year of 447
in 2 Stroke Technical Questions
8 months ago
Hello, I have a few questions.
I have a rotax 447 M5161955 trying to determine the year.
It has fresh pistons and new cross hatching on the cylinders.
Piston marked 5e 0.25.
Would like to know how these piston will affect performance over all and if I will need to change any settings (jetting) in the bing carb. Any advice would be greatly appreciated
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