That would be me. It won't work. It utilizes a narrow band O2 rather than a Wide Band. Both accuracy and precision will be affected. I've used this sensor (Bosch WBO2 and NTK version) for the past four years:

http://techedge.com.au/ If you unfamiliar with the usage of WBO2s for tuning AFR (or don't understand why narrow bands won't work [img]i/expressions/face-icon-small-smile.gif[/img] ).....read the info and links on the above site; it is very helpful.

Steve

 

I MAILED NORDSKOG TODAY AND THEY REPLIED.

THE AIR/FUEL GAUGE WILL WORK ON 2 AND 4 STROKE MOTORS. THEY WILL WORK ON ATV'S AS WELL. THEY ALSO REPLIED THAT YOU SHOULD PLACE THE O2 SENSOR 10" AWAY FROM THE HEAD ON THE 4 STROKE, AND CLOSER ON THE 2 STROKE MOTORS.

I THINK I WILL TRY IT
_________________
02 650P
NYROC MUFFLER
NAPA #7335
145F/147.5R JETS
DYNATEK CDI
EPI BLACK
700P DRIVE SPRING
WARN 2000
PLOW

 

Shotgun, you bring up a very, very good point!!! And one I have never thought of.

The reason I have never thought of the restriction is because I use it (the O2 gage) and take it off and put it away. I do leave my EGT on the pipe, but as you point out I have a 3" exhaust (on my car) and I don't worry about an 1/8" probe. I would worry about it if I had a small pipe like a quad has.

On my O2 probe, they want you to mount it in the collector not down the pipe. The reason was getting the probe hot sooner. Remember, I have a one wire with no heater. You talked about the three wire, and this may be the ticket!!! But I'm just not familiar with the three wire.

You make a very good point!!!

 

deerchooper/anyone: is the gauge waterproof....guess it is if mfr says it will work on atv's.

 

If you are trying to set up the proper air/fuel ratio (air screw, needles and main jets), you will probably need a more sophisticated air/fuel ratio meter. Here is a link to one type of these meters. I know this unit is expensive but you would have the ability to see how each modification (snorkle, pipe, air cleaner element, big bore, cams, etc.) effects your machine. The unit can also be tied to RPM and will store some data so it can be downloaded and looked at on a PC. Remember you have to look at jetting over a large spectrum such as throttle position versus RPM. After running some initial tests you can sit down and determine which device needs to be adjusted (needle, main jet). Then after making the changes you can see if they actually did what you expected. Hope this is of some help. http://www.innovatemotorsports.com/x...255725fce705e6