|
Post by gerrythemerc on Jul 8, 2016 5:31:38 GMT
The carb on my GS160 is weeping from the float chamber. I have fitted a new float, needle and filter. New gaskets to float cap, fuel inlet banjo and the one between the carb top and main body.I carefully cleaned all the mating surfaces and the float chamber internally at the same concluding the float needle seat looked clean and smooth although it is hard too see its condition really as you know. Whilst my work has made a big improvement it is still weeping.when I remove the float cap and turn on the fuel it floods over the sides. Should this happen? I doubt it and I think this is why fuel is being forced past the gasket.It probably means fuel is being fed in too great a quantity to the jets when running.Am I right? This carb is no longer available. Any advice is most welcome. Today I will remove the top section, invert it, turn on the fuel to see if the fuel needle shuts of the supply. If the seat is worn what can I do?
|
|
|
Post by henri on Jul 8, 2016 6:23:38 GMT
thats a tough one ,that carbs "uber" rare , if you remove the the carb an invert it so floats holding needle closed you shouldnt be able to blow thru fuel inlet .if you can ,or if after sucking an sticking tongue over hole it wont hold a vacuum the seat must be worn/damaged .thats with a new needle of course ,if so its a good engineer you need ,or carb specialist.to re-seat the seat or replace it . joining the vespa club of Britain an emailng there tech/dating guy bill drakes probably ya best bet for getting a replacement or equivalent carb .if a dell's unavailable am guessing a amal british 2 stroke carb could be fettled to fit . H
|
|
|
Post by vespasco on Jul 13, 2016 20:22:45 GMT
how about the fuel tap? does it shut off? you could check the top of the carb is straight use a very flat surface like a sheet of glass to check if it rocks. new gasket and check the float does not stick in the 'open' position Like H says, blow as hard as you like through the float bowl top inlet, the needle should still seal the feed hole.
|
|