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Classic Goldwing Technical Forums
GL1500
Chasing that fuel smell
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<blockquote data-quote="Ansimp" data-source="post: 201993" data-attributes="member: 2637"><p>I can’t see if the Valkyrie carbies are similar to the CBX carbies in design but when I met with Mike Nixon in 2013 he told me that the CBX carbies could cascade excess fuel via the drain tube manifold. Mike said that because of this there was a service instruction to delete the 6 port drain manifold and run individual lines so that the lower carbs (LH side on the side stand) could not overflow with excess fuel that would then wind up in the cylinder. He explained that there was an overflow/ vent circuit that fed to the drain tube which I wasn’t aware of. I haven’t identified this circuit myself on any Carbies but I will say that there is definitely a fuel smell from those drain hoses when they are damaged. The rh front drain hose actually had some fuel in it. Val is a UK AUS spec bike that doesn’t have the secondary air system on it but does have a TPS sensor on the rear rh carby for the ignition module. I can’t find any information on this part but you can see it in the picture.</p><p>[GALLERY=media, 32774][/GALLERY]</p></blockquote><p></p>
[QUOTE="Ansimp, post: 201993, member: 2637"] I can’t see if the Valkyrie carbies are similar to the CBX carbies in design but when I met with Mike Nixon in 2013 he told me that the CBX carbies could cascade excess fuel via the drain tube manifold. Mike said that because of this there was a service instruction to delete the 6 port drain manifold and run individual lines so that the lower carbs (LH side on the side stand) could not overflow with excess fuel that would then wind up in the cylinder. He explained that there was an overflow/ vent circuit that fed to the drain tube which I wasn’t aware of. I haven’t identified this circuit myself on any Carbies but I will say that there is definitely a fuel smell from those drain hoses when they are damaged. The rh front drain hose actually had some fuel in it. Val is a UK AUS spec bike that doesn’t have the secondary air system on it but does have a TPS sensor on the rear rh carby for the ignition module. I can’t find any information on this part but you can see it in the picture. [GALLERY=media, 32774][/GALLERY] [/QUOTE]
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Classic Goldwing Technical Forums
GL1500
Chasing that fuel smell
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