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Classic Goldwing Technical Forums
Engine & Fuel System Modifications
joedrums single carb setup with the weber 32 DFT
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<blockquote data-quote="joedrum" data-source="post: 102908" data-attributes="member: 98"><p><img src="https://www.classicgoldwings.com/forum/gallery/image.php?album_id=666&image_id=21671" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p>okay now for the jets and how they work in the weber carb ....the two outside jets are idle jets ..one is primary idle and one for secondary idle .... the primary idle jet on these webers does more that just idle, there are about 5-7 holes in the idle circuit in the primary barrel ...some below the throttle plate some above ...I'mm guessing idle jets cover first 1/3 throttle as main primary jet starts kicking in ....so getting the idle jet and mixture screw set up good covers a lot of mpg territory ... there's no adjustment on air here, jet is really important ...on the secondary idle jet there are no outlets below throttle plate and no air control so its function is for smooth transistion and part throttle plate opening running ..so lots of mpg here also in hiway cruising i'd say ....</p><p></p><p>then theres the main jets ...there three parts..... air jet ... atomizing tube ... and gas jet ... three different adjustments to get the best atomization ...</p><p></p><p>more air= less gas- jet is going leanways and less air and more gas- is going rich ways...</p><p></p><p>the tubes are sized differently and number of holes and all to have different atomizing qualities at different air speeds as rpm changes.</p><p></p><p>On the weber, really only bottom throttle plates that move much and can leak, everything else is air and fuel flow .... once dialed in.</p><p>Weber's are highly tuneable. I don't see much comparison between stock and Weber. Weber is slam dunk winner for me .. hope this gives understanding on carb better :mrgreen:</p></blockquote><p></p>
[QUOTE="joedrum, post: 102908, member: 98"] [img]https://www.classicgoldwings.com/forum/gallery/image.php?album_id=666&image_id=21671[/img] okay now for the jets and how they work in the weber carb ....the two outside jets are idle jets ..one is primary idle and one for secondary idle .... the primary idle jet on these webers does more that just idle, there are about 5-7 holes in the idle circuit in the primary barrel ...some below the throttle plate some above ...I'mm guessing idle jets cover first 1/3 throttle as main primary jet starts kicking in ....so getting the idle jet and mixture screw set up good covers a lot of mpg territory ... there's no adjustment on air here, jet is really important ...on the secondary idle jet there are no outlets below throttle plate and no air control so its function is for smooth transistion and part throttle plate opening running ..so lots of mpg here also in hiway cruising i'd say .... then theres the main jets ...there three parts..... air jet ... atomizing tube ... and gas jet ... three different adjustments to get the best atomization ... more air= less gas- jet is going leanways and less air and more gas- is going rich ways... the tubes are sized differently and number of holes and all to have different atomizing qualities at different air speeds as rpm changes. On the weber, really only bottom throttle plates that move much and can leak, everything else is air and fuel flow .... once dialed in. Weber's are highly tuneable. I don't see much comparison between stock and Weber. Weber is slam dunk winner for me .. hope this gives understanding on carb better :mrgreen: [/QUOTE]
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Classic Goldwing Technical Forums
Engine & Fuel System Modifications
joedrums single carb setup with the weber 32 DFT
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