ORIGINAL: Xairflyer
so 25:1 is one part oil 24 parts fuel not 25 ? interesting.
If you have tuned to 40:1 and decide to add a bit extra oil next time so it is say 37:1 you would now be running it too lean !! so not really a good idea to add a bit extra oil.
You guys are too much!
How about tuning those needles like they should?