Ian, thanks for the good information. I'm going to try and get a strainer screen from Jim, I'll post the results.
On Mon, Oct 31, 2022, 7:24 PM Ian Chames <fivebas...@gmail.com> wrote: > One caveat as to buying a replacement petcock, something to be aware of... > The original petcock on my 83 650SC would leak when turned to Reserve. I > bought an aftermarket petcock, installed it; all seemed fine, until I would > accelerate hard up long grades - suddenly I would lose power, and have to > pull over to the side of the road and wait for the the carb bowls to fill > back up. I pulled the petcock off three times, looking for obstructions, > swapped the mesh filters - nothing worked. So, I bought a used OEM petcock > off eBay, installed it, and have had no starving issues since... > > Maintaining a classic 40-year-old motorcycle is always a challenge, but - > we all them, and enjoy the tinkering process... > > On Sun, Oct 30, 2022, 8:19 PM Drew Gormley <wrenchther...@gmail.com> > wrote: > >> You can type >> Nighthawk Petcock into ebay and buy a new old part or a replacement as >> long as you check the fit of parts before you buy. >> >> >> https://www.ebay.com/itm/113313389305?chn=ps&norover=1&mkevt=1&mkrid=711-117182-37290-0&mkcid=2&mkscid=101&itemid=113313389305&targetid=1645685075408&device=c&mktype=&googleloc=9030987&poi=&campaignid=16730423415&mkgroupid=135815925780&rlsatarget=pla-1645685075408&abcId=9300841&merchantid=118887866&gclid=Cj0KCQjwwfiaBhC7ARIsAGvcPe6B9jqY0lGmp0l1ctkpy-sSGFuggdZMuhVn-SeNQw-SYyfA5CmSGwcaAlCeEALw_wcB >> >> >> There is no such thing as a bike specific petcock. They are plumbing >> fittings. The nut that tightens up is the only deal breaker. Check the >> thread size and diameter. >> >> >> >> On Mon, Oct 31, 2022 at 7:24 AM mike <subarumik...@gmail.com> wrote: >> >>> Let us, (me) know when you find one. Seems too be pretty unique. >>> >>> On Sun, Oct 30, 2022, 7:21 PM Drew Gormley <wrenchther...@gmail.com> >>> wrote: >>> >>>> Petcocks are not unique to old bikes. A few companies sourced their >>>> parts from the same factories in Japan, so if you too measurements with >>>> caliapers, you'd find that one strainer tube is the same as another. >>>> >>>> You could also just use an aftermarket Petcock, and aftermarket >>>> internals. >>>> >>>> >>>> On Mon, Oct 31, 2022 at 3:43 AM mike <subarumik...@gmail.com> wrote: >>>> >>>>> Ian, it's I no longer available on this planet. >>>>> >>>>> On Sun, Oct 30, 2022, 1:03 AM Ian Chames <fivebas...@gmail.com> wrote: >>>>> >>>>>> I think you should find the strainer tube that goes over the feed >>>>>> tube on your petcock. The reason why; if any chunks of rust or debris >>>>>> floats down and into the gas inlet orifice, it could restrict the flow of >>>>>> gas, or stop gas delivery all together. The in-line fuel filter is a >>>>>> secondary filter, and isn't really needed, as long as you have the >>>>>> original >>>>>> filter tube installed on the petcock. So, I say buy one, and install it. >>>>>> >>>>>> Ian >>>>>> >>>>>> On Sat, Oct 29, 2022, 1:03 PM Jim Frazer <jim.frazer...@gmail.com> >>>>>> wrote: >>>>>> >>>>>>> Definitely remove the little cup and plastic screen. Very easy to >>>>>>> do. If there are chunks of rust in there you know you need to find a >>>>>>> screen >>>>>>> for your tank. Apply a lil 3-in-1 oil to to the oring and cup threads >>>>>>> while reassembling. >>>>>>> >>>>>>> Sent from my iPhone >>>>>>> >>>>>>> On Oct 29, 2022, at 1:01 PM, William M <wilmic...@gmail.com> wrote: >>>>>>> >>>>>>> Mike and Drew, >>>>>>> thanks for your replies. >>>>>>> An ad-on question, is it worth the effort to clean out the screen on >>>>>>> the bottom of the petcock? (-- don't fix something that's not broken?). >>>>>>> Attached is a photo of where I'm assuming it's at, with the pen >>>>>>> pointing at it... >>>>>>> Thanks, William b. >>>>>>> >>>>>>> -- >>>>>>> You received this message because you are subscribed to the Google >>>>>>> Groups "Nighthawk Motorcycle Lovers!" group. >>>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>>> send an email to nighthawk_lovers+unsubscr...@googlegroups.com. >>>>>>> To view this discussion on the web visit >>>>>>> https://groups.google.com/d/msgid/nighthawk_lovers/2b00e92e-3d35-4564-8885-2a9cee5516a0n%40googlegroups.com >>>>>>> <https://groups.google.com/d/msgid/nighthawk_lovers/2b00e92e-3d35-4564-8885-2a9cee5516a0n%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>>>> . >>>>>>> [image: 20221029_093728_HDR.jpg] >>>>>>> >>>>>>> -- >>>>>>> You received this message because you are subscribed to the Google >>>>>>> Groups "Nighthawk Motorcycle Lovers!" group. >>>>>>> To 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