| Author | Message | ||
     Kevinfromwebb |
Okay, after giving the unit a thumbs up a couple of days ago had something happen today and wondered if anyone had this happen to them or had any ideas. I"ve got a 12R that's stock except for the snorkle removed,K&N filter, and tfi unit. Went out for a brisk ride today and it would surge or hunt between 4.5K and 5K... It would only do it when I was trying to keep a steady rpm, speeding up or slowing down it was fine. One caveat, it was REAL windy today, 30mph or more,hmmmm... I've got the unit on the stock settings 3,7,4,7, I believe... Anybody got any ideas??? Otherwise it seems to run fine... Kevin | ||
| Rr_eater |
Im with Kevin, as mine does this too, only at 4-5K, so about the same. Help us both out here people, PLEASE! Bruce | ||
| Trenchtractor |
Sounds to me like a tuning issue. The settings you are using are the 'base line' settings. I would say tune the bike using the instructions, eg, my fist pot is spot on when a hairs width below 3... The second pot is a bit subjective without a dyno. The third is another one that might be a bit tricky for the inexperienced tuner. It works like the main jet of a carb. Basically, get it tuned. But even that is a little interpretive, some tuners will go for performance, others will go for cruise, it's up to you to tell them what you want. More often than not a bike that has the very best performance map will hunt when cruising. | ||
| Kernalbuell |
I had the same problem. The butterfly in the exhaust wasn't functioning properly due to a loose wire grounding out on the frame. Secured the wire and its right as rain. | ||
| Norrisperformance |
I have tweaking on my tfi.What I found out is the tfi is hard wired to switch to the main at 4000. You can not change that setting on closed loop system. I have found you can almost get rid of it with second pot, accelerator pump just a little more. I will know more Wednesday taking her to the dyno lol}} | ||
| Kevinfromwebb |
Cool... Let us know what you find out... I tried to replicate the problem yesterday afternoon with a couple of passes on the highway and couldn't get it to do it again... Hmmmmm Kevin | ||
| Johnk3 |
what color wires go to front/rear injectors? | ||
| Ingemar |
Doesn't matter. As long as you connect the original buell wires to the same injector they off from. For the TFI it doesn't matter. I asked the same question to Dobeck and that was their answer. | ||
| Rigga |
still got a lot of popping on the overun on my tfi equiped 9..... remind me is this a lean condition or caused by excesss fuel igniting in the pipe due to overfueling ?? sounds ok but dont really want it to continue and cause problems if its running lean.... more enrichment on the green pot perhaps?? | ||
| Steveshakeshaft |
Rigga, be absolutely sure you haven't got leaks at the inlet manifold or the exhaust to head connections. Either could cause what you describe. | ||
| Stoobr2 |
Isn't thier a Q&A forum on the dobeck website? | ||
| M1combat |
There is, but it doesn't get checked anywhere near often enough. Call them. They offer great support over the phone. | ||
| Briz31 |
Dobecks: George Levings glevings@techlusion.com I got this from George (4th Pot) Set between 7:00 o'clock and 8:30 o'clock is the primary range for the fourth pot adjustment. anything below seven o'clock will most likely trip an engine code. In the instructions it shows this adjustment needing to be set at 7:00 o'clock not 3:00 o'clock. let me know if the engine light issue is still occuring. thanks George Levings Tech support 877-764-3337 | ||
| Norrisperformance |
After playing around on the dyno. And great telephone support from Dobeck. This is the settings we found that worked on my bike. 4 7 6 8.5 Drummer, K&N, race ecm | ||
| Johnk3 |
green light flashing on my tfi. Connections are all tight the injectors. swapped tfi connections to the injector leads, light still flashes. I then removed the tfi and the bike runs fine. What gives, am i missing something or do I have a bad tfi? | ||
| Norrisperformance |
Was the bike running when the green was flashing? | ||
| Glitch |
John, check your ground wire. | ||
| Dcmortalcoil |
All the lights flash (if I recall correctly) at idle. As soon as the engine goes above the idle, the light will turn solid green. It's normal. | ||
| Jerseyguy |
Mike, I'm going to try to record some highway runs today with your settings. The roads are still a mess here but I might be able to get some data. | ||
| Johnk3 |
dobeck said my box was OK. light goes solid when the bike runs, yellow and red come on and off as I work the throttle. While I was mucking with this I disconnected the fuel line and hung it over the throttle body. I made all the connections and then turned the bike to on to check if it was still flashing. The fuel pump came on and dumped a ton of fuel into the throttle body. I soaked a lot of it up with a towel. When I reconnected it and started the bike I had flames shooting out the tale pipe ala paul yaffe on the biker build off. looked pretty cool. Bike is running OK, I need to play with the pots some more. | ||
| Johnk3 |
Who has one of these on the 9? what exhaust? | ||
| Lpd22 |
I plan on purchasing a tfi in a couple of weeks for my 9. once i receive it and install it ill let you know how things go. Where did you put your tfi unit at? I was thinking of putting mine in the trunk under the passenger seat. Would that work? | ||
| Spike |
Mike, What was Dobeck's reason for going to 8.5 on the 4th pot? Mike L. | ||
| Buellman39 |
Lpd22 Put it right in front of the battery. If you put it in the trunk you will not have enough wire | ||
| Bobup |
I just installed mine last Saturday...in my XB9SX. So far I've only used the 'starting' point settings and it seems to run OK so far...when the weather gets abit better and I have time I intend to fine tune the adjustments. As for mounting...its kinda laying loose between the left side rail and the battery. it would not fit infront of the battery and allow the seat to go back on. when I go to fine tune, I will zip-tie it to the outside of the seat rail so I can have immediate access to it while out 'tuning'(no need to remove the seat. After I have it tuned, I will put it somewhere in the airbox. Either on top of the filter cover(in the depression), or under the cover..not sure which just yet. and....an xtra stock muffler is in transit to become a Drummer!!!  | ||
| Norrisperformance |
Spike At a steady 4 grand on the dyno, the bike was surging. George @ Dobeck said the ecm was trying to lean the mixture out. Setting the 4th pot to 8.5 changed the value the ecm was receiving from to 02 sensor, telling the ecm that it was not rich. 9 is the max setting on the 4th pot. George said any higher than 9 could set a fault code. Picked up 6.5hp @ 4000 and 2.5 @ 6800 with the TFI. | ||
| Glitch |
Picked up 6.5hp @ 4000 and 2.5 @ 6800 with the TFI. Killer! Six and a half horsepower would normally cost about $650oo I think I remember someone once saying as a rule of thumb, you could expect to pay $100oo per HP. | ||
| Jcwise |
I've installed the TFI and TiForce exhaust system and after three test rides my XB12s feels slower intel about 4,500rpms. Some popping at idle and at 2-3,000rpms while riding; but disappeared by twisting loads of throttle. The popping was accompanied by surging, should the O2-pot need turned up from baseline settings. | ||
| Briz31 |
I have a XB9, on this setup: Techlusion EFI 1045ST K&N + 12 Airbox Jardine RT.1 settings on TFI: 1. 3 2. 7 3. 4 4. between 7 & 8 (keeping with the range george gave me) The bike runs very well, only a small stumble at 4000 rpm when the TFI kicks in, but it's not bad. This doesn't happen every time though, less now since I have raised the 4th pot. (currently 7:45) | ||
| Norrisperformance |
Hey Jcwise Crank her to 8 or 8.5 and give it a try. What are your settings? Sounds like ya need to increase pot 2. |
