Splitstream and no more injector issues?

ninayu61 · Jan 21, 2012

2010 FE390 to date no injector issues and hoping to keep it that way. I am considering the Splitstream tank filter; the ad reads "Most fuel injector nozzles have 50 or 60 micron holes, so Splitstream used a very fine 25 micron mesh for their fuel filter bags, helping eliminate clogged fuel injector nozzles." Is Splitstream the holy grail of avoiding any injector issues?

http://www.cyclebuy.com/shopping/splitstream/index.htm

ninayu61 · Jan 22, 2012

http://www.split-stream.com/products/splitstream-fuel-filter-honda-crf-kawasaki-kxf-ktm-sxf-efi

This Fuel Filter Screen eliminates this problem by creating the fuel tank as a closed circuit which makes it impossible for any sand, dirt or debris entering the fuel tank.

DeeG · Jan 22, 2012

A fuel filter screen is certainly a good idea, but from what I have read you need a 10 micron filter to protect the injector. You can only use a filter that small after the fuel pump so the pressure forces the fuel through the filter. But getting clean gas into the tank is a good start, and it should help protect the pump. But it won't help with Ethanol deposits and water absorption inside the tank. At least that is my understanding.

ninayu61 · Jan 23, 2012

DeeG said:
I have read you need a 10 micron filter to protect the injector.

Just found this thread that covers all FI issues and it is well written. Seems the 10 micron filter is too small.

http://www.enduro360.com/2012/01/16...ce/2012-ktm-fuel-injection-filter-discussion/

"Can a repair be made trailside? The answer is yes, but only if the original hose clamp has already been replaced with a reusable one. In an emergency, the inline filter could simply be removed and run without it."

"So far, it appears that the inline fuel filter may be the cause of more issues, rather than the cure. The 10 micron membrane is so small that it is very prone to clogging. KTM has issued a technical bulletin (TB1202) that directs dealers to replace the 10 micron filter with an updated, larger opening, 20 micron filter. Part of the service bulletin includes updating all 2011 models to run the inline filter."

"I spent some time talking with RJ Savage at All American KTM in Ramona to see what he could tell me. He has serviced a number of bikes for this already. The first thing he told me was that not a single bike had shown any sign of dirt in the filter. His belief is that this is simply a fuel issue. What is clogging the filter is varnish or other impurities associated with the gas. You can imagine how easy a pilot jet gets clogged with current fuels and with an opening that is hundreds of times larger than a 10 micron filter."

"RJ recommends the use of a fuel additive to all of his customers. They have tried a couple of different products and like the Star Tron fuel treatment. Another option would be to use Chevron Techtron fuel injection cleaner at a ratio of 1oz per gallon of fuel."

In summary the FI should not be a now that you know about:
1. Splitstream or KTM filler opening filter
2. 20 micron inline filter
3. Star Tron or Techtron additive
4. You can do a trail side FI repair

Hope this helps,
Todd

DeeG · Jan 23, 2012

The in-line 10 micron KTM filter does plug up. I have heard some speculation that the heat sort of melts it shut. Not sure, but my first one lasted two days.

I think the CanAm filter is also 10 micron, and it has had great reviews. So I don't think 10 micron is too small - but the 10 micron KTM filter doesn't hold up. Maybe it just doesn't have enough surface area like a can filter would have.

I agree that a repair can be done in the field, but it would be a challenge. I generally loosen my right radiator in order to get the tank off (because of the fan), and I don't carry a tool that can reach the bolts. So I would need to drop the rear end instead. Can be done, but I hope I never have to do it out on the trail.

fljar · Jan 24, 2012

ninayu61 said:
DeeG said:

I have read you need a 10 micron filter to protect the injector.

Click to expand...

Just found this thread that covers all FI issues and it is well written. Seems the 10 micron filter is too small.

http://www.enduro360.com/2012/01/16...ce/2012-ktm-fuel-injection-filter-discussion/

"Can a repair be made trailside? The answer is yes, but only if the original hose clamp has already been replaced with a reusable one. In an emergency, the inline filter could simply be removed and run without it."

"So far, it appears that the inline fuel filter may be the cause of more issues, rather than the cure. The 10 micron membrane is so small that it is very prone to clogging. KTM has issued a technical bulletin (TB1202) that directs dealers to replace the 10 micron filter with an updated, larger opening, 20 micron filter. Part of the service bulletin includes updating all 2011 models to run the inline filter."

"I spent some time talking with RJ Savage at All American KTM in Ramona to see what he could tell me. He has serviced a number of bikes for this already. The first thing he told me was that not a single bike had shown any sign of dirt in the filter. His belief is that this is simply a fuel issue. What is clogging the filter is varnish or other impurities associated with the gas. You can imagine how easy a pilot jet gets clogged with current fuels and with an opening that is hundreds of times larger than a 10 micron filter."

"RJ recommends the use of a fuel additive to all of his customers. They have tried a couple of different products and like the Star Tron fuel treatment. Another option would be to use Chevron Techtron fuel injection cleaner at a ratio of 1oz per gallon of fuel."

