I’d still like to get hold of a O2 sensor so I’ve been looking on Alibaba to see if anything likely can be found on there at a lower price.
Would something like this work with a display?
http://www.aliexpress.com/item/Brand-O2-Oxygen-Sensor-for-JEEP-GRAND-CHEROKEE-OXYGEN-02-Sensor-1999-2000-4PIN-FEMALE-ROUND/32601339268.html?spm=2114.01010208.3.1.5Ouumx&ws_ab_test=searchweb201556_1,searchweb201602_2_10036_10035_10034_507_10032_10020_10001_10002_10017_10010_10005_10011_10006_10003_10021_10004_10022_10009_401_10008_10018_10019,searchweb201603_2&btsid=090fd7c9-8bf1-4e81-99e6-6b3a3452af04
What say you @stephen-clark?


Possibly. 02 sensors are pretty common. But then you would need to weld a bung into the exhaust, & also get something to interpret what the 02 sensor says.
I looked at the Innovate MX 02 sensor & gauge for $350 or so (was around $250 when I looked seriously at it). Phil Paton had one when he built up his DR.
I’m still keen to get one too – when I have actual income coming in…
There’s plenty of gauges available also at very cheap prices.
http://www.aliexpress.com/wholesale?catId=0&initiative_id=SB_20160322102100&SearchText=air+fuel+gauge
I wasn’t looking to permanently mount one. I saw a setup that had a steel arm where you could lower the sensor down the exhaust. For most bikes it should be fairly set and forget, except maybe for an airhead.
The last component as you say is a controller and that I suspect is the expensive bit. I haven’t had any luck finding something for that.
Here’s a $30 US wideband controller http://www.wide-band.com/product-p/apsx_d1diy.htm
They offer a complete kit for $135 US http://www.wide-band.com/product-p/apsx_d2n.htm
‘@Box.a.Bits
http://www.trademe.co.nz/business-farming-industry/industrial/electrical-equipment/gauges-meters/auction-1085183777.htm
Some more info
https://www.youtube.com/watch?v=n45F-NENpGc&app=desktop
http://m.ebay.com/itm/301973990123
These have some interesting products
http://aemelectronics.com/products/wideband-uego-air-fuel-controllers
DIY kits, circuit boards
http://wbo2.com/cart/orderpages.htm?btnG=Products
Cheap from Australia
https://ldperformance.co.uk/product/wideband-controller/
What is the cheapest complete setup for a bike?
I’m after one to tune the Katoom as its modified all over…..
Doesn’t need to be a permanent fixture, a fitting welded into the pipe for use then a bung fitted when not will do…
Just need to get the tune right throughout the rev range and the old plug chop method is a bit Heath Robinson for me….
Thats what I was trying to figure out. Gauges are cheap and plentiful, The controller seems to be the biggest variable in cost.
‘@Box.a.Bits have you seen these?
https://www.digital-speedos.co.uk/gauges-c4/motorcycle-gauges-c27/air-fuel-ratio-gauges-c47/koso-mini-4-air-fuel-ratio-gauge-12-volt-dc-or-internal-battery-12-2-17-2-range-lamba-sensor-included-p69
i’d love a wide band O2 sensor. That would make life easier. But a low priority spend.
More research indicates the Koso unit is narrow band not wide band O2.
I’ve just found this company 14point7.
Their latest wideband controller, version 3, is over $200US but the previous version 2 is $75 US.
https://www.14point7.com/products/spartan-lambda-controller-2
Well to revive an old thread… Did you make any progress on this?
I think there’s quite a few of us out there messing with bikes in our garages and trying to tune it via feel on the road.
What are others using to dial their bikes in? The dyno tune is going to need to happen eventually is it best to just go straight to this step and not waste time and money on trying to avoid the inevitable?
I didn’t, but it’s still something I’d like to get.
I come across this controller that uses your phone as a display.
https://www.amazon.com/Performance-Electronics-Wideband-Bluetooth-Kit/dp/B083G91V9X