Triumph Scrambler

Discussion in 'British Beasts: Triumph Tigers' started by danger_dave, May 29, 2006.

  1. htono

    htono n00b

    Joined:
    Apr 6, 2012
    Oddometer:
    4
    Location:
    Colombia
    Hi and please help me,

    My new Scrambler starts at idle, but when cold dies a sudden death whenever 1800 RPM is reached. After it starts warming up the rev limit starts to rise, until at some undetermined point it runs well.
    After I stop and the bike cools down for a few minutes it goes through the cycle again. When I use the choke at mid position it will run well for a few seconds near 2000 RPM and then die. If I start it again with the choke at half position it will start and climb revs until it hits 2000 and then dies again. At that point I need to warm it at idle for a sustained period of time.

    It started doing it brand new. I bought the bike with an Arrow 2-1 and remapped by dealer. My dealer couldn't replicate the problem, simply re-installed the map and gave it back stating that the bike runs properly.

    During the holidays, with the dealership closed for the holidays, the issue started worsening and doing it more and more often. Still, I forged ahead and did multiple mods:

    AI, O2, Pod filters, TTP Tune 4 (through TuneECU), Eatern Beaver relay cables, 7" headlight, LED turn signals, Ignition relocation, Hammarhead handlebar, etc.

    The bike ran well through the holidays and mods, albeit with the starting issue always present, and gradually worsening.

    Today it simply will not get out of the rev limited mode and simply cannot ride the bike.

    The dealership is still closed for the holidays.

    Tune ECU reports no errors. I've tried (with no success):

    1. Remapping
    2. Checked MAP hoses
    3. Removed gas cap
    4. Removed gas tank relief hose
    5. Checked fuses

    What could it possibly be?

    Thanks a lot.

    Henrique, the desperate one.
  2. tvscum

    tvscum Been here awhile

    Joined:
    Jan 6, 2012
    Oddometer:
    141
    Location:
    San Diego, CA
    Have you checked the the TPS (Throttle Position Sensor) voltage? You can do this in TuneECU. The voltage should be at 0.60 with an acceptable range of 0.58 to 0.62 (though some people on Triumphrat have set it higher).

    Some info is here:
    http://www.triumphrat.net/twins-tec...s-adjustment-efi-bonneville-and-dfco-mod.html

    Adjust the TPS to 0.60. Then, do an "adaption reset" in TuneECU. Then, perform the adaption procedure with the bike cold (idle the bike for 10 to 15 minutes) until the TPS light in TuneECU turns green.
  3. Boola-Boola

    Boola-Boola Scramblin' Man

    Joined:
    Nov 11, 2008
    Oddometer:
    115
    Location:
    Dorset County, Original England
    So... it had a problem from new, which wasn't resolved to your satisfaction and is getting worse, and you STILL pressed ahead with a shedload of mods!!?? :huh What were you thinking?? :fpalm

    Not meaning to sound harsh here, but I wouldn't have gone ahead and done all those mods until I was satisfied that the machine was 'right'. You say yours had an issue from day one, pretty much, but you still couldn't wait to quite possibly void your warranty with mods anyway. With it left as supplied you would have had warranty rights to get it sorted - maybe even extending as far as getting a complete replacement under warranty if the dealer couldn't figure the problem.

    If I were in your shoes, I'd now be putting it back to factory stock condition in time for the dealer reopening (do they always have such long winter holidays?) and hoping that Triumph's warranty could get it sorted properly or else replaced.

    We can surely eliminate the original tune, airbox/filter, AI or O2 causing this. The cold start is still there, and whatever it interacts with (TPS perhaps?), so could they have an involvement in the problem? I don't know if the cold start actuator just advances the throttle position slightly when pulled - if it does then maybe it could take an incorrectly set TPS (as tvscum suggests checking) outside of limits that the ECU could cope with on a cold engine? Interesting problem to try and get to the bottom of - but I'd still get busy refacilitating the dealer/warranty route ASAP.

    Hope you get it sorted anyway, dude - either from some wisdom on the forums or by the dealer under warranty.
  4. vonfink13

    vonfink13 2013 Scrambler

    Joined:
    Jan 13, 2013
    Oddometer:
    13
    Location:
    Snyder, NY
    pulled the heatshields and mufflers today...tmrw the whole lot gets a nice flat black powder coating...but first...a bafflectomy..!!!

    [​IMG]
  5. B02S4

    B02S4 Aye

    Joined:
    Mar 9, 2009
    Oddometer:
    1,142

    Maybe, maybe not. Until the battery is load tested neither you nor the OP can rule that out.

    EFI bikes don't have a CDI.

    If it is an EFI bike & the battery load tests OK then I would check each and every electrical connection related to ignition, including safety/interlock switches.

    The bike is not posessed. There is a reason.
  6. Jholmes105

    Jholmes105 GORIDE

    Joined:
    Aug 5, 2008
    Oddometer:
    76
    Location:
    Galena, Ohio
    OK, finally scored a good deal on a new Arrow 2-1 for my 2006 Scram! I plan to install and want to do the AI removal all at same time. Will I need to rejet the carb? Any suggestions for what else to do during this install of the Arrow? Any tricks to install?

    Scrambler before the install!

