1 start, idles, revs, then dies. Wed Apr 27, 2016 7:31 pm
desperado
active member
Hey guys
I tried my best to search around the forum for thoughts on this subject because I'm sure something similar has been covered before, so I apologize if I'm just missing some valuable threads on the topic.
If the bike is cold, I can start it up and let it idle. I can apply throttle and it seems to be an incredibly happy, normal brick. After about 10-15 minutes of idle with a few intermittent revs to the throttle, the bike will die.
From there, the issue gets progressively worse in what I have broken into 3 stages. The first stage is what I described above. It then gets a level where the bike will idle but any attempts to apply throttle and the bike will cut out. After a few moments of that, we get to stage 3. The only noise I can hear is starter motor and the engine will never actually start.
I've checked electrical connections into the tank and onto the fuel pump itself. I also tried it with the gas cap open to be sure it wasn't a venting issue. From various searching around the web and the forum, I've come up with a few other possible culprits: Hall effect sensor or starter motor seem the most likely. I thought about starter/kill switch but it seems less likely to me because of the progressive nature of the issue.
Anything else I'm missing?
I first encountered the issue on a recent long trip. I was up in Washington/Idaho and had ridden the bike for about 4 hours in the morning. I stopped in Spokane and explored the city a bit while stopping and starting the bike a handful of times. I then crossed into Idaho and stopped in Couer d'Alene for lunch, about 30 minutes from Spokane. As I left, Couer d'Alene, after the bike sat for about an hour, I made it about 4 miles and the bike died. A series of other adventures and tons of help from friends got me home to Los Angeles and now I'm trying to sort out my issues.
Any and all help/thoughts/links/punches-in-the-face will be appreciated.
I tried my best to search around the forum for thoughts on this subject because I'm sure something similar has been covered before, so I apologize if I'm just missing some valuable threads on the topic.
If the bike is cold, I can start it up and let it idle. I can apply throttle and it seems to be an incredibly happy, normal brick. After about 10-15 minutes of idle with a few intermittent revs to the throttle, the bike will die.
From there, the issue gets progressively worse in what I have broken into 3 stages. The first stage is what I described above. It then gets a level where the bike will idle but any attempts to apply throttle and the bike will cut out. After a few moments of that, we get to stage 3. The only noise I can hear is starter motor and the engine will never actually start.
I've checked electrical connections into the tank and onto the fuel pump itself. I also tried it with the gas cap open to be sure it wasn't a venting issue. From various searching around the web and the forum, I've come up with a few other possible culprits: Hall effect sensor or starter motor seem the most likely. I thought about starter/kill switch but it seems less likely to me because of the progressive nature of the issue.
Anything else I'm missing?
I first encountered the issue on a recent long trip. I was up in Washington/Idaho and had ridden the bike for about 4 hours in the morning. I stopped in Spokane and explored the city a bit while stopping and starting the bike a handful of times. I then crossed into Idaho and stopped in Couer d'Alene for lunch, about 30 minutes from Spokane. As I left, Couer d'Alene, after the bike sat for about an hour, I made it about 4 miles and the bike died. A series of other adventures and tons of help from friends got me home to Los Angeles and now I'm trying to sort out my issues.
Any and all help/thoughts/links/punches-in-the-face will be appreciated.
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1985 K100RS
Los Angeles, Calif.