viola-tor's MPG problem thread - Page 3

viola-tor · 03-13-2012, 10:02 PM

Quote:

Originally Posted by ADVMax

I got two words for you - carburetors.

Isn't that one word?

Believe me, I've thought it...

Quote:

Originally Posted by Katoom119

Nah. It can be fixed. Before he goes to carbs I'll drive down to Texas myself, pick up the bike, and haul it over here to Wheeler to let him work his magic.

What can I say? Band geeks have to stick together.

Ya man! Brothers!

We'll get it sorted eventually.

Quote:

Originally Posted by ADVMax

I hear ya. We've about decided that if we're going to fool with injetion we're going to have to put our own system together to make it work the way we want it to. Mileage will not be a result.

That's fine, performance should always be first!

But wasting fuel for no benefit is, well, wasteful! Not cool.

Who is "we" BTW? Are you cooking up something interesting?

viola-tor · 03-13-2012, 10:05 PM

I suppose I'm gong to reassemble again and hook up to TuneECU and have a go with the suggestions here, see what happens.

Still seems that the committee is split on "S" Hose VS. Bolts on the intakes... Hmmm. Kinda gotta decide that before I put the airbox back on.

DirtJack · 03-14-2012, 05:40 AM

Quote:

Originally Posted by viola-tor

I suppose I'm gong to reassemble again and hook up to TuneECU and have a go with the suggestions here, see what happens.

Still seems that the committee is split on "S" Hose VS. Bolts on the intakes... Hmmm. Kinda gotta decide that before I put the airbox back on.

I know you said the S hose is open, but does it leak air (I know this is highly unlikely)?

MrLebowski · 03-14-2012, 06:42 AM

I'll add to the Hose debate... Mine is in "S" configuration (injected bike), works fine. Doesn't seem to effect my mileage, I routinely get mid-high 40's with my setup.

gefr · 03-14-2012, 09:55 AM

Quote:

Originally Posted by viola-tor

Still seems that the committee is split on "S" Hose VS. Bolts on the intakes... Hmmm. Kinda gotta decide that before I put the airbox back on.

You can leave the "S" hose on and pinch it or nick it from the side, under the airfilter with a tie wrap or a wire, just to see what is happening. Leave the left tank out.
Cheers.

viola-tor · 03-15-2012, 03:11 PM

Bike is back together, charging batt now.

Looks like the O2 sensors are off (unchecked) in my current Akro map. Should I try turning them on?

TPS - how do I go about calibrating/testing this? The manual isn't very clear, it says "no, can't test TPS" and then goes on to mention how to do it. I can't tell if engine is supposed to be on, off, or what... I see the "TPS" box in the lower right border of the window, do I manipulate it from there? Please give me very specific instructions.

bikyto · 03-15-2012, 03:46 PM

It's the tps that you are trying to adjust, right? Not the throttle cable adjustment function.

I'm just trying to be clear.

Alleycatdad · 03-15-2012, 03:57 PM

HIghly recommend that you change nothing since the mechanical check and go give it another test. Change too much and you'll never know what worked or didn't....

S

viola-tor · 03-15-2012, 03:58 PM

Quote:

Originally Posted by bikyto

It's the tps that you are trying to adjust, right? Not the throttle cable adjustment function.

I'm just trying to be clear.

Yes, correct. My throttle cable is adjusted properly, I want to calibrate/reset the TPS if possible to eliminate that as a factor contributing to my poor fuel consumption.

viola-tor · 03-15-2012, 03:59 PM

Quote:

Originally Posted by Alleycatdad

HIghly recommend that you change nothing since the mechanical check and go give it another test. Change too much and you'll never know what worked or didn't....

S

Okay, you're right, worth a shot (even though I didn't change anything, just took it apart and put it back together...)

bikyto · 03-15-2012, 04:01 PM

Quote:

Originally Posted by Alleycatdad

HIghly recommend that you change nothing since the mechanical check and go give it another test. Change too much and you'll never know what worked or didn't....

S

+1 except if you have your right tank off and/or air box opened

DirtJack · 03-15-2012, 04:01 PM

Quote:

Originally Posted by viola-tor

Okay, you're right, worth a shot (even though I didn't change anything, just took it apart and put it back together...)

Strange hearing you resist the idea of a ride.

bikyto · 03-15-2012, 04:04 PM

Quote:

Originally Posted by viola-tor

Yes, correct. My throttle cable is adjusted properly, I want to calibrate/reset the TPS if possible to eliminate that as a factor contributing to my poor fuel consumption.

Got it. But the throttle slack sometimes has an impact of the ISC. That why there is a function to retract it to adjust the slack

The tps adjustments are done on a warm engine. In the off position. After a TBs adjustment preferably. It's easier to do when your airbox is of the bike otherwise you'll need to drill it (easy way to accept the tps). And the value that you are aiming for is 0.60v
What do you currently have?

viola-tor · 03-15-2012, 08:04 PM

Quote:

Originally Posted by bikyto

Got it. But the throttle slack sometimes has an impact of the ISC. That why there is a function to retract it to adjust the slack

The tps adjustments are done on a warm engine. In the off position. After a TBs adjustment preferably. It's easier to do when your airbox is of the bike otherwise you'll need to drill it (easy way to accept the tps). And the value that you are aiming for is 0.60v
What do you currently have?

