April 2, 201610 yr My beta 2008 250 4t runs too rich once over 2/3rds throttle, I suspect the main jet is too big.(lowering the needle does not work). I ride at up to 1000 above sea level. Does anyone know what the standard main jet size should be or more to the point, what size main jet does this bike need to run right? Also where can I get them from? (please don't recommend the uk beta dealers because they just don't want to know) Cheers
April 2, 201610 yr The main jet is shared with many other types of Mikuni carbs so they are not difficult to obtain. Std size should be 127. I use 125 at about the same alitude. /Carl
April 4, 201610 yr Author cheers Carl I think I will order a few and experiment...... PS. I' ve Been planning a snowboard trip to Sweden for years and I'm guessing if you ride trials you do winter sports? If you know your ski areas where would you recommend? Cheers, sorry for going off piste!
April 10, 201610 yr Sorry, no skiing for me but I know the area around Sälen is very popular. Best time of the year would be when days grow longer Feb-April. Lots of people end of Feb due to winter vacations. I guess Mars is best. https://www.skistar.com/en/Salen/About-Salen/ http://www.skiresort.info/ski-resorts/europe/sweden/ Speaking English wouldn´t be any problem at all. /Carl
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