Do these plugs look ok?

[trotty]

hey guys. Took the ski out yesterday after rebuilding carbs and bpipe. And after initial tinkering with the high screws due to it running a little hesitant found a sweet spot. It flew and am well happy with it. I was paranoid I may blow a piston, I ran it pretty hard and the water still wouldn't sizzle off pipe anyway I've yet to adjust pipe for low end snap but just wanted to try it out and there's a noticeable difference. Lows are almost 1 turn and highs are between 1-1/4 to 1-1/2. I put a new set of plugs on and this is the coloration of them at these settings. To all you people are these good readings?it ran well all day. Thanks

 

[CRJ]

Your low adjustment you should set once and leave alone. I was taught to set it on a warm ski at idle. turn it in till the motor stumbles, then back it off 1/4 turn. what sort of throttle levels are these plugs showing, under half? 3/4? best way to know if get a full speed run for a minute or so then kill it without idling and check them. Of you can also read piston wash, which is my way of tuning.

 

[trotty]

I set the lows in the way u said. Turned them in till it stumbled but backed them out until it idled and responded to throttle crisply. The highs were set at a base point of 1.25 turns out. I never adjusted lows on the day as I did them in a paddling pool lol. At the lake there was a slight hesitation from say half throttle so turned the highs out a little and it was ok. These readings were from the end of the day with quite a few wot runs.