Nightster stalling problem
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Nightster stalling problem
I have a 09 nightster with 500 miles on it and the only upgrades are V&H short shots, stage 1 AC, and a PCV. Every time I start it up for the first time of the day it stalls out about 30 seconds after starting it. This happens every single time. To keep the bike running I have to give it throttle until it warms up. What is the problem?.
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From: Union,Ms
I have a 09 nightster with 500 miles on it and the only upgrades are V&H short shots, stage 1 AC, and a PCV. Every time I start it up for the first time of the day it stalls out about 30 seconds after starting it. This happens every single time. To keep the bike running I have to give it throttle until it warms up. What is the problem?.
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My bike is still covered under warranty. I went to the dealership and they told me I need to pay for a dynotune. I got my PCV tuned from their website and that should be good enough. I dont want to pay more money because forward controls were my next mod.
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Posts: 1,757
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From: Central Florida
My BOX stock 2008 1200R had a single Miss at about 20-30 seconds
after starting it, damn near killed the engine. Did It everytime on the first
start of the day,,,
It completely stopped once my AFR was changed from the EPA super lean
14.7 to a more reasonable 14.0....
SEE next post,,,
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Joined: Oct 2009
Posts: 1,757
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From: Central Florida
The Factory 14.7 EPA compliant AFR Is very very lean.
This produced white chalky plugs on my stocker.
The X14ieD claims an AFR of 14.0
The XieD claims an AFR of 13.8
I have the X14ieD and my plugs are a nice copper color now.
With This I feel safe adding a Hi flow "Baffled" exhaust and or air filter.
I'm no expert, I just could NOT justify all that money for an ECM and dyno time.
$1,000 for a proper stage one just for a single digit Increase in HP and TQ.
what 6 or 7 at best..No Thanks,
The X14ieD's I Installed really feels good. the Bike Is smoother at all RPM's
My MPG did NOT drop probably because I'm using less throttle due to the
apparent extra power which Is really just smoother power delivery.
The Biggest change on my 08 EFI 1200R was cold start ups.
Before the X14ieD I'd start It,,
get 1400 rpms,,,then 15 to 20 seconds later a single Miss,,
It would almost Kill the engine,,followed buy 30 to 45 seconds of a unsteady Idle
ranging from 1000 to 1400 RPM's.
A steady 1,000 rpm idle would be reached at about 1.5 minutes or even 2 minutes.
After the X14ieD, Imediatly after,,,WOW
Hit the starter,,,rock stable Idle at 1400 rpm's then 20 to 30 seconds later
(45 seconds on chilly mornings) I'd have me a Tach parked on 1,000 RPM's
The needle looked welded to the Tach Face.
That one nasty Miss was all Gone!
I never noticed a "Learning curve",,there may have been one but I was so
overwhelmed by my new smooth power delivery I still say my ECM figgerd
It had died and gone to Harley heavan XD
This produced white chalky plugs on my stocker.
The X14ieD claims an AFR of 14.0
The XieD claims an AFR of 13.8
I have the X14ieD and my plugs are a nice copper color now.
With This I feel safe adding a Hi flow "Baffled" exhaust and or air filter.
I'm no expert, I just could NOT justify all that money for an ECM and dyno time.
$1,000 for a proper stage one just for a single digit Increase in HP and TQ.
what 6 or 7 at best..No Thanks,
The X14ieD's I Installed really feels good. the Bike Is smoother at all RPM's
My MPG did NOT drop probably because I'm using less throttle due to the
apparent extra power which Is really just smoother power delivery.
The Biggest change on my 08 EFI 1200R was cold start ups.
Before the X14ieD I'd start It,,
get 1400 rpms,,,then 15 to 20 seconds later a single Miss,,
It would almost Kill the engine,,followed buy 30 to 45 seconds of a unsteady Idle
ranging from 1000 to 1400 RPM's.
A steady 1,000 rpm idle would be reached at about 1.5 minutes or even 2 minutes.
After the X14ieD, Imediatly after,,,WOW
Hit the starter,,,rock stable Idle at 1400 rpm's then 20 to 30 seconds later
(45 seconds on chilly mornings) I'd have me a Tach parked on 1,000 RPM's
The needle looked welded to the Tach Face.
That one nasty Miss was all Gone!
I never noticed a "Learning curve",,there may have been one but I was so
overwhelmed by my new smooth power delivery I still say my ECM figgerd
It had died and gone to Harley heavan XD
Account Deactivated
Joined: Oct 2009
Posts: 1,757
Likes: 8
From: Central Florida
From what you describe I'd say the web page pcv settings are off...
Every engine Is different,,,
assuming you have no air leaks,,are your plugs tight ??
No two bikes with the same aftermarket Stage one set up will
use the exact same settings,,,,
Fresh premium fuel,,,a good brand,,,Ethanol fuel starts crappin out after two weeks
with no sentry,,,,,http://sentrytreatments.com/
Do you live at sea level ?
Cold weather,,,low humidity,,
Hot weather,,High humidity,,
500 miles,,,did you let it sit all winter,,,low battery,,loose ground,,, so many things to check.
Your basic settings that they gave you may be off just a tad outside
the needed parameters...
As for the dealer and a dyno run,,
That my freind Is the ONLY way they can set It correctly...
IF that Is the problem,,,
IF there Is a air or vacume leak I think they could find that,,,with the dyno
No way around it,,You want spot on Stage one performace,,a Dyno with
an operator skilled with the PCV is the best way,,
Unless you got a Lap top and know how to modify fuel tables,,,NOT reccomened for the unskilled,
A little off an yer engine could,,,cook It self.
Every engine Is different,,,
assuming you have no air leaks,,are your plugs tight ??
No two bikes with the same aftermarket Stage one set up will
use the exact same settings,,,,
Fresh premium fuel,,,a good brand,,,Ethanol fuel starts crappin out after two weeks
with no sentry,,,,,http://sentrytreatments.com/
Do you live at sea level ?
Cold weather,,,low humidity,,
Hot weather,,High humidity,,
500 miles,,,did you let it sit all winter,,,low battery,,loose ground,,, so many things to check.
Your basic settings that they gave you may be off just a tad outside
the needed parameters...
As for the dealer and a dyno run,,
That my freind Is the ONLY way they can set It correctly...
IF that Is the problem,,,
IF there Is a air or vacume leak I think they could find that,,,with the dyno
No way around it,,You want spot on Stage one performace,,a Dyno with
an operator skilled with the PCV is the best way,,
Unless you got a Lap top and know how to modify fuel tables,,,NOT reccomened for the unskilled,
A little off an yer engine could,,,cook It self.
Last edited by Osco; Mar 18, 2011 at 05:56 PM.