{"id":873,"date":"2012-05-13T15:45:29","date_gmt":"2012-05-13T13:45:29","guid":{"rendered":"http:\/\/www.luke3d.org\/luke3d_blog\/?p=873"},"modified":"2017-05-20T18:40:01","modified_gmt":"2017-05-20T16:40:01","slug":"candela-nera-di-fuliggine-ho-risolto","status":"publish","type":"post","link":"https:\/\/www.luke3d.org\/luke3d_blog\/candela-nera-di-fuliggine-ho-risolto\/","title":{"rendered":"Candela nera di fuliggine &#8211; ho risolto!"},"content":{"rendered":"<p style=\"text-align: left;\">A questo punto \u00e8 ufficiale: ho risolto il problema della candela nera di fuliggine. Nei mesi passati riuscivo a fare a fatica 30 km con una candela, poi era da buttare&#8230;.<\/p>\n<p style=\"text-align: left;\">La candela nera pu\u00f2 essere data da carburazione grassa, grossi trafilamenti di olio o scintilla molto debole.<\/p>\n<p style=\"text-align: left;\">Quindi revisionate attentamente il carburatore, in particolare verificate tutti i getti, lo spillo conico, l&#8217;altezza del galleggiante ed il suo peso (occhio che non sia danneggiato che entra benzina dentro e si appesantisce), il polverizzatore, la vite di regolazione della miscela e lo spillo che ferma il flusso di benzina nella vaschetta (deve avere la punta in gomma, non in metallo). Cambiate tutti gli o-ring e pulite tutti i condotti, meglio se lo portate a far pulire con gli ultrasuoni. Visto che ci siete controllate che il filtro dell&#8217;aria non sia otturato. Attenzione al meccanismo &#8220;dell&#8217;aria&#8221; che se rimane aperto fa passare benzina. Quel meccanismo \u00e8 fatto da un cilindro con in fondo un gommino di tenuta: con il tempo il gommino si consuma e non fa pi\u00f9 tenuta. Riportate ogni singolo pezzo alla configurazione di fabbrica (cambiate anche i getti, si sa mai che qualche meccanico li abbia allargati&#8230;). Verificate che in corpo del carburatore non abbia qualche incrinatura che fa trafilare benzina quando il corpo si scalda.<\/p>\n<p style=\"text-align: left;\">Per la scintilla controllate attentamente tutti gli elementi dell&#8217;accensione&#8230;detta cos\u00ec la faccio facile&#8230;. io ho tagliato la testa al toro e sono passato da accensione elettronica a puntine cambiando tutto, compresi i fili.<\/p>\n<p style=\"text-align: left;\">Per i trafilamenti di olio smontate la testa e verificate il consumo dei guida valvole e dei relativi gommini che probabilmente saranno vetrificati ed induriti. Visto che ci siete verificate il consumo delle fasce del pistone.<\/p>\n<p style=\"text-align: left;\">Io probabilmente avevo un mix di queste cose: il carburatore era in pessime condizioni, la fasce avevano 1mm di gioco ed i gommini dei guida valvole erano durissimi e probabilmente non facevano molta tenuta. Sono passato completamente da accensione elettronica a puntine. Quando avr\u00f2 tempo ritorner\u00f2 all&#8217;accensione elettronica ed indagher\u00f2 sul problema.<\/p>\n<p style=\"text-align: left;\">In ogni caso il mio modesto consiglio, prima di smontare mezza moto, \u00e8 quello di partire dal carburatore e poi indirizzarsi verso l&#8217;accensione elettronica. Una prova da fare per capire se \u00e8 il carburatore \u00e8 quella di staccare il collettore di gomma dal cornetto di aspirazione (fate una prova non in fuoristrada). Se la situazione migliora \u00e8 probabile che si il carburatore.<\/p>\n<p style=\"text-align: left;\">E&#8217; stata una fatica, tutti dicono che \u00e8 un problema di carburazione, per fortuna mi sono imbattuto in questo dove si dice la parolina magica &#8220;weak spark&#8221;&#8230; \ud83d\ude42<\/p>\n<p style=\"text-align: left;\"><a href=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2012\/05\/candele.jpg\"><img decoding=\"async\" class=\"aligncenter wp-image-876 size-medium\" title=\"candele\" src=\"http:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2012\/05\/candele-218x300.jpg\" alt=\"\" width=\"218\" height=\"300\" srcset=\"https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2012\/05\/candele-218x300.jpg 218w, https:\/\/www.luke3d.org\/luke3d_blog\/wp-content\/uploads\/2012\/05\/candele.jpg 746w\" sizes=\"(max-width: 218px) 100vw, 218px\" \/><\/a><\/p>\n<p style=\"text-align: left;\">\n","protected":false},"excerpt":{"rendered":"<p>A questo punto \u00e8 ufficiale: ho risolto il problema della candela nera di fuliggine. Nei mesi passati riuscivo a fare a fatica 30 km con una candela, poi era da buttare&#8230;. La candela nera pu\u00f2 essere data da carburazione grassa, grossi trafilamenti di olio o scintilla molto debole. Quindi revisionate attentamente il carburatore, in particolare  [&#8230;]<\/p>\n","protected":false},"author":2,"featured_media":876,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[8],"tags":[63,11],"class_list":["post-873","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-restauro-ducati-scrambler-250-by-luke","tag-candela-nera-di-fuliggine-ducati","tag-ducati-scrambler"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Candela nera di fuliggine - ho risolto! | Luke3d garage<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.luke3d.org\/luke3d_blog\/candela-nera-di-fuliggine-ho-risolto\/\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Candela nera di fuliggine - ho risolto! | Luke3d garage\" \/>\n<meta property=\"og:description\" content=\"A questo punto \u00e8 ufficiale: ho risolto il problema della candela nera di fuliggine. Nei mesi passati riuscivo a fare a fatica 30 km con una candela, poi era da buttare&#8230;. La candela nera pu\u00f2 essere data da carburazione grassa, grossi trafilamenti di olio o scintilla molto debole. 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