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Main Area => General GS500 Discussion => Topic started by: frylockjim on November 07, 2013, 03:49:58 PM

Title: Idle dying and interesting theory...
Post by: frylockjim on November 07, 2013, 03:49:58 PM
So i have been having a problem with my 06 GS500f having trouble idling and having trouble starting up. I already made a previous thread about this because i had tight exhaust valves. I originally thought that it was because of the valves that it was having problems, and i also thought that it had a "hanging" exhaust valve because when i measured the clearance, it was too tight for my gauge to read and the bucket wouldnt move. I recently discovered that although the bucket wont move, the shim still does with the cams on so i took off the cams and discovered that the buckets on the exhaust wont rotate, but would still go up and down. So...my exhaust valves are tight, but not hanging. I then had a theory that i developed in my Auto electrics class in school that maybe its due to the battery being lead acid and maybe its not getting enough power in a cold startup. I mostly believed this because in the summer, i had no problems with my bike but now that its cooling down, its making the battery too cold to produce the power needed. I only have trouble starting it up when its been sitting in the cold too long and i think it may be because of my battery. I have the OEM battery in my bike currently, but im thinking of switching to AGM type since it performs better in the cold. I havent been able to check the battery voltage in the cold though because i dont have the right tools. Any thoughts on this predicament??
Title: Re: Idle dying and interesting theory...
Post by: The Buddha on November 07, 2013, 04:18:22 PM
Those sticking buckets - they can get stuck open and make the valve get hit by the other valve.
Maybe your battery is affected by cold weather. Its possible.
Cool.
Buddha.
Title: Re: Idle dying and interesting theory...
Post by: Badot on November 07, 2013, 04:36:19 PM
Simple way to figure it out. Leave the bike outside, take the battery inside. Go outside on a nice cold day, hook the battery up, and try to start it.
Title: Re: Idle dying and interesting theory...
Post by: Kiwingenuity on November 07, 2013, 04:48:03 PM
Quote from: Badot on November 07, 2013, 04:36:19 PM
Simple way to figure it out. Leave the bike outside, take the battery inside. Go outside on a nice cold day, hook the battery up, and try to start it.

This would be the easiest

BTW, if I get time this weekend I may do a full run down on "normal numbers" for the electrics and see if I can experiment with some load resistors and see what the motor does.

I know from experience that no battery = POS idle, so a poor battery would likely also give you a similar result.
Title: Re: Idle dying and interesting theory...
Post by: frylockjim on November 07, 2013, 08:46:16 PM
Quote from: Kiwingenuity on November 07, 2013, 04:48:03 PM
Quote from: Badot on November 07, 2013, 04:36:19 PM
Simple way to figure it out. Leave the bike outside, take the battery inside. Go outside on a nice cold day, hook the battery up, and try to start it.

This would be the easiest

BTW, if I get time this weekend I may do a full run down on "normal numbers" for the electrics and see if I can experiment with some load resistors and see what the motor does.

I know from experience that no battery = POS idle, so a poor battery would likely also give you a similar result.
Yeah poor battery =poor idle is exactly what I learned in class. I'm also guessing that the reason why it dies at a stop when I slow down is because the wind is cooling it down too much. Just another theory of mine. I've noticed that a lot of people have been having issues with that but idk if they are using an oem battery. I'm trying to figure out how to solve these issues so I don't have them anymore and also so I can post it in the troubleshooting section of the forum to help others.