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Old 10-19-2009, 03:43 PM   #76
minusone
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My 06 990 has been giving problems which include starving of fuel at varying revs. Sometimes it would work for only 30 seconds and then die if I opened the throttle.

Most disconcerting when out in the wilderness.

My fix that seemed to work is to spray the contacts in the fuel pump plug/socket connector with WD40 and it would work perfectly for some hours then slowly deteriorate again. I will thoroughly clean this plug that is exposed to all the mud and water and see if I can fix it permanently.

I wonder if some of these fuel pump issues are related to dirty plug contacts.
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Old 10-19-2009, 05:27 PM   #77
empedrado
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Quote:
Originally Posted by minusone
My 06 990 has been giving problems which include starving of fuel at varying revs. Sometimes it would work for only 30 seconds and then die if I opened the throttle.

Most disconcerting when out in the wilderness.

My fix that seemed to work is to spray the contacts in the fuel pump plug/socket connector with WD40 and it would work perfectly for some hours then slowly deteriorate again. I will thoroughly clean this plug that is exposed to all the mud and water and see if I can fix it permanently.

I wonder if some of these fuel pump issues are related to dirty plug contacts.
If that is the case coat the contacts with dialectric grease. I had all kinds of contact problems with my old 640 Adv with dust and the like and that grease worked wonders.
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Old 10-19-2009, 09:49 PM   #78
minusone
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Quote:
Originally Posted by empedrado
If that is the case coat the contacts with dialectric grease. I had all kinds of contact problems with my old 640 Adv with dust and the like and that grease worked wonders.
I intend to do that, however it seems I need to clean up some tarnished contacts first. Any ideas on something I can soak the plug/socket contacts in to clean them up properly? It is not easy to clean them manually.
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Old 10-19-2009, 10:50 PM   #79
Vicks OP
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Quote:
Originally Posted by minusone
I intend to do that, however it seems I need to clean up some tarnished contacts first. Any ideas on something I can soak the plug/socket contacts in to clean them up properly? It is not easy to clean them manually.
The contact pins & sockets can be removed using a fine screwdriver.

If you can't do this, a shot of brake cleaner will clear up the grease/gunk, an old toothbrush might help too.
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Old 10-20-2009, 10:35 AM   #80
sp4ce
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Quote:
Originally Posted by minusone
I intend to do that, however it seems I need to clean up some tarnished contacts first. Any ideas on something I can soak the plug/socket contacts in to clean them up properly? It is not easy to clean them manually.
I use DeoxIT to clean, then apply dielectric grease. Seems to work pretty well.
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Old 10-20-2009, 02:20 PM   #81
Dusty
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Quote:
Originally Posted by sp4ce
I use DeoxIT to clean, then apply dielectric grease. Seems to work pretty well.
good tip, thanks...
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Old 10-20-2009, 02:48 PM   #82
minusone
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Quote:
Originally Posted by sp4ce
I use DeoxIT to clean, then apply dielectric grease. Seems to work pretty well.
Yes thats what I was after thanks.
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Old 10-23-2009, 02:09 PM   #83
RLCanon
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Any progress on the external fuel pump/regulator front?
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Old 12-08-2009, 09:11 PM   #84
RLCanon
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I just wanted to thank Mr.Vicks for the original post which was invaluable in demystifying disassembly of the fuel pump assembly. I bought a factory fuel pump (ouch!) so I can get my bike out of the hands of the dealer if they prove completely incapable of sorting it out, as well as to have a spare for solo trips to the boonies.

As far as the dealer sorting my fueling issues on warranty, I don't know what to think... First it was three full days to flash the ECU, now it's over a week to warranty the fuel filters. Dropped it off last Tuesday; called them this afternoon, Tuesday a week later, and no filters - no progress. I ordered the fuel pump toward the end of last week and even so I managed to get it before they got the filters, and they had a 3 day head start! WTF? I wait three days before I decide to order, then order from an internet dealer who tells me they have to order from KTM. They get it from KTM and still have to ship it to me, and I STILL get it before the local dealer doing the warranty work gets just the filters? I mean really; WTF?
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Old 12-10-2009, 07:54 AM   #85
jeremyk
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Flow Rate

Flow rate can be calculated by simply knowing the peak HP of the engine and the PSI at which the fuel system operates.

Flow rate cannot be calculated from fuel consumption while cruising, as this is not the maximum fuel flow that will be required at peak horsepower. I've done these calculations before when upgrading turbos on my Dodge Stealth back when I was a "kid".

Here's a calculator. It came up with 110 L/hr using some numbers I threw at it.
http://www.eastcoastrollingthunder.c...r/finject1.htm
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Old 03-04-2010, 07:39 AM   #86
Gluaisrothaí
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3.6 Amps

I measured the current through the pump (at 12.3 V). It was 3.6 A. Make's it most likely to be a type D. I checked it before and after a filter change.

Glu.


Quote:
Originally Posted by Vicks
Current draw for Type C is 5.0A @ 12VDC and for the Type D, it is 3.8A @ 12VDC.

Edit : Sorry, i thought you were asking for the current draw of the Type C & D pumps, and after re-reading your post, i understood that you were asking for the current draw of the stock pump. Let me try to do some measurements over this weekend and get the figures for you.



I can't believe that none of the inmates know the fuel flow & pressure ratings for the stock pump on the 990 . C'mon guys, we need yar help here ..... This info will be critical to finding the right model of keihin pump, one less problem.
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Old 03-07-2010, 11:51 AM   #87
jeremyk
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We need to know (1) fuel injector size (flow rate), and (2) fuel pressure. With that info. we can correctly select a size for a replacement fuel pump. It's pretty straight forward stuff.
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Old 03-07-2010, 02:06 PM   #88
bkshovel
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If you can live with a externaly pump? Here's a thread that might interest you.


http://www.advrider.com/forums/showt...=422042&page=7

I didn't read the all the post to this sooo I hope I'm not interjecting something unwanted. These guys have it pretty much figured out.
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Old 03-07-2010, 11:36 PM   #89
gefr
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Could you enlighten me pls

Quote:
Originally Posted by Vicks
any information is good information !!!
I searched in OEM kalatogs and seems the filter assy includes the paper filter the teabag filter and some real cheap orings. Someone in here found them for 1,5$ each. So it seems we are charged for $90 for parts worth $25?
For comparison, Ducati filters go for 9€, bought by MAN, or 19€ by Ducatti.

gefr screwed with this post 05-16-2011 at 11:28 PM
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Old 03-07-2010, 11:41 PM   #90
gefr
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Got confused!

Quote:
Originally Posted by crashmaster




O-Ring Type
For Straight Thread Tube Fittings
Cross Section Shape
Round
Width
.118"
Inside Diameter
2.337"
Outside Diameter
2.573"
Material
Viton® Fluoroelastomer
















Shouldn't Inside Diameter + Width = Outside Diameter?
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