Non red one runnnig leaner than the other ?
What’s a new plug look like
Very contrasting plug burn. How should it be interpreted?
Non red one runnnig leaner than the other ?
What’s a new plug look like
New is just shiny silver
That's usually additives being burnt off to het that colour. Not normally something to worry about. Have you recently started using any or changed fuel types?
Standard 91, stabil and Merc synthetic oil
Drop the Stabil unless it is going to be stored a fair while >6 weeks.
I suspect the "cleaner" plug is the top cylinder...hotter burn in upper cylinders normally.
Jack.
They look hot and dry to me, there is a chart online that gives explanations on plug colours.
The earlier you apply the stabil the better
I keep 40l for the generator and every 12 months put it through the ride on lawn mower and refill for another year
And use the boat fuel in the ride on but using tote tanks makes that easier to do
Didn’t realise stabil can make it burn so much differently
I like stabil. Helps me sleep at night not worried about poor fuel quality breakdowns.