[JrZook]

Seems to show a bit more than just the usual rich/lean situations, also goes through timing as well as plug heat ranges.

http://www.4secondsflat.com/Spark_plug_reading.html

Dan

[Brett]

i know we are trying not to fill threads with crap but



THANK YOU!!!

[jdk81]

JrZook wrote:

Seems to show a bit more than just the usual rich/lean situations, also goes through timing as well as plug heat ranges.

http://www.4secondsflat.com/Spark_plug_reading.html

Dan

A good read.

Was quite accurate too.
My timing was 1 degree out, and was running a little rich at idle.

The only gripe i had with it was the desciption of timing.
too much timing = too much advance
too little timing = retarded too much.