Thank you for your patience as I stumble through this.

So then I should warm the engine, plug it in, do a TB adjustment, then a TPS adjustment? Any special instructions for TB and TPS?

I'm confused, is the TPS adjustment a manual/mechanical adjustment? Why do I need to be physically in the airbox if my throttle cable is properly adjusted?

My throttle cable tension/slack looks good, just a little bit of give at full close. Am I supposed to adjust it with a computer aid somehow? I really am scratching me head, it's a couple simple little nuts...

Alleycatdad · 03-15-2012, 08:32 PM

Yes. The computer sets the isc servo at a specfic starting place independent of your cable slack.

Under the TESTS tab, under the test&adjust window, use the "adjust throttle cable" button. This zeros the ISC servo so that you are actually adjusting what you think you are adjusting.

Under "tasks" on the tuneecu site: http://www.tuneecu.com/TuneECU_En/tasks.html

"Adjusting the throttle cable - only KTM
The idle speed control stepper motor will be completely retracted and the throttle valves completely closed.
Switch the ignition switch off, WITHOUT exiting or disconnecting the software, and adjust the throttle cable clearance."

Hope this helps.

Steve

03-13-2012, 10:05 PM	#32
viola-tor ^OP Needs to ride! Joined: Feb 2008 Location: The Alamo Oddometer: 2,065	I suppose I'm gong to reassemble again and hook up to TuneECU and have a go with the suggestions here, see what happens. Still seems that the committee is split on "S" Hose VS. Bolts on the intakes... Hmmm. Kinda gotta decide that before I put the airbox back on. __________________ WHHHAAAAT!?!?! 5 Star RR: VIOLA-TING AMERICA - Chasing the dream of music and motos

03-15-2012, 03:11 PM	#36
viola-tor ^OP Needs to ride! Joined: Feb 2008 Location: The Alamo Oddometer: 2,065	Bike is back together, charging batt now. Looks like the O2 sensors are off (unchecked) in my current Akro map. Should I try turning them on? TPS - how do I go about calibrating/testing this? The manual isn't very clear, it says "no, can't test TPS" and then goes on to mention how to do it. I can't tell if engine is supposed to be on, off, or what... I see the "TPS" box in the lower right border of the window, do I manipulate it from there? Please give me very specific instructions. __________________ WHHHAAAAT!?!?! 5 Star RR: VIOLA-TING AMERICA - Chasing the dream of music and motos

03-15-2012, 03:46 PM	#37
bikyto Dans le doute...gaz! Joined: Jun 2009 Location: Northern Cali Oddometer: 1,718	It's the tps that you are trying to adjust, right? Not the throttle cable adjustment function. I'm just trying to be clear. __________________ The race is long and, in the end, it's only with yourself...

03-15-2012, 03:57 PM	#38
Alleycatdad Unbunch yer panties! Joined: Feb 2008 Location: True Norcal, not that Bay Area/Sacto Crap... Oddometer: 1,103	HIghly recommend that you change nothing since the mechanical check and go give it another test. Change too much and you'll never know what worked or didn't.... S __________________ When in doubt, PIN IT! It may not help, but it'll sure end the suspense... Wretched Exce$$ See ADVr's around the world-ADV spotwalla page Riding Wretched Wretched Passes Bad decisions make good stories.

03-15-2012, 08:32 PM	#45
Alleycatdad Unbunch yer panties! Joined: Feb 2008 Location: True Norcal, not that Bay Area/Sacto Crap... Oddometer: 1,103	Yes. The computer sets the isc servo at a specfic starting place independent of your cable slack. Under the TESTS tab, under the test&adjust window, use the "adjust throttle cable" button. This zeros the ISC servo so that you are actually adjusting what you think you are adjusting. Under "tasks" on the tuneecu site: http://www.tuneecu.com/TuneECU_En/tasks.html "Adjusting the throttle cable - only KTM The idle speed control stepper motor will be completely retracted and the throttle valves completely closed. Switch the ignition switch off, WITHOUT exiting or disconnecting the software, and adjust the throttle cable clearance." Hope this helps. Steve __________________ When in doubt, PIN IT! It may not help, but it'll sure end the suspense... Wretched Exce$$ See ADVr's around the world-ADV spotwalla page Riding Wretched Wretched Passes Bad decisions make good stories.

03-14-2012, 06:42 AM	#34
MrLebowski Gnarly Adventurer Joined: Jul 2011 Location: Lander, Wyoming Oddometer: 152	I'll add to the Hose debate... Mine is in "S" configuration (injected bike), works fine. Doesn't seem to effect my mileage, I routinely get mid-high 40's with my setup.

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