2001 1200 won't start
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Stage III
Joined: May 2018
Posts: 3
Likes: 0
From: washington
2001 1200 won't start
Here is a little bit of History trouble with the bike, recently the bike would cut out just stopped running while riding and so after Maybe I let it sit for 30 minutes it would start back up again this has happened three times.
so I thought maybe it's the carb that is dirty and it wasn't getting any fuel so I took the car off and luckily I had a Mikuni hsr42 that I got from a friend so I decided to put that on instead. So after the setup the bike did start up but ran like crap because wrong jet sizes.
so I ordered new jet sizes put those in the carb and then the bike for some reason would not start up again, so I replaced the old rectifier with a new chromed drag specialty rectifier, and still it would not start, so I removed the plug wires put some new plugs into the plug wires and positioned them on the fins of the motor and notice I was not getting any Spark. So I checked the coil with a multimeter it was only 2.3 ohms. 3 ohms which is standard for the Sportster but it was also only 10,000k ohms which is below standard for that coil.
so I replaced the coil and this time I'm getting spark but for some reason the bike still would not start the only thing that I haven't replaced is the ignition module, this bike has about 90,000 miles on it so I'm wondering could it be the ignition module, I even checked stupid things like the bank angle sensor which I seen on YouTube could prevent the bite from starting but it was okay I took it out shook it replaced it and plugged it back in with the same results. I know the bike is getting fuel because I'm running a see-through fuel filter with clear hoses running to the carburetor and I had no there is gas in the float Bowl also. One YouTuber suggested to check the crank positioning sensor which I have yet to do.
so at this point the only two things left to check or change is the ignition module and or the crank positioning sensor.
comments are welcome and advice.
so I thought maybe it's the carb that is dirty and it wasn't getting any fuel so I took the car off and luckily I had a Mikuni hsr42 that I got from a friend so I decided to put that on instead. So after the setup the bike did start up but ran like crap because wrong jet sizes.
so I ordered new jet sizes put those in the carb and then the bike for some reason would not start up again, so I replaced the old rectifier with a new chromed drag specialty rectifier, and still it would not start, so I removed the plug wires put some new plugs into the plug wires and positioned them on the fins of the motor and notice I was not getting any Spark. So I checked the coil with a multimeter it was only 2.3 ohms. 3 ohms which is standard for the Sportster but it was also only 10,000k ohms which is below standard for that coil.
so I replaced the coil and this time I'm getting spark but for some reason the bike still would not start the only thing that I haven't replaced is the ignition module, this bike has about 90,000 miles on it so I'm wondering could it be the ignition module, I even checked stupid things like the bank angle sensor which I seen on YouTube could prevent the bite from starting but it was okay I took it out shook it replaced it and plugged it back in with the same results. I know the bike is getting fuel because I'm running a see-through fuel filter with clear hoses running to the carburetor and I had no there is gas in the float Bowl also. One YouTuber suggested to check the crank positioning sensor which I have yet to do.
so at this point the only two things left to check or change is the ignition module and or the crank positioning sensor.
comments are welcome and advice.
Last edited by Lysander Hubbard; Jun 1, 2024 at 12:23 AM.
HDF Community Team
Joined: Aug 2019
Posts: 1,847
Likes: 1,947
From: Santa Ana, CA
With the symptoms you describe I would say yes, the ignition module could very easily be the culprit. With 90k miles on the bike I would be really impressed if the original ignition module is still in there.
HDF Community Team
Joined: Jan 2010
Posts: 1,263
Likes: 468
From: shore of Gitche Gumee
I cast my vote for faulty ignition module also.
HDF Community Team
Joined: Dec 2011
Posts: 8,585
Likes: 4,019
From: San Diego, CA
The 1998-2003 modules were prone to heat failure from what I've read. Maybe it was 1998-2001, but your year is right in that range.
Get rid of that external fuel filter too, not needed if your petcock strainer is intact.
John
Get rid of that external fuel filter too, not needed if your petcock strainer is intact.
John
Last edited by John Harper; Jun 1, 2024 at 07:57 AM.
Seasoned HDF Member
Joined: Mar 2021
Posts: 18,430
Likes: 3,713
From: backwoods
When it dies for 30 minutes, it still cranks and lights are on? If not maybe main breaker
Bike is 20 years old, 90k miles, I would replace some things for sake of maintenance. Big twin ignition modules are obsolete from Harley for 2001.
Coil getting hot is definitely something I would think about. I've had bad coils, that ohmed fine. My 2001 big twin has gone through 2.
Bike is 20 years old, 90k miles, I would replace some things for sake of maintenance. Big twin ignition modules are obsolete from Harley for 2001.
Coil getting hot is definitely something I would think about. I've had bad coils, that ohmed fine. My 2001 big twin has gone through 2.
Road Captain
Joined: Mar 2022
Posts: 537
Likes: 247
From: Wisconsin
I believe it was earlier than that, a bunch of green goop melted out mine....
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