I recently acquired a 73 RD350 with a few upgrades. One of which is PWK 28mm carbs with reed block spacers. This leaves me with seemingly one option for decent pod filters (pictured) before running into significant frame contact.
The bike came with universal 3" Uni Pod filters, with a rubber backplate. I've spent days trying to find the same filter, without a back plate. No luck whatsoever.
I'd love to run a Y-Boot, but I don't see how that can work, nor am I aware of any option that's not completely custom made. OEM doesn't seem to be an option.
If I rotate the filter inwards, this is the only thing I thinking MIGHT work. Uni 4" angled filter (https://www.scooterworks.com/products/uni-up-4200ast-dual-layer-pod-filter-50mm-angled-clamp?variant=49986005631256&utm_source=google&utm_medium=cpc&adpos=&gad_source=1&gad_campaignid=21388492953&gclid=CjwKCAiAu67KBhAkEiwAY0jAlRx2YgiJtGdOWP9V9BYrk4DHZ8xuBkrCWBIh652rHyBKL9JTDFmPNRoCro0QAvD_BwE)
-Does anyone have a pod filter suggestion that will work here?
-Is there a Y-Boot out there that will work for this application? Something that isn't completely custom made.
Inlet bell size is 50mm
:help:
Is the little bit of contact hurting anything? Asides from the aesthetics?
On my 73 RD350 with an RZ / Banshee 421 stuffed in theres i have billit intakes to lift the TM34 carbs up to clear the cases. this leaves even less spavce for the filters, so I went with a twin filter sock that just fits over the carbs tight enough to stay in place
Quote from: sav0r (CL MotoTech) on December 24, 2025, 01:43:58 PMIs the little bit of contact hurting anything? Asides from the aesthetics?
No sir. That doesn't bother me at all. My desire to run a filter without a rubber backplate is the reason I'm searching. I can't find one that's the same length as the one I'm using (3"). The shortest I can find is 4" and create further clutter.
I am under the impression that a pod with a back plate is less than ideal, and potentially affecting fuel delivery by pressure reflection vs dispersion.
Quote from: rodneya on December 24, 2025, 03:10:25 PMOn my 73 RD350 with an RZ / Banshee 421 stuffed in theres i have billit intakes to lift the TM34 carbs up to clear the cases. this leaves even less spavce for the filters, so I went with a twin filter sock that just fits over the carbs tight enough to stay in place
That's interesting. I would have assumed it would fly off in a hurry. Something to consider. Thanks!
get the 15mm angled all foam ones and angle them in. the link you had, those,. but get them longer, 5" will fit. slide the outer red sock off though.
the ram air is a great way to go as well. :bacon:
You could try soaking a y boot in a 50/50 mixture of wintergreen oil and either xylene or acetone overnight, then putting the PWK's into the openings and let it dry out...
Quote from: m in sc on December 24, 2025, 04:47:08 PMget the 15mm angled all foam ones and angle them in. the link you had, those,. but get them longer, 5" will fit. slide the outer red sock off though.
the ram air is a great way to go as well. :bacon:
Wow! I never would have considered trying 5". Mainly because I didn't think it would fit. Guess that's what I get for not measuring.
I guess a longer intake track that's smooshed together is better than a shorter one that's less smooshed. I appreciate the response. Will likely go this route. :metal:
Quote from: Brad-Man on December 24, 2025, 05:50:52 PMYou could try soaking a y boot in a 50/50 mixture of wintergreen oil and either xylene or acetone overnight, then putting the PWK's into the openings and let it dry out...
