Darren Groves Posted June 16, 2015 Report Share Posted June 16, 2015 I am in the process of rebuilding a pair of HS4's, unusually they still have their identifying tags on and they are AUD665 spec, which according to the Burlen website are standard jet type (not waxstat). The rebuild kits for these have a standard throttle disc, but the ones in there currently are different (as photo). Is this butterfly from a Waxstat spec carb and presumably it won't matter if I fit a standard throttle disc? Link to comment Share on other sites More sharing options...
Pete Lewis Posted June 16, 2015 Report Share Posted June 16, 2015 They are to weaken waste mixture on overun best to eliminate them Ok when working but if the spings get weak they suck air all the time , makes setting up hopeless many solder them shut Pete Link to comment Share on other sites More sharing options...
Darren Groves Posted June 16, 2015 Author Report Share Posted June 16, 2015 Thanks Pete Link to comment Share on other sites More sharing options...
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