Setting idle mixture screw on old Hondas
in [Tech]
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From: Ken Abrams on 19 Jun 2007 09:23 "mwhyte via MotorcycleKB.com" <u35079(a)uwe> wrote > There still seems to be a steady rhythm of > exhaist coming out of both pipes at idle, but I'm not sure that means > anything with regards to a fouled plug/cylinder not firing. > Ah, but are both exhaust streams HOT....or is one just luke warm ???? > And I'm no mechanic (obviosly) but it strikes me that the idle throttle screw > shouldn't need to be maxed out to maintain an idle speed of 11 rpms. > Right on! > Now what, I'm not sure. I just had my carbs rebuilt, but, I'm starting to > think, maybe not very well. Maybe but B4 you start tearing the carbs apart again, I'd certainly check the plugs and check for spark on both sides. Then I'd check the boots between the carbs and the engine for leaks (which is a common problem on old bikes that have had the carbs removed). Good luck! Oh, and another possible clue to a dead cylindar.........with bike running, adjusting the idle mixture screw on one side has absolutely NO affect while the one on the other side has a GREAT affect. |