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Steve
California,
USA
Posts: 5
Tiger 1050 (07->)
27 Sep 2008 02:01 |
I just bought the Tuneboy Triumph starter kit from the group-buy going on over at triumph675.net and I have a couple of questions (Tiger 1050)....
With the Keihin ECU you cannot 'save' your stock tune, so if I wanted to just run the stock tune with the O2 sensor turned off, do I have to load the base tune map from the tuneboy site (which may or may not be the same as the stock triumph tune?).
I am initially just trying to get rid of the low-rpm jerkiness, so am I correct in trying to turn the 02 sensor off first?
Thanks!
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 Homertrix
South Bucks,
United Kingdom
Posts: 9,153
Premier Member
Daytona T595 (97-98)
27 Sep 2008 10:58 |
[edited]:
The maps supplied by Tuneboy are the Triumph stock tunes.
Its unlikely the low rpm jerkiness is due to the o2 sensor.
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Cerberus
Connecticut,
USA
Posts: 5,282
Premier Member
Enthusiast
28 Sep 2008 14:53 |
clarify please what you mean by low-rpm jerkiness?
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Steve
California,
USA
Posts: 5
Tiger 1050 (07->)
29 Sep 2008 04:31 |
What I mean by 'jerkiness' is at low RPM (2000 ~ 3500) the bike will not run at a steady RPM, it is always hunting/surging. If you are at a steady-state RPM in this range, and then accelerate (just a normal roll-on) it will not accelerate smoothly, it's jerky.
Hope this helps.
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Cerberus
Connecticut,
USA
Posts: 5,282
Premier Member
Enthusiast
04 Oct 2008 14:50 |
so is this is at a constant throttle position as well ?
or only while accelerating?
the jerkiness on acceleration can often be attributed to lean running conditions leading to lean misfire.
ethanol in the fuel exacerbates this problem.. i know we have this problem in the northeast.
disabling the O2 sensor will not really fix the issue per se.
i would fatten up the TP/RPM regions that are relevant to the problematic areas by 5-10%
also, smoothing out the timing curve and bumping it a couple degrees advanced almost always puts a smile on the rider's face
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