Roger: what don't you like about the speedometer cable adjustment of the mixture? Is it not fine enough? You could add a small lever arm to the mixture screw and make the mixture adjust by push-pull with a standard vernier type mixture knob. Depending on how long you made the lever you could push the mixture knob in/out by a full 3" of stroke and only move the mixture screw by 1/4 turn if you needed finer adjustment. Also, I see from the HD carb (as on the 1960s Harley Sportsters) exploded view that the idle adjustment screw is on top of the carb. How do you get to it with your setup? Looks tight ;o)
-Oscar Oscar With the speedometer cable I get very fine mixture control, the part I don't like is the cable tends to wind up and you don,t have a positive feel when making adjustments and the fact that you do not have a visual of where the mixture is at a glance. From sea-level to 14000 feet I need about one full turn to keep things where I like them. But it still gives me precise control of the mixture. I have been looking at miniature gear boxes the have a 3 to 1 ratio that I could use a push-pull control on. Maybe I'm over thinking it. On this particular HD the idle mixture screw is on the lower left side of the carb as you are sitting in the plane. The main mixture screw is on the right. It seems as with many carburetors, there were a lot of variances depending on the application. Roger -----Original Message----- From: Oscar Zuniga via KRnet Sent: Monday, October 12, 2015 11:16 PM To: krnet at list.krnet.org Cc: Oscar Zuniga Subject: KR> Roger's carb _______________________________________________ Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search. To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org please see other KRnet info at http://www.krnet.org/info.html see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options
