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bike idles but floods and dies
Posted: Mon Mar 19, 2007 9:23 am
by Kevin Angus
When I start the 94 KLR650 (5500 mile)it idles fine and the choke
works, after warming up as I increase the RPM the engine dies from
flooding (black smoke from the exhaust)
I took it to a local shop and after three weeks they said it was the
carb and wanted $500 to fix it, I picked up the bike and installed a
new carb but it does the same thing. Dies when I increase the RPM.
I tried searching the archive but the server keeps giving me a error
message.
Anyone have any idea where to start?
Thanks
The new carb was from England, has the air screw cap removed.
bike idles but floods and dies
Posted: Mon Mar 19, 2007 9:37 am
by Jud Jones
--- In
DSN_KLR650@yahoogroups.com, "Kevin Angus" wrote:
>
> When I start the 94 KLR650 (5500 mile)it idles fine and the choke
> works, after warming up as I increase the RPM the engine dies from
> flooding (black smoke from the exhaust)
> I took it to a local shop and after three weeks they said it was the
> carb and wanted $500 to fix it, I picked up the bike and installed a
> new carb but it does the same thing. Dies when I increase the RPM.
>
> I tried searching the archive but the server keeps giving me a error
> message.
> Anyone have any idea where to start?
> Thanks
>
> The new carb was from England, has the air screw cap removed.
>
How is the air filter? Any mice nesting in the airbox?
Is your battery charging?
bike idles but floods and dies
Posted: Tue Mar 20, 2007 5:27 pm
by Kevin Angus
I have tried posting to the message I started but nothing ever shows up!~
I measured the coil and found:
Coil + terminal to ground = 0.8 ohm the manual shows: 0.17~0.25 ohm
Plug lead to ground = 9K the manual shows: 3.2~4.8K ohm
Is my coil screwed? Does anyone have access to a coil that they can
check these measurements?
Thanks - I hope this message makes it, its my fourth try.
bike idles but floods and dies
Posted: Wed Mar 21, 2007 1:01 am
by Norm Keller
>I measured the coil and found:
>Coil + terminal to ground = 0.8 ohm the >manual shows: 0.17~0.25 ohm
>Plug lead to ground = 9K the manual shows: >3.2~4.8K ohm
>Is my coil screwed? Does anyone have >access to a coil that they can
>check these measurements?
I'll try to find time to pull the right shroud tomorrow night and check.
Norm
[Non-text portions of this message have been removed]
bike idles but floods and dies
Posted: Wed Mar 28, 2007 9:05 pm
by Kevin Angus
The flooding I speak of is black smoke, way rich running, if you back off
the gas the engine starts to idle and clears up. It acts like the timing
does not advance or there is hi-voltage breakdown in the coil, as the RPM
increases the coil shorts out internally. This effect happened on my old
carb and my new one, all the gas lines are new, the fuel filter has been
removed, the tank has been replaced with a small plastic tank for testing.
The valve clearance shims were adjusted.
Not an easy problem.
_____
From: Taralynn [mailto:taralynnbernard@...] On Behalf Of AT
Sent: Thursday, March 22, 2007 12:36 AM
To: kangus@...
Subject: Re:Bike idles but floods and dies
I feel you are barking up the wrong tree here. The fitting where the fuel
inlet line goes into the carb, is pressed into a rubber O ring. What will
happen, a small piece of this gets torn off and can work loose. It will be
just large enough it won't completely pass the needle seat for the float
causing it to stick open, flooding the carb. Remove the fitting, get this
piece(s) out (using air, a straight pin, anything) and it will be fine. Been
there, done that, problem solved... Why are you checking the coil if it is
flooding?
-Andy
[Non-text portions of this message have been removed]
bike idles but floods and dies
Posted: Wed Mar 28, 2007 9:07 pm
by Kevin Angus
The flooding I speak of is black smoke, way rich running, if you back off
the gas the engine starts to idle and clears up. It acts like the timing
does not advance or there is hi-voltage breakdown in the coil, as the RPM
increases the coil shorts out internally. This effect happened on my old
carb and my new one, all the gas lines are new, the fuel filter has been
removed, the tank has been replaced with a small plastic tank for testing.
The valve clearance shims were adjusted.
Not an easy problem.
_____
From: Taralynn [mailto:taralynnbernard@...] On Behalf Of AT
Sent: Thursday, March 22, 2007 12:36 AM
To: kangus@...
Subject: Re:Bike idles but floods and dies
I feel you are barking up the wrong tree here. The fitting where the fuel
inlet line goes into the carb, is pressed into a rubber O ring. What will
happen, a small piece of this gets torn off and can work loose. It will be
just large enough it won't completely pass the needle seat for the float
causing it to stick open, flooding the carb. Remove the fitting, get this
piece(s) out (using air, a straight pin, anything) and it will be fine. Been
there, done that, problem solved... Why are you checking the coil if it is
flooding?
