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Message: [QUOTE="helio lucas, post: 1382723, member: 78346"] [url]http://www.procircuit.com/jettingspecs.htm#2000[/url] some jetting specs from pro circuit may help... to setup the float level on most of the comon carbs just get the marks on the float or the float arm parallel to the gasket surface of the fuel bowl :cool: the manual should say how to measure the 15mm. may be in another chapter. if not, usually, is 16mm not 15, with upside down carb, from the top of the float to the gasket surface with the needle just closed. before any atempt on jetting be sure that the exhaust packing is new and the engine don´t have any air leak. and the carb should be clean. [/QUOTE]