jonnyk5614 Posted February 28, 2012 Share Posted February 28, 2012 Forgive me asking (New to Saloons and New Zealand!) but my Haynes hasn't arrived and after 10minuts of poking about, have been unable to find anything resembling a screw to lean the mixture on one of my carbs. I assume they are HS6 - they are certainly SUs and the car is a 1977, NZ built 2500S.Cheers Link to comment Share on other sites More sharing options...
piman Posted February 28, 2012 Share Posted February 28, 2012 Hello Jonny, there is no screw as on other carburettors, S.U. mixture adjustment is done with a nut on the jet tube. This is located directly underneath the carburettor.Screw this nut up a couple of lats and see how it runs. Just be sure first that the air filters are clean and the choke isn't sticking on. If you get someone to operate the choke you should see the jets moving up and down, it should be fully up when the choke is in. I hope that's a start for you?Alec Link to comment Share on other sites More sharing options...
nicmk1est Posted February 28, 2012 Share Posted February 28, 2012 this may help...scroll down to page 10 http://www.dctra.org/Files/Service_Manuals/carbs.pdf Link to comment Share on other sites More sharing options...
jonnyk5614 Posted February 28, 2012 Author Share Posted February 28, 2012 Cheers - there isn't actually any air filter! I have one on order though. Not sure what the "really good garage who service her" were doing! Link to comment Share on other sites More sharing options...
jonnyk5614 Posted February 28, 2012 Author Share Posted February 28, 2012 But I know they are not balanced because the front 3 plugs are perfect and the back 3 black as shit! Link to comment Share on other sites More sharing options...
jonnyk5614 Posted March 3, 2012 Author Share Posted March 3, 2012 Found the knut underneath to turn (it seems to sit underneath the carb) with a pipe below it that goes down to a disk about the size of a 10p piece (50NZ cents).Only thing is, access is a pig for the rear carb. Any advice?On my spitty, I just reached underneath and twisted! God I hate fixed wings.... Link to comment Share on other sites More sharing options...
nicmk1est Posted March 3, 2012 Share Posted March 3, 2012 underneath car with a torch and long arm :) Link to comment Share on other sites More sharing options...
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