Loss of power

Squeaky back brake? Hard to control at 30mph/40kph?
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Re: Loss of power

Post by 990SM » Mon Dec 24, 2012 12:37 pm

This time i have removed all and observe how is the filters... i thinck i have found the problem....


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Re: Loss of power

Post by kevxtx » Mon Dec 24, 2012 10:04 pm

Yup that is well blocked.

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Re: Loss of power

Post by v2rider » Fri Dec 28, 2012 7:21 am

That looks like my first one too. Good news is that a filter kit sorted it, bad news was the cost. Ridiculous price for what it was, and makes a filter sock look very useful to keep it from happening again.

KTM part # 78107990000 here
Splitstream version here

I'm thinking of using one in both the SMT and the dirtbike. Doesn't need to be a perfect fit, just well enough to be sure the fuel filler will be inside it and fuel won't splash over the sides.

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Re: Loss of power

Post by kevxtx » Fri Dec 28, 2012 9:26 am

v2rider wrote:That looks like my first one too. Good news is that a filter kit sorted it, bad news was the cost. Ridiculous price for what it was, and makes a filter sock look very useful to keep it from happening again.

KTM part # 78107990000 here
Splitstream version here

I'm thinking of using one in both the SMT and the dirtbike. Doesn't need to be a perfect fit, just well enough to be sure the fuel filler will be inside it and fuel won't splash over the sides.

How many KMS on the Speedo?

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Re: Loss of power

Post by v2rider » Sat Dec 29, 2012 10:55 am

Hi Kev,
22780km as of today. Had the fuel pump replaced at about 19000 as a potential warranty claim, but that was just before the Philip Island MotoGP trip and I've heard nothing, so assume they knocked it back. Needs another service, so will see what they say about it.

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Re: Loss of power

Post by LenFerguson » Sun Dec 30, 2012 9:32 am

I found this thread on the SD forum and it seems to be a good mod for the fuel filter issue. Anyone tried it here to see how it would go?

http://www.superduke.net/forum/viewtopi ... =5&t=18149
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Re: Loss of power

Post by r0bb0mc » Sat Mar 30, 2013 2:14 am

Looks like I've got problems with Fuel Filter on my 2012 SMT. I've done 28,000klm and I just rode Canberra to Brisbane yesterday, along the way the bike started surging below 4000rpm, cutting out, backfiring etc. I had dropped my bike (stationary, for the second time!) a few days earlier, and I suspect that some crap from the bottom was stirred up and ended up in filters. It was like that for 10 hrs riding, not fun. Now I'm stuck in brisbane praying for a Fuel Filter kit, when all KTM shops are closed for easter. Anybody ridden with the filters removed :x

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Re: Loss of power

Post by kevxtx » Sat Mar 30, 2013 3:59 am

r0bb0mc wrote:Looks like I've got problems with Fuel Filter on my 2012 SMT. I've done 28,000klm and I just rode Canberra to Brisbane yesterday, along the way the bike started surging below 4000rpm, cutting out, backfiring etc. I had dropped my bike (stationary, for the second time!) a few days earlier, and I suspect that some crap from the bottom was stirred up and ended up in filters. It was like that for 10 hrs riding, not fun. Now I'm stuck in brisbane praying for a Fuel Filter kit, when all KTM shops are closed for easter. Anybody ridden with the filters removed :x

Mate if you are stuck pop over to my house & I will have a look for you, I live on the south side of Brisbane.

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Re: Loss of power

Post by r0bb0mc » Sat Mar 30, 2013 8:16 am

Thanks Kev, very generous of you.

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Re: Loss of power

Post by kevxtx » Sat Mar 30, 2013 2:18 pm

PM sent, we will catch up tomorrow to see what is going on with the KTO.

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Re: Loss of power

Post by r0bb0mc » Mon Apr 01, 2013 11:43 pm

Rode the SMT from Brisbane to Canberra with these dirty filters, due to no bike shops open over easter. The symptoms (power surging, loss of power, engine cutting in and out below 5k) varied in intensity over the 1,300 klm trip. My bike has now done 30,000 klm, not bad for a 14 month old SMT.

Thanks Kev for looking at my bike and giving me good advice. I had a lot more confidence in the bike lasting the trip after talking to you.

I wish I had known about this problem earlier, I would have changed the filters months ago.

Thanks again, I'll drop in next trip on the 1190 Adventure. haha

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Re: Loss of power

Post by kevxtx » Tue Apr 02, 2013 1:12 am

No worries Rob, glad you made it back OK.

