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Bike running to lean

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14K views 12 replies 9 participants last post by  epic_monkey  
#1 ·
Need some help guys, I havn't been on the forums in years mostly because i've had trouble free riding on my 2010 690. Well I recently moved to sea level from 6000 feet and just got back from a ride and... I'll let the photo's do the talking but its running leaner than a tit in the desert and I have no clue how to correct it as this is my first fuel injected bike. Its completely stock other than a K&N air filter. Before I moved it was running on the rich side kinda sooty but now HOT and lean. Well any help would be appreciated.
 

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#3 ·
First, let it idle for 15 minutes after start up. That's supposed to be the procedure for recalibrating the FI.
 
#4 · (Edited)
It's stock other than an air filter I think. My pipe also glowed like that before I fitted the Power Commander, but I had some aftermarket parts.

There is a lot more air at sea level, that's how my plug looked when my bike was stock. Try the reset procedure for sure, otherwise I think there are some TuneECU map options out there for your year of engine.
 
#5 · (Edited)
Never noticed that but will have to check it next ride. Thats HOT.
 
#6 · (Edited)
Well I recently moved to sea level from 6000 feet and just got back from a ride and... I'll let the photo's do the talking but its running leaner than a tit in the desert and I have no clue how to correct it as this is my first fuel injected bike. Its completely stock other than a K&N air filter. Before I moved it was running on the rich side kinda sooty but now HOT and lean. Well any help would be appreciated.
While I am going to agree with you, I am going to hesitantly suggest you've arrived at your conclusion hastily; you have not mentioned HOW you got the plug to look like that. If it was running nicely before you moved from 1800M to sea level, it will be lean now. Although I come from a caribe-perspective, and I think FI-system can compensate to some degree for atmospheric changes. If you're still in Utah, that air is going to be nice and dry; "drier than a Nun's nasty". And as you have suggested, nice and thick too. The absolute best conditions you can get for internal combustion, little wonder they hold land speed races on the Salt Lake.

WARNING: Be careful of reading plugs without having done a properly performed plug-chop. [Link behind text] If you spend even seconds idling the Duke before shutting down, you are going to get a dry plug. That is the nature of the Duke's tune. The Duke has been tuned to run on the whiff of an oily rag.

There is a lot more air at sea level, that's how my plug looked when my bike was stock. Try the reset procedure for sure, otherwise I think there are some TuneECU map options out there for your year of engine.
Chix has provided you with what seems to be the most extensive method of fiddling with your tune. It is the most pricey too. At the other end of the spectrum are Kev's Mods. They are basic and quite effective.

But I agree; it is very likely you're gunna need more juice before rolling out onto the Lake. :)
 
#7 ·
Actually the salt flats are at 4200 feet. :)

All fi bikes should compensate for elevations from sea level to around 6000 feet. Above the they just get rich as hell. The bike should be able to handle sea level just fine. (I live at 35 feet above sea level). Something else must be amiss.
 
#9 · (Edited)
Ok after reading through the Tune ECU threads in depth, I've come to the conclusion that I dont have the time or patience to do this. Also I rather not be screwing with maps that could potentially mess up my bike. So I think my plan is

Do a fuel system service/cleaning, check my fuel pump
Order Exhaust take to KTM have them load the Akra map..

Side note do I NEED an exhaust to run the Akra map?

I think the airbox/K&N combo is screwing me up after some more reading. I'm only now noticed since I had the change in elevation when I moved out to seattle. could have always been running lean. Which talking to a few people the stock US map runs slightly lean for emissions

I leave anything out?

Will this be the final solution to my issue?

Again sorry for all the newb questions.
 
#10 · (Edited)
You cant read the outside of the plug, yes you can see detonation on that part usually pepper spots of aluminum. You need to look down inside the threads at the insulator with a jewelers loupe. Hard to read that way too best to cut the crimping and pull the porcelain to read the band in that far. Better to use a wideband O2 set in the proper size bung welded to your header. I have this one from these guys cheapest when I ordered. innovate LC-2
http://streetrays.com/newstore/index.php?route=product/search&search=innovate%20lc2

You probably want this if you tune your fi anyhow. do a temporary mount up and pull off the bike when you are done. you will have it for the next bike than too. Just be forewarned T2 oil will make short life of the sensor.
 
#12 ·
I was worried about the header glowing, I wasn't even driving aggressively. to top it off it was 48F out so and I was driving during the night.

Lately feels kinda sluggish and surges slightly if I hold the throttle steady at a set point. Wants to die if i pop the throttle or WOT from a dead stop. Ive never done a fuel system service on it so I was hoping that might fix it but I was concerned because it has the airbox snorkle cut out and a K&N drop in filter. So i was thinking it threw off the mixture at the lower altitude.

Only reason I was questioning something was wrong is I recently bought my wife the 390 duke and that thing feels almost as powerful as my bike so i started thinking something was wrong. Her bike can power wheelie in 2nd gear.. something mine has never been able to do.