ADVrider

Go Back   ADVrider > Bikes > Orange Crush
User Name
Password
Register Inmates Photos Site Rules Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
Old 05-29-2014, 11:07 PM   #1
VxZeroKnots OP
Beastly Adventurer
 
VxZeroKnots's Avatar
 
Joined: Jun 2008
Location: Durango CO
Oddometer: 2,501
help diagnose 2005 950 adv cutting out

So today I was riding a long for me slab ride and my bike had a weird issue with cutting out. 99% of the time in calm conditions it would run fine and rev normal. But at speeds in excess of 65/70 mph or in strong cross winds or when a semi passed going the opposite direction the bike would cut out and stumble. It never died or dropped more than a few hundred rpm but I could easily feel it and it wouldnt rev for a second or two.

I also noticed that if I would roll off quick and then back on it would do the same thing. Even with the clutch in from anywhere between 4k and 8k rpm it would stumble at speed or in wind. Engine speed and load seemed to make no difference and it ran fine at lower speeds or in calm conditions. Just sitting parked or riding in a parking lot everything was normal.

It has had a recent valve adjust, clean stock airfilter with a uni prefilter, sas and smog removal with stock cans. Im guessing either diaphragms or carb boots as there arent a whole lot of other places I can think of for a vacuum leak.

Any insight or suggestions would be greatly appreciated.
__________________
I say we take off and nuke the entire site from orbit. It's the only way to be sure

No bike does everything perfectly. In fact, no bike does anything until someone gets on it to ride.

VxZeroKnots is offline   Reply With Quote
Old 05-29-2014, 11:22 PM   #2
gefr
Life is a trip
 
gefr's Avatar
 
Joined: Nov 2005
Location: East Med, Greece
Oddometer: 3,731
There was an issue on early 950s caused by carb venting hoses

They need to be arranged at certain lengths, under the airbox, inside the vee and protected from wind gusts. Side winds affected the engine operation. Maybe yours need rearrangement?
Boots sometimes are not properly seated...
Cheers.

gefr screwed with this post 05-30-2014 at 03:04 PM
gefr is offline   Reply With Quote
Old 05-30-2014, 04:03 AM   #3
ABuck99
0.0
 
ABuck99's Avatar
 
Joined: Feb 2009
Location: Georgia
Oddometer: 487
Cutting out as in loss of electrics or fuel delivery?

Fuel pump? How many miles on the bike? Have you ever replaced the FP or replaced the FP points?
__________________
KTM: 06 KTM950S & 10 KTM450EXC
ABuck99 is offline   Reply With Quote
Old 05-30-2014, 04:23 AM   #4
Hiatus
Adventurer
 
Joined: Feb 2012
Location: Rockford, MN
Oddometer: 32
I chased a similar issue on my 06 and it ended up being the ignition coil on the front cylinder was not seated down all the way. I know it sounds too easy but give them a quick check.
Hiatus is offline   Reply With Quote
Old 05-30-2014, 08:10 AM   #5
VxZeroKnots OP
Beastly Adventurer
 
VxZeroKnots's Avatar
 
Joined: Jun 2008
Location: Durango CO
Oddometer: 2,501
Quote:
Originally Posted by ABuck99 View Post
Cutting out as in loss of electrics or fuel delivery?

Fuel pump? How many miles on the bike? Have you ever replaced the FP or replaced the FP points?
36000 miles and it has the facet pump. Electrics were fine it seemed like a fueling issue as in a loss of power.

Thanks for the suggestions ill check the coil.
__________________
I say we take off and nuke the entire site from orbit. It's the only way to be sure

No bike does everything perfectly. In fact, no bike does anything until someone gets on it to ride.

VxZeroKnots is offline   Reply With Quote
Old 05-30-2014, 02:15 PM   #6
gefr
Life is a trip
 
gefr's Avatar
 
Joined: Nov 2005
Location: East Med, Greece
Oddometer: 3,731
Well you should know Facets also fail

Not bulletproof. Cheers.
gefr is offline   Reply With Quote
Old 05-30-2014, 02:38 PM   #7
VxZeroKnots OP
Beastly Adventurer
 
VxZeroKnots's Avatar
 
Joined: Jun 2008
Location: Durango CO
Oddometer: 2,501
The main thing that makes me think it was vacuum related and not the fuel pump is the temporary loss of power was always related to a wind or throttle event.

Ill tick all the boxes once I get er back in the garage but its one of those intermittent problems which could end up being a pain.
__________________
I say we take off and nuke the entire site from orbit. It's the only way to be sure

No bike does everything perfectly. In fact, no bike does anything until someone gets on it to ride.

