mudyman Report post Posted March 2, 2012 Hi all other swm friends has anyone got details of which jets, slide, needle etc. should be in the carb of a 1984 Jumbo ? Thanks Ian Quote Share this post Link to post Share on other sites
martinm Report post Posted March 2, 2012 (edited) Hi Ian That will depend on whether your motor has the reeds fitted or the blanking plate. The diagram below shows both jetting options. (Figures in brackets are if reeds are fitted.) Edited March 2, 2012 by MartinM Quote Share this post Link to post Share on other sites
mudyman Report post Posted March 4, 2012 Hi Martin ! Thanks for the diagram. I just have a question about the things listed: Getto minimo = idle jet pillo conico = needle jet Valvola gas = is this the slide or main jet ? Polverizzatore = is this the atomizer ? Some of the things I could get translated but not all as my Italien is 0 Cheers Ian Quote Share this post Link to post Share on other sites
martinm Report post Posted March 5, 2012 Getto minimo = pilot jet Spillo conico = needle Valvola gas = slide Polverizzatore = atomizer Cheers Martin Quote Share this post Link to post Share on other sites
geoff850 Report post Posted December 10, 2019 If my interpretation is right this looks like a pilot jet of 50 ( without reeds ) but what about the main jet? looks missing from this photo? or is this the atomiser? this is smaller than a 280 engine pilot '60or 65? Quote Share this post Link to post Share on other sites
fourex Report post Posted December 11, 2019 13 hours ago, geoff850 said: If my interpretation is right this looks like a pilot jet of 50 ( without reeds ) but what about the main jet? looks missing from this photo? or is this the atomiser? this is smaller than a 280 engine pilot '60or 65? Main Jet = 100. Atomiser = emulsion tube = Needle Jet. AS 272 (no reeds) or AS 268 (with reeds). https://www.dellorto.co.uk/shop/dellorto-motorcycle-carburettors-parts/carburettor-parts/phbephb-parts/as-type-atomiser-phbh-phbe/ Needle is X2, SX 200 doesn't exist as far as I have found. Pilot = 50 (no reeds) or 60 (with reeds). Slide = 60 (no reeds) or 70 (with reeds). 1 Quote Share this post Link to post Share on other sites
FreeWheel Report post Posted January 25, 2020 Here is an old spec sheet with various models of swm the jumbo is listed on there hopefully it will be of use. SWM MODEL SPEC SHEET.xls Quote Share this post Link to post Share on other sites