-Andy
[Non-text portions of this message have been removed]
bike idles but floods and dies
Posted: Wed Mar 28, 2007 9:13 pm
by Kevin Angus
The flooding I speak of is black smoke, way rich running, if you back off
the gas the engine starts to idle and clears up. It acts like the timing
does not advance or there is hi-voltage breakdown in the coil, as the RPM
increases the coil shorts out internally. This effect happened on my old
carb and my new one, all the gas lines are new, the fuel filter has been
removed, the tank has been replaced with a small plastic tank for testing.
The valve clearance shims were adjusted.
Not an easy problem.
_____
From: Taralynn [mailto:taralynnbernard@...] On Behalf Of AT
Sent: Thursday, March 22, 2007 12:36 AM
To: kangus@...
Subject: Re:Bike idles but floods and dies
I feel you are barking up the wrong tree here. The fitting where the fuel
inlet line goes into the carb, is pressed into a rubber O ring. What will
happen, a small piece of this gets torn off and can work loose. It will be
just large enough it won't completely pass the needle seat for the float
causing it to stick open, flooding the carb. Remove the fitting, get this
piece(s) out (using air, a straight pin, anything) and it will be fine. Been
there, done that, problem solved... Why are you checking the coil if it is
flooding?
-Andy
[Non-text portions of this message have been removed]
bike idles but floods and dies
Posted: Wed Mar 28, 2007 9:14 pm
by Kevin Angus
The flooding I speak of is black smoke, way rich running, if you back off
the gas the engine starts to idle and clears up. It acts like the timing
does not advance or there is hi-voltage breakdown in the coil, as the RPM
increases the coil shorts out internally. This effect happened on my old
carb and my new one, all the gas lines are new, the fuel filter has been
removed, the tank has been replaced with a small plastic tank for testing.
The valve clearance shims were adjusted.
Not an easy problem.
_____
From: Taralynn [mailto:taralynnbernard@...] On Behalf Of AT
Sent: Thursday, March 22, 2007 12:36 AM
To: kangus@...
Subject: Re:Bike idles but floods and dies
I feel you are barking up the wrong tree here. The fitting where the fuel
inlet line goes into the carb, is pressed into a rubber O ring. What will
happen, a small piece of this gets torn off and can work loose. It will be
just large enough it won't completely pass the needle seat for the float
causing it to stick open, flooding the carb. Remove the fitting, get this
piece(s) out (using air, a straight pin, anything) and it will be fine. Been
there, done that, problem solved... Why are you checking the coil if it is
flooding?
-Andy
[Non-text portions of this message have been removed]
bike idles but floods and dies
Posted: Wed Mar 28, 2007 9:38 pm
by Kevin Angus
The flooding I speak of is black smoke, way rich running, if you back off
the gas the engine starts to idle and clears up. It acts like the timing
does not advance or there is hi-voltage breakdown in the coil, as the RPM
increases the coil shorts out internally. This effect happened on my old
carb and my new one, all the gas lines are new, the fuel filter has been
removed, the tank has been replaced with a small plastic tank for testing.
The valve clearance shims were adjusted.
Not an easy problem.
_____
From: Taralynn [mailto:taralynnbernard@...] On Behalf Of AT
Sent: Thursday, March 22, 2007 12:36 AM
To: kangus@...
Subject: Re:Bike idles but floods and dies
I feel you are barking up the wrong tree here. The fitting where the fuel
inlet line goes into the carb, is pressed into a rubber O ring. What will
happen, a small piece of this gets torn off and can work loose. It will be
just large enough it won't completely pass the needle seat for the float
causing it to stick open, flooding the carb. Remove the fitting, get this
piece(s) out (using air, a straight pin, anything) and it will be fine. Been
there, done that, problem solved... Why are you checking the coil if it is
flooding?
-Andy
[Non-text portions of this message have been removed]
bike idles but floods and dies
Posted: Wed Mar 28, 2007 9:50 pm
by Jud Jones
--- In
DSN_KLR650@yahoogroups.com, "Kevin Angus" wrote:
>
> The flooding I speak of is black smoke, way rich running, if you back off
> the gas the engine starts to idle and clears up. It acts like the timing
> does not advance or there is hi-voltage breakdown in the coil, as the RPM
> increases the coil shorts out internally. This effect happened on my old
> carb and my new one, all the gas lines are new, the fuel filter has been
> removed, the tank has been replaced with a small plastic tank for testing.
> The valve clearance shims were adjusted.
>
> Not an easy problem.
>
>
> _____
Not easy indeed. It could be fuel-related, but it could also be a symptom of a fault in the
charging system and a discharged batery. Putting a meter on the battery at rest and with the
motor running should give you a quick read, and at least rule out electrics if they are not the
problem.