Stalling During Slow down? - Star Motorcycle Forums: Star Raider, V-Max, V-Star, Road-Star Forum
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post #1 of 17 (permalink) Old 09-26-2011, 09:11 PM Thread Starter
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Stalling During Slow down?

It's only happened 3 times, but my bike has stalled during a slow down while coming to a stop. I have 3300 miles on the bike and it just started to happen and it only seems to happen with it's cold out below 60. Has anyone else experienced this?
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post #2 of 17 (permalink) Old 09-26-2011, 10:00 PM
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Stalling

Bullisok,

There is a stalling problem. Not sure, I believe it is mostly with early Liners. Maybe 06 and 07, but not sure it may be all. I have heard it talked about on early models mostly.

I have an 06, it has never stalled unless I did something wrong. I have heard the engine slow down to the point I thought it might stall, but it did not. In a nut shell there is no idle adjustment. The idle speed is controled electronicly using an idle by pass. One theory is if you let off on the throttle but the clutch is holding engine speed above idle the controler tries to slow the engine. You pull in the clutch, it dies.

I don't do much engine braking. Maybe that is why I have never had the problem. By the time my speed gets down to near idle I have pulled in the clutch and am using the front and rear brake.

Check your clutch switch. If it is not working the problem will be frequent. Here is a link to a article and a possible cure. I know of a couple that it did not work but worth a try.

http://www.fxstein.com/blog/index.ph...Id=47&blogId=1

Dave
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post #3 of 17 (permalink) Old 09-26-2011, 10:10 PM Thread Starter
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Thanks for the info and read... It has only happened a couple times as I said. It was in cold weather... You might be right I might be leaving the clutch engaged and coming to too much of a slow down and then pulling the clutch... I will have to pay more attention and see the next time it happens....
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post #4 of 17 (permalink) Old 09-27-2011, 09:52 AM
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There is a lot about this problem on other forums and it seems to be pointing to an ECU problem. Now I'm just guessing, but maybe the EFI system goes into open loop condition below a certain rpm. You know, if its not getting information from the O2 sensor, then it has to use old information. I'm no expert and it would be nice to here from one about this. It would also explain why the FXstien mod would work.
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post #5 of 17 (permalink) Old 09-27-2011, 07:16 PM
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what ive read

Quote:
Originally Posted by alpha-dog View Post
There is a lot about this problem on other forums and it seems to be pointing to an ECU problem. Now I'm just guessing, but maybe the EFI system goes into open loop condition below a certain rpm. You know, if its not getting information from the O2 sensor, then it has to use old information. I'm no expert and it would be nice to here from one about this. It would also explain why the FXstien mod would work.
i read somewhere that if you have the throttle open slightly so the motor is below 1500 rpm that the computer see's this as the idle is to high and it cuts the throttle more in an effort to reduce the idle speed. when you let off the throttle the rest of the way the ecu can't react quickly enough and the bike will die. i did this as a test and my bike died. i try to make sure the throttle is all the way closed when coming to a stop. so far so good.
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post #6 of 17 (permalink) Old 09-27-2011, 07:51 PM
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I had this happen once, spent the next hour trying to get it to repeat. Never got it to do it again. I don't think the air temperature is a factor as it seems to happen during hot, medium and cold temperatures. It was just about 80 degrees when mine went flat line on me. I've read where this has happened with very high teperatures and just recently during cold weather.



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post #7 of 17 (permalink) Old 09-27-2011, 09:24 PM
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i read somewhere that if you have the throttle open slightly so the motor is below 1500 rpm that the computer see's this as the idle is to high and it cuts the throttle more in an effort to reduce the idle speed. when you let off the throttle the rest of the way the ecu can't react quickly enough and the bike will die
That sounds interesting. I'll try it on my bike.
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post #8 of 17 (permalink) Old 07-08-2012, 11:40 AM Thread Starter
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Well this is an Issue with my Bike does not do it all the time. During Slow down. I'm sure it is a Low idol issue. Someone told me there is a way to bump it up slightly to stop it. Looking for the answer on here.. If someone has the link please send it to me.
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post #9 of 17 (permalink) Old 07-08-2012, 11:47 AM
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Originally Posted by bullisok View Post
Well this is an Issue with my Bike does not do it all the time. During Slow down. I'm sure it is a Low idol issue. Someone told me there is a way to bump it up slightly to stop it. Looking for the answer on here.. If someone has the link please send it to me.
Had this happened more than the one time since owning mine, I'd have looked into it deeper. The Warrior was an easy finger knob to bump up the idle RPM's but the Liner's are a bit more complicated. I'll see if I can find it again and post the link...it involved getting the ECU to "learn" a new idle RPM,,,,"tricking" it seems like a better word than "learning".



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post #10 of 17 (permalink) Old 07-08-2012, 11:50 AM Thread Starter
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Here is the best solution I have found has anyone tired this???

http://www.fxstein.com/blog/index.ph...Id=47&blogId=1
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