In summary the FI should not be a now that you know about:
1. Splitstream or KTM filler opening filter
2. 20 micron inline filter
3. Star Tron or Techtron additive
4. You can do a trail side FI repair

Hope this helps,
Todd

Definitely do not claim to have the technical knowledge most of you have but the article Todd mentions above seems to make sense in my case. I have a 2010 FE450 that I use Techron or Seafoam in approx every third tankfull (definitely Seafoam when it sits offseason) and have been fearing the dreaded fuel pump issue was going to rear its ugly head soon. After 70+ hours, I have yet to experience a problem (knock on wood) and have taken apart the tank/pump twice and have not found any of the white gunk others have posted about. Definitely going to purchase the split-stream as an added level of protection (tried the homemade version with some pantyhose --- pain in the a**).

Now if I could just get the fuel to stop boiling... :angry:

E-Ticket · Jan 24, 2012

fljar said:
ninayu61 said:

DeeG said:

I have read you need a 10 micron filter to protect the injector.

Click to expand...

Just found this thread that covers all FI issues and it is well written. Seems the 10 micron filter is too small.

http://www.enduro360.com/2012/01/16...ce/2012-ktm-fuel-injection-filter-discussion/

"Can a repair be made trailside? The answer is yes, but only if the original hose clamp has already been replaced with a reusable one. In an emergency, the inline filter could simply be removed and run without it."

"So far, it appears that the inline fuel filter may be the cause of more issues, rather than the cure. The 10 micron membrane is so small that it is very prone to clogging. KTM has issued a technical bulletin (TB1202) that directs dealers to replace the 10 micron filter with an updated, larger opening, 20 micron filter. Part of the service bulletin includes updating all 2011 models to run the inline filter."

"I spent some time talking with RJ Savage at All American KTM in Ramona to see what he could tell me. He has serviced a number of bikes for this already. The first thing he told me was that not a single bike had shown any sign of dirt in the filter. His belief is that this is simply a fuel issue. What is clogging the filter is varnish or other impurities associated with the gas. You can imagine how easy a pilot jet gets clogged with current fuels and with an opening that is hundreds of times larger than a 10 micron filter."

"RJ recommends the use of a fuel additive to all of his customers. They have tried a couple of different products and like the Star Tron fuel treatment. Another option would be to use Chevron Techtron fuel injection cleaner at a ratio of 1oz per gallon of fuel."

In summary the FI should not be a now that you know about:
1. Splitstream or KTM filler opening filter
2. 20 micron inline filter
3. Star Tron or Techtron additive
4. You can do a trail side FI repair

Hope this helps,
Todd

Click to expand...

Definitely do not claim to have the technical knowledge most of you have but the article Todd mentions above seems to make sense in my case. I have a 2010 FE450 that I use Techron or Seafoam in approx every third tankfull (definitely Seafoam when it sits offseason) and have been fearing the dreaded fuel pump issue was going to rear its ugly head soon. After 70+ hours, I have yet to experience a problem (knock on wood) and have taken apart the tank/pump twice and have not found any of the white gunk others have posted about. Definitely going to purchase the split-stream as an added level of protection (tried the homemade version with some pantyhose --- pain in the a**).

Now if I could just get the fuel to stop boiling... :angry:

fljar,

I had fuel boiling issues on my '10 FE 390 until I did the following:

1) Removed the one-way, inline valve in the gas tank vent line
2) Had Rick Bozarth at BOSS reflash the ECU with the Euro competition mapping.
3) Installed the radiator fan and Engine Ice coolant
4) Lined the bottom of the tank with the KTM Hardparts adhesive-backed, alumium sheeting
5) Mounted Akropovic slip-on exhaust cannister (w/ 92 db spark arrestor to control noise level)
6) Had mid-pipe ceramic coated (inside and out)

And no more problems what so we ever and am now at 2460 miles / 139 hours.
I did most of these mods at the same time so it's hard to quantify the impact of each mod.
My best guess is each added an incremental improvement ... with the greatest impact in the order given above.

Hope this helped. Cheers! E-Ticket

Wolfy · Jan 25, 2012

DeeG said:
A fuel filter screen is certainly a good idea, but from what I have read you need a 10 micron filter to protect the injector. You can only use a filter that small after the fuel pump so the pressure forces the fuel through the filter. But getting clean gas into the tank is a good start, and it should help protect the pump. But it won't help with Ethanol deposits and water absorption inside the tank. At least that is my understanding.

I've started using Marine Grade Sta-Bil specifically for the Ethanol issues, seems boats have the same issues as the Husabergs/KTM's.

Taffy · Jan 26, 2012

I know that there have been rare (I've only heard of one) cases of non-USA bikes having this trouble so your problem is FUEL. the issue is what to do about it.

Someone on here said that I'd be selling gizmos the day after the 'answers' were printed here but I don't have the problem so I have nothing to test against. you boys are on your own here but it sure as hell isn't anything to do with ceramic coating the insides of an exhaust and akropovik this that or the other.

the cure will be

the fuel - modifiers
filtration

at this point I can't see it being the electronics so a euro competition flash wouldn't be the answer either. different fuels burn at different speeds and differently under different loads but ignition maps are but crude compared to the pattern/path that one fuel needs compared to another. man isn't and can't be that subtle - sorry = not going to happen!

regards

Taffy

regards

Taffy

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