VxZeroKnots is offline   Reply With Quote
Old 05-31-2014, 07:48 AM   #8
VxZeroKnots OP
Beastly Adventurer
 
VxZeroKnots's Avatar
 
Joined: Jun 2008
Location: Durango CO
Oddometer: 2,501
So the coils are definitely seated, couldnt find an obvious leak in the vacuum hoses for carb syncing. It ran great doing forest roads and double track yesterday. Im guessing its something a little deeper at this point.
__________________
I say we take off and nuke the entire site from orbit. It's the only way to be sure

No bike does everything perfectly. In fact, no bike does anything until someone gets on it to ride.

VxZeroKnots is offline   Reply With Quote
Old 05-31-2014, 08:13 AM   #9
Scribe
£Bob£
 
Scribe's Avatar
 
Joined: Nov 2004
Location: In my natural state
Oddometer: 6,661
Make sure your battery connections are tight.
__________________
"Do or do not. There is no 'try.'"
— Yoda
Scribe is offline   Reply With Quote
Old 05-31-2014, 11:23 AM   #10
Bowber
Adventurer
 
Joined: Feb 2012
Location: Kirkby Stephen, Cumbria, UK
Oddometer: 93
My 950 definitely has drops in power when the wind gusts but it's not huge.
For example I was hit by a big gust on a windy day and I felt like it was going to stop but just a little extra throttle sorted it. Side gusts seem to cause the biggest change.
Mine is one of the first 950's so the carb vents just go through the airbox into the V and are quite short, I would have expected them to go all the way to the bottom of the frame like most bikes.

Steve
Bowber is offline   Reply With Quote
Old 05-31-2014, 12:28 PM   #11
VxZeroKnots OP
Beastly Adventurer
 
VxZeroKnots's Avatar
 
Joined: Jun 2008
Location: Durango CO
Oddometer: 2,501
That is exactly what happens but going through wyoming the big side gusts were the norm. I ran the vent from the y down to the cs area, maybe it needs to be more protected...
__________________
I say we take off and nuke the entire site from orbit. It's the only way to be sure

No bike does everything perfectly. In fact, no bike does anything until someone gets on it to ride.

VxZeroKnots is offline   Reply With Quote
Old 05-31-2014, 01:07 PM   #12
Bowber
Adventurer
 
Joined: Feb 2012
Location: Kirkby Stephen, Cumbria, UK
Oddometer: 93
Mine is 2 seperate vents, no Y at all.
Bowber is offline   Reply With Quote
Old 05-31-2014, 02:59 PM   #13
Tangai
Studly Adventurer
 
Joined: Oct 2006
Location: Pocola, OK
Oddometer: 532
What Gefr said is most likely the problem.

"There was an issue on early 950s caused by carb venting hoses
They need to be arranged at certain lengths, under the airbox, inside the vee and protected from wind gusts. Side winds affected the engine operation. Maybe yours need rearrangement?"

Easy to fix and makes a big difference.
Tangai is offline   Reply With Quote
Old 05-31-2014, 03:11 PM   #14
VxZeroKnots OP
Beastly Adventurer
 
VxZeroKnots's Avatar
 
Joined: Jun 2008
Location: Durango CO
Oddometer: 2,501
Quote:
Originally Posted by Tangai View Post
What Gefr said is most likely the problem.

"There was an issue on early 950s caused by carb venting hoses
They need to be arranged at certain lengths, under the airbox, inside the vee and protected from wind gusts. Side winds affected the engine operation. Maybe yours need rearrangement?"

Easy to fix and makes a big difference.
Ill be sure to check that. I desmogged following an article on the how but it wasnt specific about hose routing. Does anyone have a link by chance?
__________________
I say we take off and nuke the entire site from orbit. It's the only way to be sure

No bike does everything perfectly. In fact, no bike does anything until someone gets on it to ride.

VxZeroKnots is offline   Reply With Quote
Old 05-31-2014, 08:46 PM   #15
Dustodust
Studly Adventurer
 
Dustodust's Avatar
 
Joined: Oct 2009
Location: Hillsboro Oregon
Oddometer: 794
Quote:
Originally Posted by Scribe View Post
Make sure your battery connections are tight.
this is very common

also key switch malfunction, especially with a lot of keys on the fob
__________________
04 KTM 950 S
04 KTM 525 EXC street plated
Dustodust is offline   Reply With Quote
Reply

Share

Thread Tools Search this Thread
Search this Thread:

.
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


Times are GMT -7.   It's 11:16 PM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ADVrider 2011-2014