O2 sensor/air fuel meter with 100LL?

Something to know and remember: 100LL has four times the lead that 80 did, and 80 was pretty close to the old leaded Mogas. That extra lead causes much faster sparkplug fouling in aircraft engines designed to run on 80, and it doesn't do the oil much good, either. Converted auto engines could suffer the same way, especially if they're liquid-cooled.

Straight 100 (the green stuff) had eight times the lead of 80. Don't see it or 80 anymore. Once in a while I'll hear of some airport having 80, but it would be rare. What refinery is going to bother with such tiny volumes?

 

If blue flame is just right and yellow rich and white hot/lean it does not seem at first glance hard...probably is though.
Lots of cheap IR meters ..also seems like a good way to measure temperatures

 

By optical I don't mean something along the lines of a Color Tune.

https://www.google.com/search?client=firefox-b-1-d&q=optical+oxygen+sensor

 

got a Pulse-Ox on my finger

I have used the glass spark plug and it worked pretty good

 

I understand all of those acronyms except the EGO. Help a brother out?

 

• EGO sensor - meaning 'Exhaust Gas Oxygen Sensor'
• HEGO sensor - meaning 'Heated Exhaust Gas Oxygen Sensor'. This refers to the heater element included within the 3-wire and 4-wire types.
• Oxygen sensor - referring to the fact that the Lambda Sensor measures the Oxygen present in the exhaust gas stream
• O2 sensor - back to school for this one - O2 is the chemical symbol for an Oxygen molecule. The number 2 reminds us that atoms of Oxygen like to go around in pairs
• Planar or 'Wideband' sensor - different to an ordinary Lambda, this is a more modern kind of sensor. It is fitted to engines that meet the latest emissions requirements.
• You may hear the word 'probe' substituted for 'sensor' - eg. Lambda Probe
• The word 'sonde' is common across mainland Europe - eg. Lambda Sonde