Bike wont start when hot - Yamaha R6 Forum: YZF-R6 Forums
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post #1 of 21 (permalink) Old 10-29-2011, 07:20 PM Thread Starter
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Join Date: Oct 2011
Location: Toronto, Ontario
Posts: 239
Bike: '99 R6
Bike wont start when hot

Is this usually a starter problem when the bike wont start when HOT?? even when I wide open the throttle it still wont start. Only if I accidentally stall the bike, it will be able to start it back up with a slight throttle.

If I let it sit until it has cooled it will start no problem(always with a slight throttle twist).

dirty starter? clogged carbs? valve?

i have checked the battery,
12.94 when stationary,
12.33 idling,
13.6-7, max 13.9 when going over 5000rpm.

so a bad battery or rectifier is out of the question

i have no idea whats wrong..

99' Yamaha R6, FIAT fairing.

Last edited by elton_t; 10-29-2011 at 07:23 PM.
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post #2 of 21 (permalink) Old 10-29-2011, 11:10 PM
WhoDat want some of Da R6
 
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Location: South Louisiana
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Bike: 2006 YZF-R6
Re: Bike wont start when hot

Even though the battery is fully charged it could be a bad battery just a thought. I am having a problem with mine starting and i think it is the battery i hope at least

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post #3 of 21 (permalink) Old 10-29-2011, 11:11 PM
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Bike: 08 R6 Blue, 10 FZ16 Red
Re: Bike wont start when hot

how hot was it ? the temp.

1. 2007 Honda Tiger Silver (Asia)
2. 2008 YZF-R6 Blue
Current Mods:
- Jardine GP1 Slip on
- 6000K HID
- TRACKLINE No Cut Frame Slider
- Power Stand Fender eliminator
- Super Bright LED Turn signal on both side of my Fairings
Future Mods:
- Ohlins steering Damper Kit
3. 2010 Yamaha BYSON (FZ16) Maple Red
Current Mods:
-TRD Full Exhaust System

<img src=http://i98.photobucket.com/albums/l264/vickietjia/comedy/rkellywtfio8.gif border=0 alt= />
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post #4 of 21 (permalink) Old 10-29-2011, 11:12 PM Thread Starter
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Location: Toronto, Ontario
Posts: 239
Bike: '99 R6
Re: Bike wont start when hot

roughly within 87-107C (190F-224F)

99' Yamaha R6, FIAT fairing.
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post #5 of 21 (permalink) Old 10-29-2011, 11:15 PM
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Bike: 08 R6 Blue, 10 FZ16 Red
Re: Bike wont start when hot

Quote:
Originally Posted by elton_t View Post
roughly within 87-107C (190F-224F)
190F - 224F is high, for the temperature. did you check the Coolant ?

1. 2007 Honda Tiger Silver (Asia)
2. 2008 YZF-R6 Blue
Current Mods:
- Jardine GP1 Slip on
- 6000K HID
- TRACKLINE No Cut Frame Slider
- Power Stand Fender eliminator
- Super Bright LED Turn signal on both side of my Fairings
Future Mods:
- Ohlins steering Damper Kit
3. 2010 Yamaha BYSON (FZ16) Maple Red
Current Mods:
-TRD Full Exhaust System

<img src=http://i98.photobucket.com/albums/l264/vickietjia/comedy/rkellywtfio8.gif border=0 alt= />
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post #6 of 21 (permalink) Old 10-29-2011, 11:15 PM Thread Starter
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Join Date: Oct 2011
Location: Toronto, Ontario
Posts: 239
Bike: '99 R6
Re: Bike wont start when hot

Quote:
Originally Posted by WhoDatR6 View Post
Even though the battery is fully charged it could be a bad battery just a thought. I am having a problem with mine starting and i think it is the battery i hope at least
bad battery? how do you see it? all voltages seem fine, what's wrong?

99' Yamaha R6, FIAT fairing.
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post #7 of 21 (permalink) Old 10-29-2011, 11:17 PM Thread Starter
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Join Date: Oct 2011
Location: Toronto, Ontario
Posts: 239
Bike: '99 R6
Re: Bike wont start when hot

Quote:
Originally Posted by automaniac View Post
190F - 224F is high, for the temperature. did you check the Coolant ?
i just did coolant flush last week with engine-ice. it should still start even at 224F, it never goes higher than that.

99' Yamaha R6, FIAT fairing.
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post #8 of 21 (permalink) Old 10-29-2011, 11:18 PM
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Join Date: Mar 2009
Location: Los Angeles, CA
Posts: 554
Bike: 08 R6 Blue, 10 FZ16 Red
Re: Bike wont start when hot

hmm

1. 2007 Honda Tiger Silver (Asia)
2. 2008 YZF-R6 Blue
Current Mods:
- Jardine GP1 Slip on
- 6000K HID
- TRACKLINE No Cut Frame Slider
- Power Stand Fender eliminator
- Super Bright LED Turn signal on both side of my Fairings
Future Mods:
- Ohlins steering Damper Kit
3. 2010 Yamaha BYSON (FZ16) Maple Red
Current Mods:
-TRD Full Exhaust System

<img src=http://i98.photobucket.com/albums/l264/vickietjia/comedy/rkellywtfio8.gif border=0 alt= />
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post #9 of 21 (permalink) Old 10-30-2011, 12:07 AM Thread Starter
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Join Date: Oct 2011
Location: Toronto, Ontario
Posts: 239
Bike: '99 R6
Re: Bike wont start when hot

Ok.. i just went ahead and try to start it again. it started instantly. wth?

the colder my bike is, the more likely it seems to start! only when it gets warm, so whats the deal here?

99' Yamaha R6, FIAT fairing.
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post #10 of 21 (permalink) Old 10-30-2011, 01:53 AM
Just made this great wheelie.. did you see it?!
 
Join Date: Mar 2011
Location: Birmingham UK
Posts: 80
Bike: r6, fjr
Re: Bike wont start when hot

if it spins over fine?

when were your valve clearences last checked?

long shot i know and the last thing to look at but if the clearances are a bit tight cold, when hot it can hold the valves open and make starting a pig.


hope this helps


polar
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