| Author | Message | ||
     Bernd |
I bought a wideband A/F guage to assist jetting some old bikes I have. I was going to weld the sensor bung to the collector of my Cyclone but I've noticed the O2 sensor on the fuelies is on the rear primary pipe faily close to the port. Does anybody have an opinion on where I should put the bung? Thanx. | ||
| Tripp |
hi bernie, i bought a force pipe for my cyclone that was built for an x1, i plugged the o2 bung, i can measure how far from the cylinder it is when i get home if that helps. | ||
| Dave_02_1200 |
Tell us about your A/F meter. What brand, how difficult to install, and how well it works. Photos would be great if you can. I want one too but have no idea what is available other than the NGK. Thanks, Dave | ||
| Tripp |
it's about 3-3 1/2" o.c. with opening facing out left of the bike, looks like i could screw a meter in there no problem just clearing the exhaust stud nut. | ||
| Bad_karma |
Here is what I have done. Joe    | ||
| Bernd |
It's a NGK AFX Powerdex I bought from Ballenger Motorsorts Inc. I have not used it yet. From my understanding, this is the simplest type of wideband A/F monitor available. A simple digital readout, no data logging. Measures from 9-16 to 1 A/F ratio. Install instructions call for minimum 10 times exhaust diameter upstream from engine for the sensor location. Hence the question about the fuelie bung location. Thanx for the measurement, Tripp | ||
| Bernd |
Hi Bad Karma. I'm not an expert by any means but it looks like your setup is the narrowband type. My research indicates that this is basically useless. Also extended bungs are available for smaller diameter exhaust pipe. No offense intended, just sayin' | ||
| Bad_karma |
Your correct it is narrow bad. The system displays 12 to 15, that is all I need to tune the carburetor. With the cost of the wide band units it's not worth it to me. Not sure what you mean by extended bung but I want the O2 sensor as deep in the collector as I could get. Plus this was the only stainless steel bung I found. I admit I didn't do an exhaust search. No offense taken, I'm not an expert, never will be. Joe | ||
| Bernd |
Hi Joe, The longer bungs are available for smaller diameter pipes so that the sensor doesn't intruded into the pipe to much. I don't know why I mentioned that, as it doesn't apply to your setup. Ha Ha I'm sorry to say this, but all the reading I've done indicates that the narrowband with light display is just a "light show". Sure, you will know if you're on either side of 12 or 15.....but the wideband allows a much more incremental digital readout for fine tuning. I wish I were smarter, then I could regurgetate the dozens of hours I spent on ThumperTalk listening to the smart guys deal with carb swaps and A/F meters etc. I believe jetting is known for most applications that A/F monitors are unnecssary. | ||
| Bad_karma |
Berni you are probably correct about jetting being known for most application. I'm sure that my setups aren't knew. Just learning as I go. Joe |
