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Old 05-04-2013, 12:28 PM   #526
Katoom119
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According to both the RC8 service manual and the Adventure service manual both bikes require 48 - 54 psi (3.3 - 3.7 bar) for the fuel pumps.

There is a special KTM diagnostic tool to test this but it's computer controlled, password protected, blah blah blah. Sounds like you'd just have to take it into the KTM dealer. Looks like, based on the pictures, that they connect the tool to both the tank and an empty fuel jug. The computer tool actuates the fuel pump to pump fuel through the line from the tank into the jug while a pressure gauge is attached to visually show the pressure. All the computer does, likely, is turn the fuel pump on at a set point (like full throttle or 50% throttle).
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Old 05-04-2013, 11:24 PM   #527
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Good info there KATOOM119

Maybe there is to much lifting for the pump. Mine is installed as per standard in the Safari and vvill have to go through 40cm hose up to the EFI bridge. hmm. If i recall right the RC8s have the tank on top and the pump right above or at niveau vvith the EFI bridge.

After searching around for some numbers to get the correct fuelpump i found this:

Hp * .38
That vvould be
176 * .38 = 67L per hour. That is a minimum an hour.

hmmmm
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Old 05-04-2013, 11:41 PM   #528
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I don't think height is an issue. 3,3bar pressure means it can lift fuel ca 40 meters (according to fuel density). 40cm is only 1% of that.
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Old 05-05-2013, 09:09 AM   #529
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Quote:
Originally Posted by LocuL View Post
Good info there KATOOM119

Maybe there is to much lifting for the pump. Mine is installed as per standard in the Safari and vvill have to go through 40cm hose up to the EFI bridge. hmm. If i recall right the RC8s have the tank on top and the pump right above or at niveau vvith the EFI bridge.

After searching around for some numbers to get the correct fuelpump i found this:

Hp * .38
That vvould be
176 * .38 = 67L per hour. That is a minimum an hour.

hmmmm
What do the fuel filters look like? Having been through a similar problem with my 990, changing the filters brought it back to normal. Might be worth checking.
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Old 05-05-2013, 09:59 AM   #530
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I pulled the part numbers on the fiche and the pumps look different.
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Old 05-05-2013, 10:35 AM   #531
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hmmm i thought i looked that part up back then. Thanks for the vvork KATOOM119

Edit:

I´ll empty the left tank and pull out the fuel pump next vveek. If the problem only should be a clogged filter, i vvouldbe happy.

Let you knovv
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Old 05-05-2013, 12:29 PM   #532
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The only other issue I can think of is if the hose running from the fuel pump to the engine stretches then you would be losing some of your pressure there.

Hope you figure it out. Bike looks killer!
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Old 05-05-2013, 02:34 PM   #533
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Should it end up being a faulty pump I have a 990 pump laying around you can have for cheap, well whatever you feel like paying for it, all the money would go to my attempt to raise some money for charity.


/Johan
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Old 05-09-2013, 02:06 PM   #534
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Well i got into the fuelpump today and tore it apart.

Filters looked like this when i opened them up. What are your thoughts?





Filters are on the way from Champ Gefr.
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Old 05-09-2013, 03:55 PM   #535
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The pump filter input doesn't look too bad, however, the paper filter on the pump output looks pretty gummed up. Similar to the one I took out of my 990 last week. It wouldn't rev above 4500 and acted like fuel starvation. Gefr's filters solved my problem. Bet it will solve yours.
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Old 05-09-2013, 05:11 PM   #536
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O.K. guys, here is my thoughts on the locul project.

Of course there is some envy on exploring new territory like locul did. Needs great courage, bravery and imagination I don't have. After having accomplished this titanic project, here comes a production bike in the "same" lines with the "housemade" project. So there is competition. Apart from the internal mental wondering, there is the moment of logical comparison of two products: the industrial and the household application of similar targets. The household product moves in more personal options like more suspension travel and ground clearance while the industrial should have a more thought through compact design. My question refers to the comparison of the final product of a cold blooded tester. What virtues each bike has and how do they unroll through everyday life with each of these two niche bikes...well obviously this cannot happen so I asked if locu has taken a test ride with the new breed.
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Old 05-09-2013, 05:46 PM   #537
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Kay?
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Old 05-09-2013, 05:49 PM   #538
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Quote:
Originally Posted by LocuL View Post
Well i got into the fuelpump today and tore it apart.

Filters looked like this when i opened them up. What are your thoughts?

Filters are on the way from Champ Gefr.
Well new filters are never a bad thing. For what it is worth though those ones you peeled open are WAAAAY better than those I took from my 17k mile Adventure.... They actually look pretty good.
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Old 05-09-2013, 08:13 PM   #539
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put new filters in it, you will be glad you did...
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Old 05-09-2013, 10:50 PM   #540
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The previous filter photo is deceiving...

The tea bag is a drainage suction filter. Dirt and grim is supposed to stay outside, so the inside we see is immaculate as it should be. On the contrary the paper pressure filter inside is displayed correctly and seems there is a cover with greyish color?
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