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       #Post#: 2645--------------------------------------------------
       Stalling Off Idle?
       By: FatDrunkStupid Date: April 12, 2015, 6:11 am
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       Apologies for all the questions from a forum newbie. Y'all have
       caught me during a period of clueless spannering.
       I have a 2011 with an Akrapovic silencer. The bike suffered from
       terribly snatchy FI when I acquired it but I've almost
       completely cured this by switching the paper air filter for a
       KTM "off road" foam filter, installing a G2 throttle cam (using
       the "medium" cam profile) and installing the Evo 1 maps via
       TuneECU. With this setup the bike (finally!) runs perfectly with
       wonderfully smooth throttle response and none of trhe
       previously-experienced popping and banging when overrun.
       However... when the engine is hot it has a tendency to stall off
       idle or at low revs (when approaching a road junction for
       example) and while it restarts easily enough, it usually takes 2
       or 3 attempts before it will run without immediately re-stalling
       when I touch the throttle. This is somewhat irritating.
       When I installed the Evo 1 maps I did the throttle calibration
       and 15 minutes adaptation processes (during which the bike
       stalled a couple of times but was immediately restarted as per
       recommendations). While doing due dilligence and searching the
       'net for a solution to this problem, it became clear that
       there's no universally-accepted solution, probably due to the
       fact that there seems to be so many variations of the symptoms.
       So, my question is whether any of my betters (but not
       necessarily elders) on here have any suggestions on how to
       approach this? TPS check/reset? Would simply raising the idle
       speed resolve it? I ask rather than try because while I've been
       riding and stripping small-bore 2 stroke trials bikes for years,
       the apparent complexity of this FI-ed 4 stroke still scares me
       right now. All comments and suggestions are much appreciated!
       #Post#: 2646--------------------------------------------------
       Re: Stalling Off Idle?
       By: Guymcfly Date: April 12, 2015, 7:12 am
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       First up, does it happen when you chop the throttle?
       Second, have you changed your clutch lever (I'm serious about
       this)?
       And also try this...because I think some dirt/dust/crud has got
       in your tank during assembly and may have fouled your injector.
       Pop you air box. Unscrew you fuel injector screw (use the
       supplied screwdriver for this), unplug harness and pull out you
       injector. Watch out for the o ring...don't loose it. Activate
       your injector with a 9 volt battery and a couple of wire/clips
       and and spray contact cleaner thru it. Then spray compressed air
       thru it.
       Or drop down to the nice man at the local garage and ask them to
       clean it. It should cost you squat.
       Reassemble. Make sure you seat the o ring properly or it will
       leak.
       Enjoy as you marvel at the benefits of having removed the crud
       from your injector.
       Remember to do this every time you service, clean or otherwise
       tinker with you orange beasty.
       #Post#: 2647--------------------------------------------------
       Re: Stalling Off Idle?
       By: Guymcfly Date: April 12, 2015, 7:19 am
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       How to remove you Airbox link.
  HTML http://www.supermotojunkie.com/showthread.php?110242-2010-690-smc-make-over...&p=1263642#post1263642
       And a discussion on cleaning the injector and how others have
       done it.
  HTML http://www.supermotojunkie.com/showthread.php?117817-690-peeps-clean-your-injectors
       #Post#: 2649--------------------------------------------------
       Re: Stalling Off Idle?
       By: FatDrunkStupid Date: April 12, 2015, 2:43 pm
       ---------------------------------------------------------
       Thanks for the sage advice. I'll give it a go and report back
       :)
       #Post#: 2910--------------------------------------------------
       Re: Stalling Off Idle?
       By: FatDrunkStupid Date: June 15, 2015, 12:40 pm
       ---------------------------------------------------------
       OK, I know it's been a while but I thought I'd better report
       back on this one since it seems to be a pretty common problem.
       I followed all the advice in this thread and elsewhere. I did:
       1. Airbox out, clean injector - problem marginally improved but
       still there.
       2. Airbox out (again), adjust TPS (THAD/APAD values) - all OK,
       no improvement.
       Then, while re-mounting the airbox and preparing to break out
       TuneECU yet again I noticed a gap between the (Evo 1) lid and
       (foam) filter on both sides. No idea why I didn't notice this
       before. I pulled the filter and the inside of the airbox was
       clean so I put it back together and ran a bead of silicone
       around the 'box/lid joint. Waddaya know? Problem solved!
       Constant idle speed, no choking or stalling!
       So, too lean at low rpm apparently. One more for the checklist.
       Many thanks for everyone's help!
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