Twinsig Posted August 9, 2012 Posted August 9, 2012 Will try to be brief but thorough. Per the book, Left side butterfly closed set TPS to .010v. Adjust stop screw to TPS .350 I set TPS zero voltage at .350 BBS's are 2 turns out. Rt side throttle stop set at zero/butterfly bottomed out = bike @ idle & was pretty-far out =I adjust/increase RT side since it was "bottomed-out" =Imbalance became worse So, to bring into balance with stop screws i would have to decrease RT side to BELOW zero which of course obviously isnt possible. I then increase left side using the cable adjuster and achieve balance at idle. I check TPS volts .480 and still have RT side stop at zero. Sounds like mis aligned butterfly? AKA, too much flow on left side? TB rebuild is one of the first things I did to this bike, months ago not sure I had the TPS set up correctly after that. This effort due to installing new cables. All tensions & slack are correct. This may not be enough detail b/c the person writing will omit the obvious that's obvious "himself" only. UPDATE: While sitting down/problem solving (my throne) "I didn't reset the Motronic".
dirtrider Posted August 9, 2012 Posted August 9, 2012 Morning Twinsig You have LOT going on there. First thing is- no 0=0 on the 1150 so don't even try. Next- DO NOT use the cable adjuster to make any idle balance adjustments (just won't work) My suggestion to you is to start over- First -remove the TB's then center the throttle plates in the TB bores by backing the idle stop screw off then holding the TB's up to a light & looking through them as you move twist the throttle plates to show the least amount of light leakage around the throttle plates. Then turn each idle stop screw in until it JUST touches the throttle lever, then in an additional 1/4 turn (precisely) Next- set the BBS screws to 1-1/2 turns out from seated. Now install the TB's & do a quick TPS adjustment to .365 volts (use a good quality volt meter so you don't have voltmeter load skewing your voltage readings). Make sure you also have lots of slack in the throttle cables. Now "ign key on" (no start) & do a TPS leaning. Then start the engine & see where you are idle RPM & balance wise. Tweak the idle stop screws to achieve proper idle RPM & balance. If you need to move the L/H base idle screw stop then re-set the TPS to .365 volts then do a new TPS relearn. When you get the idle RPM correct & the cross side balance correct re-verify you have .365v at the TPS & do a new TPS re-learn. ONLY THEN do an off idle (above idle) balance using the cable adjustment only. If you start with the throttle plates not fully centered in the TB bores you will chase that thing around for hours with little gain.
roger 04 rt Posted August 9, 2012 Posted August 9, 2012 And remember to do a TPS relearn you must pull Fuse 5 for a while. I don't know the number but after not having some Adaptation Values reset, I've gone to a couple minutes.
Twinsig Posted August 9, 2012 Author Posted August 9, 2012 Morning Twinsig You have LOT going on there. First thing is- no 0=0 on the 1150 so don't even try. 10-4, so let it be written! Next- DO NOT use the cable adjuster to make any idle balance adjustments (just won't work) Understood, this actually IS what led me to mis-aligned butterfly theory. My suggestion to you is to start over- First -remove the TB's then center the throttle plates in the TB bores by backing the idle stop screw off then holding the TB's up to a light & looking through them as you move twist the throttle plates to show the least amount of light leakage around the throttle plates. Then turn each idle stop screw in until it JUST touches the throttle lever, then in an additional 1/4 turn (precisely) Next- set the BBS screws to 1-1/2 turns out from seated. Now install the TB's & do a quick TPS adjustment to .365 volts (use a good quality volt meter so you don't have voltmeter load skewing your voltage readings). Make sure you also have lots of slack in the throttle cables. Now "ign key on" (no start) & do a TPS leaning. forgot about that part. Then start the engine & see where you are idle RPM & balance wise. Tweak the idle stop screws to achieve proper idle RPM & balance. If you need to move the L/H base idle screw stop then re-set the TPS to .365 volts then do a new TPS relearn. Ahh-Hah! This is exactly why I quit (while I was ahead) and posted the problem here. "Dirt Rider will know what to do"! When you get the idle RPM correct & the cross side balance correct re-verify you have .365v at the TPS & do a new TPS re-learn. ONLY THEN do an off idle (above idle) balance using the cable adjustment only. Yes, for off-idle only. If you start with the throttle plates not fully centered in the TB bores you will chase that thing around for hours with little gain. I could see the Rabbit running around like he was on meth! And the simultaneous Goat-roping didn't interest me either! Thanks for all you do bro! You too Roger, although some of your detailed data makes my head spin round & round...
Twinsig Posted August 10, 2012 Author Posted August 10, 2012 Rt plate not fully seated. Rain & darkness postpone completion. The Rabbit and the Goat are standing there patiently waiting.
Twinsig Posted August 10, 2012 Author Posted August 10, 2012 Good to go, the rabbit and the goat left in disappointment. I think they lurk around the forums so beware!
Rocky J Posted January 21, 2013 Posted January 21, 2013 thanks I will follow this exactly. I am new to this forumn and I do appreciate the procedure.
Twinsig Posted January 21, 2013 Author Posted January 21, 2013 No prob, keep in mind this thread was me trying to zero an 1150, not possible, sort-of, but, dirt circumvented my ignorance and fixed it from the forum. You,,,,, simply need the TBSD doc, for the 1100's, not too bad. Once you've learned the concepts of zeroing and syncing you will see that light bulb above your head and say. Ah-ha!
SANTA Posted January 21, 2013 Posted January 21, 2013 Morning Twinsig You have LOT going on there. ... Next- set the BBS screws to 1-1/2 turns out from seated. Now install the TB's & do a quick TPS adjustment to .365 volts (use a good quality volt meter so you don't have voltmeter load skewing your voltage readings). may seem like a dumb question but but after you've set the idle stop screw +1/4 turn out, to acheive the TPS =.365v you would have to adjust the idle stop screw some more so now left and right idle stop screws are not equal ??
dirtrider Posted January 21, 2013 Posted January 21, 2013 Evening SANTA It's a bit more involved than JUST turning the idle stop screw out an additional 1/4 turn. IF the L/H idle stop screw is moved FOR ANY REASON that changes the TPS voltage so the TPS then needs to be loosened & re-set to .365v before doing anything else. The reason you don't end up with uneven idle stop screws is: with the BBS screws CLEAN & BBS PASSAGES CLEAN there is even air flow through the BBS system so IF you move the L/H base idle stop screw you then ONLY use the R/H base idle stop screw to get an even idle balance across side to side.
SANTA Posted January 22, 2013 Posted January 22, 2013 okay dirtrider i think i follow what you are saying, once one has the butterfies set + 1/4 turn then you would rotate the TPS sensor only to reach the .365v i know the 0=0 was suggested for the r1100 engines, so is there a proper procedure to set the baseline of the r1150 throttle bodies assuming one has had a idle stop go funny? maybe i should start a new thread to discuss my question
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