There are only a handful of riders who use the full power of a modern 250/300 and most of them just jet the bike properly. The rest of us can live with a burble here and there so long as it is while we are out riding
I did a three day ride from sea level to 2000+m and didn’t change the jetting- it was only slightly fat on the third day but I was tired by then lol
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2003 txt250 Pro
2013 Ossa 280i
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