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Classic Goldwing Technical Forums
Engine & Fuel System Modifications
Weber considerations
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<blockquote data-quote="ekvh" data-source="post: 141249" data-attributes="member: 1179"><p>I follow along most single carb posts and hope to attempt one this summer. It seems that one big difference between Joe's mods and most of the others, including those using the 32/36, is that he blocked the feed for the power valve. Is that correct, the jet in the bottom is plugged and the valve removed? If everyone else who has been trying this is running into rich conditions, it seems he has effectively eliminated this from the equation and can rely on jetting alone to tweak. The power valve is probably a good idea, but too much for the smaller gl motors. The other part to the power valve is that it is vacuum operated. Where does it begin to operate on a gl? I read that Weber sells spacers to place on the spring to change the point at which the valve opens.mwashers could probably be added. My guess is that it is opening too quickly due to the sudden low vacuum situation when cracking the throttle. When it opens it basically is an extra jet, right?? Guys who have tried this with a 32/36 complain of having to "feather" the throttle up to speed. And some who have tried it with the dft. I wonder if this won't work for them?</p><p></p><p>Curious how many others have gotten rid of the power valve and what their feeling is on driveability. Another option might be reducing the size of the jet under the power valve.</p></blockquote><p></p>
[QUOTE="ekvh, post: 141249, member: 1179"] I follow along most single carb posts and hope to attempt one this summer. It seems that one big difference between Joe's mods and most of the others, including those using the 32/36, is that he blocked the feed for the power valve. Is that correct, the jet in the bottom is plugged and the valve removed? If everyone else who has been trying this is running into rich conditions, it seems he has effectively eliminated this from the equation and can rely on jetting alone to tweak. The power valve is probably a good idea, but too much for the smaller gl motors. The other part to the power valve is that it is vacuum operated. Where does it begin to operate on a gl? I read that Weber sells spacers to place on the spring to change the point at which the valve opens.mwashers could probably be added. My guess is that it is opening too quickly due to the sudden low vacuum situation when cracking the throttle. When it opens it basically is an extra jet, right?? Guys who have tried this with a 32/36 complain of having to "feather" the throttle up to speed. And some who have tried it with the dft. I wonder if this won't work for them? Curious how many others have gotten rid of the power valve and what their feeling is on driveability. Another option might be reducing the size of the jet under the power valve. [/QUOTE]
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Engine & Fuel System Modifications
Weber considerations
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