Lumpy runner!!

[peds]

Just fitted new battery and carried out TPS reset and 12 Minute tune......

Do these readings seem ok to someone that knows what they are talking about??





Hell.......IDK!!!  :D  :D [/url]

[Bixxer Bob]

Your long term fuel trim looks low, mine was 4.18 and is currently about 4.3 if I remember correctly.  Mine wouldn't run if it was 3.6 which just goes to prove these damn bikes are individuals!

Also, the O2 sensor should be at about 0.45  If it's constantly at 8ish then it's trying to richen the mix and you're looking at an air leak somewhere.

If it's just a snapshot ie when you took the freeze screen, and is usually around .45 then ignore it.

[peds]

Your long term fuel trim looks low, mine was 4.18 and is currently about 4.3 if I remember correctly.  Mine wouldn't run if it was 3.6 which just goes to prove these damn bikes are individuals!

Could this be the cause of mine almost stalling if you blip the throttle on idle and surges on lower revs at constant throttle??

Also, the O2 sensor should be at about 0.45  If it's constantly at 8ish then it's trying to richen the mix and you're looking at an air leak somewhere.

If it's just a snapshot ie when you took the freeze screen, and is usually around .45 then ignore it.

Gonna check the system for air leaks tomorrow.....this was a symptom I had with one of my cars years ago, come to think of it...that had a fractured air pipe too........
 :shock:  :shock:  :D  :D

[Bixxer Bob]

LTFT - yes.  Try raising it a bit at a time until it blips without hesitating on pickup or banging on overrun.  Nice and clean in other words.  You'll have to take your time, don't rush it as once you get close even small amounts make a difference.  Ideally it should be done with an gas analyser but feel and smell work pretty good.  I wouldn't be surprised if you come back with a setting of 4.2 - 4.6

Do the air leak check first though and have the motor good and warm.

[peds]

Seem to have cured my surging, and nigh-on cutting out when blipping the throttle on idle! Trouble is, I did a few things and don't know which of them cured it, maybe a combination of the lot!!!

Removed the Air filter box baffle plate
Replaced throttle body gaskets
Put self amalgamating tape around all the air tubing (to seal any possible leaks)
New Battery (turns out the one fitted was a YTX 12 BS, not a YTX 14 BS, and it was knackered!!)
Reset the TPS
Carried out 12 Minute Tune

I left the LTFT at 3.6 for now, may need to adjust this, I'll see!!

At the moment, I am getting about 230 Miles to a tank, and that's at a steady 85-90 MPH! - ALOT better than my old VTR!!

As yet all is well however, I have not had chance to get her on a good run but I will know when I go to work on Monday!

FINGERS CROSSED!!!

 :D  :D

[metalguru]

Noticed you are running the STD map, these run very lean.

Do you run a TOR exhaust or standard?

Even with the STD exhaust the TOR map will make a BIG difference as it is very lean running anyway.

I have a Carbon Can Co tri oval without baffles and have richened up and altered the TOR map quite a bit, even dynamic testing to get it close....(RIP gastester).

[Bixxer Bob]

Is that "Rest in Peace" gastester...  :lol:

[metalguru]

EEER yes it is,
When I was testing the mix at higher throttle ranges I thought it would be a good idea to have some dynamic results.
With the laptop in the box and the gastester strapped to the bars went to find some tarmac.
All went very well untill the very end (luckily) and obtained some good results, but the bungie that had been fine and not complained decided it didn't like where it was and broke.
The resultant carnage involved the strap going awol and the gastester which is now free to go, did. I think the combination of old cheap plastic, 90mph and tarmac all came to a head and the gastester was in a million bits. Luckily still have the home made sniffer tube.....Sniff gastesting at speed? ermm.

[Bixxer Bob]

Yer I remember you telling the story the first time  :lol:

Tuneboy has some limited facility for datalogging on the move but I've never tried it.  One of these days..... :roll: