Sporster
HDF Community Team
Joined: Dec 2011
Posts: 8,600
Likes: 4,032
From: San Diego, CA
If you have fuel, compression, and spark, there is no reason it should not run. Are you sure you are getting fuel? Are you sure you have spark? I'm going to assume you have compression, at least enough to run. Is your RUN/Stop switch set to RUN?
John
John
Thread Starter
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Novice
Joined: Dec 2018
Posts: 17
Likes: 0
From: CA
I used my tester for the slack it plugs in between the wire and plug has spark
I can see fuel spraying when I remove the filter to look
the bike is cranking (switch is in the run position)
Im just as confused as you are I have fuel spark compression and dont know why it wont start
I can see fuel spraying when I remove the filter to look
the bike is cranking (switch is in the run position)
Im just as confused as you are I have fuel spark compression and dont know why it wont start
HDF Community Team
Joined: Dec 2011
Posts: 8,600
Likes: 4,032
From: San Diego, CA
So, it just shut down going uphill? And it has spark and gas? Weird. Someone will have some ideas. Meanwhile, might as well check for a loose wire or broken ground wires. 2002 should not be that complicated. Check the fusebox and all fuses for corrosion. My 1991 has 4 circuit breakers, but I think you may have fuses, IDK.
If you have a multimeter you might check the resistance numbers through the coil(s). I think you have a Sporster S with dual plug heads, not real common on the forum.
I worked on a buddy's bike that he shut off one day, and it never started again. I tested every circuit and we replaced the stator/CDI trigger and coil, and swapped a good CDI from another bike. Those were the only three possible components, and the damn thing still wouldn't start. Luckily, he sold it to someone who said they got it running for a minute, then it shut down and he could not get it to run again. Your issue won't be that bad. I'd still love to know what happened on that XT225, total mystery.
John
If you have a multimeter you might check the resistance numbers through the coil(s). I think you have a Sporster S with dual plug heads, not real common on the forum.
I worked on a buddy's bike that he shut off one day, and it never started again. I tested every circuit and we replaced the stator/CDI trigger and coil, and swapped a good CDI from another bike. Those were the only three possible components, and the damn thing still wouldn't start. Luckily, he sold it to someone who said they got it running for a minute, then it shut down and he could not get it to run again. Your issue won't be that bad. I'd still love to know what happened on that XT225, total mystery.
John
Last edited by John Harper; Oct 17, 2022 at 06:36 PM.
Seasoned HDF Member
Joined: Aug 2006
Posts: 24,540
Likes: 30,870
From: Pennsylvania
Not sure if this is the right spot
I have a 2000 sporster 1200 4 spark plugs
my bike shut off while riding due to low oil never started back up. Added oil and still doesnt start Im lost on what could it be.
the bike cranks starter works just doesnt fire up
battery is brand new. Spark plugs brand new
I have a 2000 sporster 1200 4 spark plugs
my bike shut off while riding due to low oil never started back up. Added oil and still doesnt start Im lost on what could it be.
the bike cranks starter works just doesnt fire up
battery is brand new. Spark plugs brand new
I used my tester for the slack it plugs in between the wire and plug has spark
I can see fuel spraying when I remove the filter to look
the bike is cranking (switch is in the run position)
Im just as confused as you are I have fuel spark compression and dont know why it wont start
I can see fuel spraying when I remove the filter to look
the bike is cranking (switch is in the run position)
Im just as confused as you are I have fuel spark compression and dont know why it wont start
A picture of the motorcycle would be useful to confirm the model.
Once you confirm the specific model you have you can begin troubleshooting the issue as the process depends on whether you have a Sport model with 4 plugs or not as the ignition systems are different.
It almost sounds like a timing issue; however, you may want to check all the wiring connections in and around your carb and MAP sensor (if you have a Sport Model).
Useful information on the differences between the Sport & non-Sport models here: http://sportsterpedia.com/doku.php/t...k:evo:engctl01
Seasoned HDF Member
Joined: Sep 2018
Posts: 6,063
Likes: 1,822
From: Kalifornia
If you tested spark at both cylinders, and had spark, then pull the plugs, and inspect with an ohm meter. If that checks ok, then try squirting starter fluid in the carb, with butterfly wide open. Just about 1/4-1/2 second should be plenty. Then crank it over. If it starts, fuel is getting to the carb, but not the cylinders. If it was running rough before, you might have bad vacuum leak. Might not be just one issue.
Seasoned HDF Member
Joined: Sep 2018
Posts: 6,063
Likes: 1,822
From: Kalifornia
I used my tester for the slack it plugs in between the wire and plug has spark
I can see fuel spraying when I remove the filter to look
the bike is cranking (switch is in the run position)
Im just as confused as you are I have fuel spark compression and dont know why it wont start
I can see fuel spraying when I remove the filter to look
the bike is cranking (switch is in the run position)
Im just as confused as you are I have fuel spark compression and dont know why it wont start
Seasoned HDF Member
Joined: Sep 2018
Posts: 6,063
Likes: 1,822
From: Kalifornia
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HDF Community Team
Joined: Dec 2011
Posts: 8,600
Likes: 4,032
From: San Diego, CA
It almost sounds like a timing issue; however, you may want to check all the wiring connections in and around your carb and MAP sensor (if you have a Sport Model).
Useful information on the differences between the Sport & non-Sport models here: http://sportsterpedia.com/doku.php/t...k:evo:engctl01
John