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Re: Loss of power

Post by KTM-Wright » Sun Aug 11, 2013 10:09 pm

I just bought a used 2009 KTM ADV 990 with about 9500 miles on it and its having a lot of the same symptoms as others with fuel filter and pump problems on this thread. The one oddity with my problem is that once I have a severe loss of power after riding for a while I can just turn the bike all the way off with the key, resetting the system, and it starts right back up and rides for a while like nothing had happened. Even if I push it until it stalls and wont start again, I can just reset it and start it right back up.

Luckily I bought it from a dealer and noticed it on day one. They are picking it up tomorrow to figure it out. I need some ideas on what to expect.

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Re: Loss of power

Post by goagnome » Mon Oct 21, 2013 8:26 am

KTM-Wright wrote:I just bought a used 2009 KTM ADV 990 with about 9500 miles on it and its having a lot of the same symptoms as others with fuel filter and pump problems on this thread. The one oddity with my problem is that once I have a severe loss of power after riding for a while I can just turn the bike all the way off with the key, resetting the system, and it starts right back up and rides for a while like nothing had happened. Even if I push it until it stalls and wont start again, I can just reset it and start it right back up.

Luckily I bought it from a dealer and noticed it on day one. They are picking it up tomorrow to figure it out. I need some ideas on what to expect.

Did you ever find out what was causing this?

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Re: Loss of power

Post by KTM-Wright » Sun Nov 03, 2013 5:08 pm

Surprisingly a replacement of the fuel filter did the trick! Runs like new! it's amazing how many seemingly subtle issues arise from a simple fuel filter issue. I recommend to anyone with a 990 to keep a replacement on hand. You WILL need it sooner or later and you don't want to wait for shipping during your head scratching frustration. I personally went with a new CJ Designs filter kit. It was easy to install and it's working great!

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Post by Mikeylikesit » Tue Nov 05, 2013 8:14 pm

My original fuel filter went bad at 5k. Dealer changed under warranty. I bought 2 kits from george and decided to install one before a long road trip at about 20k. I noticed an increase in top end power that i didnt realize was gone! The second factory round filter was completely deteriated at one end and came out in two pieces. Georges filters look to be glued at the ends much better. I think the ktm filters are crap. Long story short i will be changing filters ever 15-20k with george's kits.

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Re: Loss of power

Post by soundman » Mon Jan 27, 2014 11:00 am

I'm having a similar problem with my 2010 SMT, all the symptoms seem the same. I've had the problem intermittently for over a year now, but recently its been happening at closer intervals. Usually if I hold out on the throttle and drop down a gear It will resume normal operation within a short while, if I pull in the clutch it will roll to an abrupt stop (feels like engine breaking) and start off again as if nothing was wrong. The other day as i'd just set off on my way back from work, the problem happened again, this time the engine re-engaged suddenly and the front-end popped up, nearly lost it completely as it landed in the rain... Took it to my local dealer after this happened and asked them to do the pressure test on the fuel pump and check the fuel filters as suggested in this thread and they couldn't find any faults - they also did a factory reset on the ECU and changed the spark plugs for good measure. This morning, it happened again. Feel's like i'm riding a death machine at the moment, how long will it be before someone piles into the back of me when my bike suddenly loses power. At a bit of a loss, the mechanics can't find any fault. Anyone have any advice, or managed to completely cure this disease?

Cheers

Geoff

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Post by Mikeylikesit » Mon Jan 27, 2014 3:24 pm

Clogged fuel filter symptoms typically present themselves at high rpm and big throttle opening. Thats where the dirty filters restrict fuel flow to the point of causing the engine to misfire. If the dealer did in fact do a proper pressure test than its time to look elsewhere for the problem. Does it happen at any particular throttle position or rpm? Or does it happen anytime it feels like it? Does your instrument cluster reset when it happens? I had a similar off on again symptom on a different bike that i finally traces to a cracked fuel pump connector. It would cut out based on vibration, then cut back in as soon as i pulled in the clutch.

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Re: Loss of power

Post by soundman » Mon Jan 27, 2014 4:41 pm

I had thought it was a high RPM issue, but this morning it kicked in at around 5k, not certain, but it does feel like it may have something to do with the throttle position as you suggested. Instrument cluster is normal. Sounds like I might have to get my hands dirty and have a go at sourcing the issue myself. Can't afford to keep taking it to the garage... Cheers

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Re: Loss of power

Post by KTM-Wright » Mon Jan 27, 2014 4:53 pm

Soundman, You should definitely dig into it yourself. Changing the fuel filter is not a difficult task, and there's no fancy tools involved. You'll be glad you did.

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