Lucky Phil Posted April 22 Share Posted April 22 42 minutes ago, LaGrasta said: …yes, revisiting. Can someone confirm the OEM outlet and inlet sizes, please? Is it 22m/12m? Maybe we buy any of our choosing of 22m petcocks, then use this adapter to overcome the 1/4 to 1/2 outlet hurdle. https://www.amazon.com/Beduan-Reducer-Reducing-Fitting-Splicer/dp/B08P4D63S2?source=ps-sl-shoppingads-lpcontext&ref_=fplfs&smid=A2Q5DK7IXTJEDM&th=1 You can't use this. The distance from the tap outlet to the pump inlet is so short and requires a curve in the hose that ANY section of stiffness in the inlet hose wont work. If it was this easy I'd have opted for a different tap assy instead of spending hours on making mine rebuildable. Phil 1 Link to comment Share on other sites More sharing options...
LaGrasta Posted April 22 Share Posted April 22 https://www.amazon.com/Reducer-Degree-Right-Fitting-12mm×6mm/dp/B07TJ6ZZSB?th=1 https://www.zoro.com/fittings-barb-splicer-90deg-14-x-12-7132/i/G9051417/?utm_source=google&utm_medium=surfaces&utm_campaign=shopping feed&utm_content=free google shopping clicks&campaignid=19725397595&productid=G9051417&v=&gad_source=1&gclid=Cj0KCQjwlZixBhCoARIsAIC745AxcHKETlzdM-VcnGhRWz3YD1uwdyaHkMmh4H2PLrMwhBENZIdqZcMaAr9tEALw_wcB&gclsrc=aw.ds I feel like we might be able to work something out. Not only can we get these reducers in straight or angled, we can also get the petcocks with different direction outlets. What's more, none of this cost very much. Considering what gas cost and how much I lose every time I remove the tank. Link to comment Share on other sites More sharing options...
Lucky Phil Posted April 23 Share Posted April 23 2 hours ago, LaGrasta said: https://www.amazon.com/Reducer-Degree-Right-Fitting-12mm×6mm/dp/B07TJ6ZZSB?th=1 https://www.zoro.com/fittings-barb-splicer-90deg-14-x-12-7132/i/G9051417/?utm_source=google&utm_medium=surfaces&utm_campaign=shopping feed&utm_content=free google shopping clicks&campaignid=19725397595&productid=G9051417&v=&gad_source=1&gclid=Cj0KCQjwlZixBhCoARIsAIC745AxcHKETlzdM-VcnGhRWz3YD1uwdyaHkMmh4H2PLrMwhBENZIdqZcMaAr9tEALw_wcB&gclsrc=aw.ds I feel like we might be able to work something out. Not only can we get these reducers in straight or angled, we can also get the petcocks with different direction outlets. What's more, none of this cost very much. Considering what gas cost and how much I lose every time I remove the tank. Good info but modifying the std tap with Viton orings seems a more elegant solution. There's enough pipes and connections under the tank as it is for mine. I really dont want any more. Phil 2 Link to comment Share on other sites More sharing options...
LaGrasta Posted April 23 Share Posted April 23 Seriously considering this adapter. Being 90° should help with the space issue. I then can attach any 22mm (correct?) female fuel tap. Or even a fuel disconnect. I did consider replacing the O-rings as suggested, but the machining is a deal breaker. Thoughts? Link to comment Share on other sites More sharing options...
Gmc28 Posted April 23 Share Posted April 23 Seem to recall the same issue on the Cagiva Gran Canyon (ducati 904, with external fuel pump), and we all used what we called the "sharkbite", which was the brand name of the 90 deg copper reducer synonymous with what LaGrasta shows above. I think Ducati used a custom hose, and we changed to the reducer fitting, and in doing so actually gained additional leeway in how the hoses routed (they were down low, bottom front of engine). Seems it might yield the same benefit here, where the issue Phil is wisely pointing out might be alleviated with use of a 90 deg fitting coming from the petcock. maybe not.... would have to look closer at the limited real estate available, but i'd think the small hose leaving the petcock could point inward toward centerline of engine, then the 90 would turn the flow straight forward, and attach to a nearly straight run of the larger diameter hose to the pump. 1 Link to comment Share on other sites More sharing options...
footgoose Posted April 23 Share Posted April 23 5 hours ago, LaGrasta said: Thoughts? Looks as though the various parts aren't expensive. You might have to be the guy that takes a shot at figuring out a different route. Worse that could happen is you're out a few bucks and a few hours, and then come back and tell Phil he was correct. Honestly. I'd be tempted if my stock petcock didn't work so well. 1 Link to comment Share on other sites More sharing options...
