Triumphrat

Timtiger

Funny story!
I ordered and received my Dynotech O2 sensor bypass unit last week. On removing the tank to trace the O2 sensor wiring, the dodgy plastic fuel line connector (the one that is about to be recalled here in Australia) broka and poured fuel on my foot.

In any case the bike was immobile. Triumph would have fixed it if I could bring the bike in - which I couldn't. I gave up and just bought the 2 replacement alloy fule line connectors for about AUD$22 and fixed it myself. It took about 30 minutes.

The O2 bypass works really well. It's like having a new bike for $30. The motor runs much better 2000 - 3000 revs and is far smoother. Just plugs in with no tuning required. Excellent :-D :-D :-D

spicytiger

Timtiger,Where did you get your new sensor from? is there a website. Sorry to here about your fuel fittings,I have a set of Quick release stainless steel fuel fittings installed on mine.kinda of pricey(80USD) but worth it.I got them from a shop in denver Co. called Erico motor sports.

__________________
You are not what you think you are
But what you think, you are.....

PAKA

http://www.powercommander.com/buynowacc.shtml

Triumph Oxygen Sensor eliminator kit
Part Number 76423006

This is the one I know about. Have not tried it yet. Dealer is working on the bike this week. Wait and see the results.

Anyone who has installed these please let us know how they are working?

Paul

Timtiger

The detail above is correct.
It is not a replacement O2 sensor - it is simply a plug with some electronics in it. You need to remove the Tiger tank, trace the wiring from the O2 sensor in the exhaust header and simply plug the bypass in. It acts to "trick" the ECU regarding the O2 readings and stops it leaning out the injector fuel mixture at 2000 to 3000 RPM. The bypass is truly "plug and play". It requires not other modification to the tune.

I installed the sensor bypass 2 weeks ago and am totally happy. Idle and full power are unchanged. The power curve is much smoother and you really notice the difference when chugging along at about 80KPH. At this speed you are in toe range where the ECU used to try an adjust the fuel mixture and the bike ran rough and surged. It is now very smooth. Most excellent!!

paulie

TimTigr,

I just ordered one - - Where does the unit plug in? Will it require removing the tank?

thanks for the tip. The rough running has been bugging me. Hope this cures it.

__________________
Paul
______________________

"Either we figure out how to keep corporate cash out of the political system, or we lose the democracy."

Molly Ivins, July 2006

Timtiger

Hi,
1. Find the O2 sensor in the exhause header.
2. Trace the wiring from this. It goes under the motor and up the left sife in front of the gear shift and runs up under the tank. On my bike the actual plug unit that connects the O2 sensor to the wiring harness was unfortunately just out of reach and I had to remove the tank. The plug just sits near the frame spine.
3. Disconnect the O2 sensor plug, not that it has a small locating clip on the side of the plug to ensure it doesn't disconnect itself. Just press this clip with your finger and pull it apart.
4. use electrical tape to wrap this plug on the sensor side to protect it from the weather in case you want to reconnect it and tape it to something to locate it so it does not drop down and dangle.
5. You could remove the O2 sensor itself from the exhause header and plug with a suitably sized short bolt, but in OZ you would fail a roadworthy inspection.
6. The O2 eliminator is simply a small replacement plug unit that you snap onto the plug on the harness side of the wiring.
7. Put the tank back on.
8. No tuning or any other kind of modification is required. Idle speed is unaffected.
9. Press starter and ride. Feel the smooth power and be very happy!!!!!

spicytiger

Greetings,Well I got the dynojet sensor bypass installed. so far so good,about 100 miles and all slow speed surging and jerking is a thing of the past.I am happy. coming up on a 12k service then we will see if the "magic" fix is real...Spicytiger

__________________
You are not what you think you are
But what you think, you are.....

Boilerskull

Hi guys,
I too have suffered from a funny characteristic, whilst holding a constant speed, at around 50mph in top a sensation much like a tight chain was nothing short of annoying. Dealer checked the bike and reset the throttles, no change. It drove me to distraction so I tried an o2 eliminator, which seems to have cured the problem. I have not told the dealer of the 'fix' as it will probably invalidate my warranty! I don't know what is inside the eliminator, probably just a link to satisfy the brains that the o2 sensor is alive and well but it is worth every penny. Seems likely to me that anyone with this sort of problem as discussed in the Tiger tunes thread would be well advised to give one a go. Pity that by keeping quiet that triumph won't pick up on the problem and sort it though.
:roll:

Gearloose

I should get mine from D/Jet this week and give it a go.Now I need to go ride and get some gas out of the tank before I try removing it! :-D

Timtiger

The O2 eliminator will have a simple resistror in it. I think the Os sensor in the exhause simply changes resistance with varying oxygen levels. These sensors apparently vary quite a bit from sensor to sensor, which explains why some individual bikes seem to suffer from surging more than others. The bypass will have a simple resistor with a value that tells the ECU that the O2 level is good and don't try to lean out the mixture.