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2stk jetting-Set it and forget it?

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I ride offroad every weekend.
1,500 to 5,500 feet.
30 to 80 degrees F.
Bikes
1990 yz 250
2002 yz 250
2006 yz 250
2009 250xc ktm
2015 200xcw ktm
I am no jetting expert and tune my carbs to not load up at slow speeds. Plugs are on the black side, not chocolate and never whitish.
I never change jetting after bike is tuned and all of these bikes run/ran the same year round. Some power loss on the 200 above 4000 feet and some power loss on the 06 above 7000 ft.
I read a lot about the hassle of jetting two strokes.
Anybody else run the same jetting year round in varying temp and altitude conditions?


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I have friends whose bikes pretty much run the same winter summer,  high altitude or low.  They always have black plugs and have never come to the realization that bikes that are not jetted close to optimum always seem to run the same :thumbsup:

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