LaGrasta Posted April 23 Share Posted April 23 I appreciate both your input, parts ordered. I wonder if I can find a 22mm to 6mm union, that I could screw directly into the tank. Tank to reducer to hose to quick-connect to hose to elbow adapter to hose to pump. Link to comment Share on other sites More sharing options...
Gmc28 Posted April 25 Share Posted April 25 On 4/23/2024 at 4:44 PM, LaGrasta said: I appreciate both your input, parts ordered. I wonder if I can find a 22mm to 6mm union, that I could screw directly into the tank. Tank to reducer to hose to quick-connect to hose to elbow adapter to hose to pump. that would be cool, if it can be sourced and evaluated. Link to comment Share on other sites More sharing options...
LaGrasta Posted May 13 Share Posted May 13 Can anyone confirm this fitting our tank? https://www.sd-tec.de/en/moto-guzzi-petcock-m16x1-8mm-50-nibbio-cross-magnum-125-tt-benelli-125-250/item-categoryId-15817-itemId-35105400_.Z-sort-price__asc.html If this does screw into the tank, I now have the adapter to transition the hose to the larger fuel pump hose size. Link to comment Share on other sites More sharing options...
docc Posted May 13 Share Posted May 13 Not sure that will screw in to the V11 tank: Compare here: Link to comment Share on other sites More sharing options...
Tomchri Posted May 14 Share Posted May 14 Bikes with internal pump don't even have a petcock, so I left mine open. Last owner had bought 2 new pet cock's, didn't last long before leaking. Then I had the chance for free to invest . Got the sliimy O ring out, after some filing, correct one in. Discovered different tread lenght on the cocks, making it harder to make sure it woudn't come loose. Make sure all hoses are in order, NOT perfect but no more leaks with a tiny strip of JB w, a little redneck I know. 6mm outlet on the 90 degree adapter, shoud be enough, but why the 90 degree ? I have to check the houseing route tomorrow. Cheers Tom. 2 Link to comment Share on other sites More sharing options...
Lucky Phil Posted May 14 Share Posted May 14 I can't understand why people are going down the Macgyver route when the original screw tap is an excellent design that fits the very tight and awkward location well including the odd sized feed hose to the pump and all that's needed is a simple cheap mod to make it perfect. No need to reinvent the wheel here. Thats why I came up with the original fix. Phil 3 Link to comment Share on other sites More sharing options...
Lucky Phil Posted May 14 Share Posted May 14 4 hours ago, LaGrasta said: Can anyone confirm this fitting our tank? https://www.sd-tec.de/en/moto-guzzi-petcock-m16x1-8mm-50-nibbio-cross-magnum-125-tt-benelli-125-250/item-categoryId-15817-itemId-35105400_.Z-sort-price__asc.html If this does screw into the tank, I now have the adapter to transition the hose to the larger fuel pump hose size. The threads will work BUT the issue is and always has been after you jump the thread hurdle is the hose from the tap to the pump is so short and has a gentle bend in it in two directions and any sort of reducer in that line which by its nature will create a 20-25mm long unbendable section in the hose creates problems both in fit, practicality of access and you now have 2 extra potential leak points. Phil 1 Link to comment Share on other sites More sharing options...
LaGrasta Posted May 14 Share Posted May 14 @Lucky Phil You mentioned the fix is simple, but I thought it took machining of some sort, no? 1 Link to comment Share on other sites More sharing options...
Lucky Phil Posted May 14 Share Posted May 14 6 hours ago, LaGrasta said: @Lucky Phil You mentioned the fix is simple, but I thought it took machining of some sort, no? You need a drill press, hand tools and a vise. Phil 1 Link to comment Share on other sites More sharing options...
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