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View Full Version : webber 40's main jet size?



t40nova
23-02-12, 02:05 PM
hi guys looking for a wee bit of help with my main jets its a 1.4sr. i have with a 1.6 head im running 120 main jets and f7 emulsion tube's it idles spot on but just runs too rich?

was thinking of goin down to 110 main jet's but what emulsion tubes would i need?
or if anyone could give some notes what there webers are running would be helpfull

thank's
dan:thumb:

faker
23-02-12, 04:57 PM
F11 or F16 emulsion tubes with 110 or 115 main jets. 140 air correctors with 30 chokes. Idle jets can be tricky, trial and error I'm afraid, depends on the carb (what they were originally designed for as they have different applications).

t40nova
23-02-12, 05:53 PM
the idle jets are spot on bud,ill get the 110 and 115 main jets and f11 and f16 emulsion's too see how i get on.on a whole the car runs well but just too rich lol thank's much appreciated :thumb: