Coast Hwy 1 and it ran like a dream. I`m confident the problem is resolved, but knock on wood.....
Besides feeling stupid, I feel bad for wasting your time on this, what should not have even been an issue.
I appreciate everyone`s time and effort spent trying to diagnose my problem. It`s refreshing seeing an online community coming together to help a member in need. I now have a greater respect for this forum and forums in general. I also have a better understanding of what membership really means.
Long days and pleasant nights,
Rod Walsh
I rode about 30 miles up the Pacific Coast Hwy 1 and it ran like a dream. I`m confident the problem is resolved, but knock on wood.....
Besides feeling stupid, I feel bad for wasting your time on this, what should not have even been an issue.
I appreciate everyone`s time and effort spent trying to diagnose my problem. It`s refreshing seeing an online community coming together to help a member in need. I now have a greater respect for this forum and forums in general. I also have a better understanding of what membership really means.
Long days and pleasant nights,
Rod Walsh
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