    [​IMG]

    Thanks
  7. vonfink13

    vonfink13 2013 Scrambler

    Joined:
    Jan 13, 2013
    Oddometer:
    13
    Location:
    Snyder, NY
    the baffles came out today...the bike sounds way better... [​IMG]
  8. Mastodon

    Mastodon Mother F'n Dinosaur

    Joined:
    Mar 31, 2010
    Oddometer:
    671
    Location:
    Tex-Mex Land
    Alright, came home from my trip on friday, and my battery had barely dropped from where it was when I left it on Monday. 13.22V down to 12.95V. Plugged it back in, did some testing to look for current draws, and couldn't find anything. But while I was gone, I ordered a new regulator, one of the efficient MOSFET types. After all, if I spend a good portion of my time stopped at traffic lights, and my stock r/r is only putting out 12.5V, then my battery is draining itself while I'm stopped to a point below the 12.6 ECU cutoff. Spent this morning swapping out the parts, and went out for a test. (It was also a chance to break in the Tourances I had mounted yesterday too.) I left home with my battery at 12.78V, came home about 50 miles and just shy of two hours later, and my battery was sitting at 13.32V. This is the first time I can remember seeing my battery higher after shutting off the bike. Hopefully this means I wont have to precharge the battery before each ride, or short out the starter solenoid for a start anymore.

    With this problem fixed, time to think about farkles. Up next is a baffelectomy and blackened heat shields. Then maybe a Metal Mule rack system and Kriega panniers. At the very least, I just plan on riding more. 6000 miles in 3 years is too few. I'm want at least that many miles this year alone
  9. B02S4

    B02S4 Aye

    Joined:
    Mar 9, 2009
    Oddometer:
    1,142

    Great, which one?
  10. Rockman

    Rockman Been here awhile

    Joined:
    Jan 26, 2007
    Oddometer:
    351
    Location:
    Inverell, NSW Australia
    My Scram has had this problem since new (2010). It seems to be temperature related. The battery will hold its charge for weeks without use in warm weather (say +20 deg c) but loses it over night in cold weather. I havent found a practical solution yet other than putting it in a shed overnight in winter, or putting a trickle charger on it.
  11. Graniteone

    Graniteone 3,2,1...Beer me!

    Joined:
    Jul 25, 2011
    Oddometer:
    467
    Location:
    Golden, Colorado
    A pic from my ride yesterday and a pic from blacking out the chrome front turn stems. Need to ditch the front brake reservoir. Looks like a urine sample on my handle bars. Thinking one of the Rizoma would look good.
    [​IMG]

    [​IMG]
  12. b0rderman

    b0rderman Been here awhile

    Joined:
    Aug 30, 2010
    Oddometer:
    154
    Location:
    Denver, CO
    next time i go riding in january i'll be sure to make it back before nightfall...burrrrrrr
    [​IMG]
    (by the way: that damn BC LED taillight is already more than half burned-out, only ~3k miles on it)
  13. O-Man

    O-Man Adventurer

    Joined:
    Jan 14, 2008
    Oddometer:
    57
    Location:
    So Oregon
    Sorry Grani---, but the dual headlite setup does nothing for the Scramblers looks.:eek1u
  14. tvscum

    tvscum Been here awhile

    Joined:
    Jan 6, 2012
    Oddometer:
    141
    Location:
    San Diego, CA
  15. Graniteone

    Graniteone 3,2,1...Beer me!

    Joined:
    Jul 25, 2011
    Oddometer:
    467
    Location:
    Golden, Colorado
  16. Mastodon

    Mastodon Mother F'n Dinosaur

    Joined:
    Mar 31, 2010
    Oddometer:
    671
    Location:
    Tex-Mex Land
    Went with the one from http://roadstercycle.com/. You'll have to modify it just a little if you want to place it in the stock location, since its a little narrower, and a little taller than the OEM one, but looks ok enough. There might be able to find a better place to put it, but I wanted to ride today while it was still nice out so I hurried the job a little.

    Ya know, when it lost that .5V in those 6 hours, it was around freezing here. When the weather's nice it has usually been better. Tuesday should have a high of 23 deg F so we'll see if it'll start then, and how well it holds.
  17. nofate

    nofate what blackflies?

    Joined:
    Nov 3, 2005
    Oddometer:
    2,861
    Location:
    Chapleau, ON
    +1

    Everyone's tastes are different, but a big reason most of us are drawn to the Scrambler are it's old English bike styling. I dont drive much at night, but I'd like to improve the bike's headlight by installing a 7" bucket with a brighter bulb and improved reflector. This would retain the styling and improve lighting.
  18. Mastodon

    Mastodon Mother F'n Dinosaur

    Joined:
    Mar 31, 2010
    Oddometer:
    671
    Location:
    Tex-Mex Land
    Why is it that every time I say "I'm gonna paint my heat shields black", I go to the store, find the can of high temp paint, but can never bring myself to buy it?
  19. Boola-Boola

    Boola-Boola Scramblin' Man

    Joined:
    Nov 11, 2008
    Oddometer:
    115
    Location:
    Dorset County, Original England
    Mebbe cuz, er, they look nice the way they are? :1drink
  20. vonfink13

    vonfink13 2013 Scrambler

    Joined:
    Jan 13, 2013
    Oddometer:
    13
    Location:
    Snyder, NY
    personally..i think they look awesome black...but for me..i gotta do the mufflers too...dont like the chrome peeking out behind the shields...if i end up not liking em in black..there are always a set or two on ebay or i will just have to get me some arrows.....mine are getting sandblasted this week and powdercoated next week...