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The output voltage of a wideband sensor varies significantly with temperature so all of them use a feedback current to keep them a constant temperature. As long as you don't get it too close to the exhaust port (i.e. too hot) the only thing the extra heating of the hotter exhaust buys you is requiring less feedback current. In other words, if you place it closer to the head your alternator would benefit by needing to supply a somewhat lower current, but at the possible risk of getting an incorrect reading if the sensor is a little too hot (since the feedback circuit can't supply cooling), and damaging the sensor if it is more than a little too hot.Robbed off the net: "To work properly, wideband and A/F sensors require a higher operating temperature: 1292 to 1472 degrees F ...
So perhaps less than 18" is better.
Yours is the newer type that also goes by the code LSU 4.9. Mine is the earlier type LSU 4.2 that apparently is only good for about half the mileage. So, if it takes me 30 miles to get the jetting correct on a bike, the sensor will fail by the time I've jetted my one-thousandth bike. Yours will be good for two thousand, you lucky dog.maybe the sensor is different? Mine is a Bosch 17025
Sadly for me, I implemented the latest technology for A/F measurements shortly after it was introduced and it's still 'good enough'. So I'm stuck using technology from early in the Millennium while you get to use the latest in instrumentation. Damn you!I'm feeling quite smug now that I've one upped a experimental physicist.
Wait, wait! I withdraw my confession of jealousy. Yours is merely a gauge, not a data logger, forcing you to hold the throttle with your right hand, notepad for recording A/F readings and throttle position in your left hand, and pencil between your toes. In stark contrast to your Stone Age mobile note-taking system, I simply hit the 'Record' button on mine and later transfer to my computer up to 44 min. of data of A/F, throttle position, and tachometer readings recorded at 12 Hz to contemplate in the comfort of my home.I was hoping that I could further elevate my feeling of superiority
If you were a physicist you would be lamenting the fact you were limited to only having 44 min. of data to analyze.I would rather stab myself in the eye with a fork than attempt to analyze 44 minutes of data.
I wrote on a different thread that the Innovate LM-2 was developed over a decade ago and since then the company was acquired by another and none of the original personnel are still there. As a result, my experience was that technical support consists of having the manual quoted back to me even though it should have been quite clear from the wording of my question that I already had followed to the letter the procedure in the manual and that it hadn't worked.[*]After a quick look around for data loggers, it would appear that if a person wanted to go that route, it would be better to take the same path that you and Robert did.
I suppose I should keep those sorts of things to myself. Relatively ease to find locally. 2 stations in our little backwater sell premium without ethanol. Not exactly cheap, but not likely to get sympathy from anyone in the UK. When I bought my Moto Guzzi a couple of years ago, the fork tubes would just touch the tank on full lock. After two years of being fed ethanol free fuel, the tank is heading back to its original size and the tubes no longer touch the tank. It would probably be better if Ducati, Moto Guzzi and whoever else... made tanks that didn't swell. They.. whoever "they" are say that although ethanol is hygroscopic, ethanol and gasoline are not. So why do some plastic tanks grow? Water will do it. I've heard some Guzzi owners say the can leave the tank empty and open over winter and the tank will shrink. The swelling has some people using ratchet straps to get their tanks bask into line so they can reinstall the rear bolt.I love the nonchalant way he says " I plan to feed my Comet ethanol free fuel" fancy actually knowing for certain what you are buying* and having official choice, lands of the free indeed.
*Esso Supreme running in semi stealth mode excepted
Sorry for not having responded sooner. Having just finished my Federal tax forms a few days ago (due on April 15 in the U.S.), the phrase "financial statements" caused my vision to blur and to temporarily lose consciousness.analyze financial statements.
I made a "universal" position sensor based on a potentiometer and 1.5 Volt AA battery that clamps to the handlebars. I don't remember the value of the potentiometer I used (something like ~50 kOhm) but with the 1.5 V across the outer terminals the drain is negligible, and with one the lead to the data logger from the center terminal the signal goes from 0 V with the throttle closed to 1.5 V fully open. The LM-1's resolution of 5 mV gives the equivalent of a 0.3% change in throttle position with a 1.5 V battery which is why I don't bother with two or three batteries (the max. input to the LM-1 is 5 V).How do you record throttle position?