That's a thought. Seems like it could become a pain in the butt to re-jet afterwards. I have a buddy with a crispy Y-boot that I'm sure he'll give to me. Worth a shot.
you can get adapters for the y boot to fit. however, there's not much improvement over unis on this setup but its pretty good. I actually have a set of these, they transition nicely. https://www.ebay.com/itm/205329844408?_trkparms=amclksrc%3DITM%26aid%3D1110018%26algo%3DHOMESPLICE.COMPLISTINGS%26ao%3D1%26asc%3D264184%2C297274%26meid%3Db0e71567ab474e98989f2f06e67aee94%26pid%3D101430%26rk%3D1%26rkt%3D12%26sd%3D145136669534%26itm%3D205329844408%26pmt%3D1%26noa%3D0%26pg%3D2332490%26algv%3DCompVIDesktopATF2V2AndXaiHotClickWithCompV6WithEbertNRTRecall%26brand%3DUnbranded&_trksid=p2332490.c101430.m2460&itmprp=cksum%3A205329844408b0e71567ab474e98989f2f06e67aee94%7Cenc%3AAQAKAAABMDJfxvEKz%252FWsdyy97PIVwAhtkTIJPGKp%252Bu7TYjjsvNO4eN9duTRR%252FSVFYts6UXmN8tSK75ee0LypjLaKkPNQ2gkat4DyNLnViXKBVpI1%252B5fAXiG4ymw5%252BD4QiZh5nLn8OmQxsMtW2i8ZUV2pH7rpMHom3tehwcYL74GdskUTIs7%252BsNJe88EaLSRtkkqVA%252BkGhl2iLiCQB9v2SDbCmWXDM138yOcU4PGV9cmIfVPYtDanhBqbvm1cYVWjUy79xVGBqasqT%252B06FVf6RpStTUX5knfyPthf7aHc3jETcSsaf3MYAZCqb%252F4Xb5CiIudSl%252FFC%252BdwwC9w8t18fenoAcBYAFuPCH1ChJVwjeUq2ff1mztyOH22my6e6gZKuQCEoPb%252BCalLgLap8bRaMVWVOKd57irU%253D%7Campid%3APL_CLK%7Cclp%3A2332490&itmmeta=01KD9H0WYT7FX8627R02V9PHPQ
Quote from: m in sc on December 24, 2025, 08:10:46 PMyou can get adapters for the y boot to fit. however, there's not much improvement over unis on this setup but its pretty good. I actually have a set of these, they transition nicely. https://www.ebay.com/itm/205329844408?_trkparms=amclksrc%3DITM%26aid%3D1110018%26algo%3DHOMESPLICE.COMPLISTINGS%26ao%3D1%26asc%3D264184%2C297274%26meid%3Db0e71567ab474e98989f2f06e67aee94%26pid%3D101430%26rk%3D1%26rkt%3D12%26sd%3D145136669534%26itm%3D205329844408%26pmt%3D1%26noa%3D0%26pg%3D2332490%26algv%3DCompVIDesktopATF2V2AndXaiHotClickWithCompV6WithEbertNRTRecall%26brand%3DUnbranded&_trksid=p2332490.c101430.m2460&itmprp=cksum%3A205329844408b0e71567ab474e98989f2f06e67aee94%7Cenc%3AAQAKAAABMDJfxvEKz%252FWsdyy97PIVwAhtkTIJPGKp%252Bu7TYjjsvNO4eN9duTRR%252FSVFYts6UXmN8tSK75ee0LypjLaKkPNQ2gkat4DyNLnViXKBVpI1%252B5fAXiG4ymw5%252BD4QiZh5nLn8OmQxsMtW2i8ZUV2pH7rpMHom3tehwcYL74GdskUTIs7%252BsNJe88EaLSRtkkqVA%252BkGhl2iLiCQB9v2SDbCmWXDM138yOcU4PGV9cmIfVPYtDanhBqbvm1cYVWjUy79xVGBqasqT%252B06FVf6RpStTUX5knfyPthf7aHc3jETcSsaf3MYAZCqb%252F4Xb5CiIudSl%252FFC%252BdwwC9w8t18fenoAcBYAFuPCH1ChJVwjeUq2ff1mztyOH22my6e6gZKuQCEoPb%252BCalLgLap8bRaMVWVOKd57irU%253D%7Campid%3APL_CLK%7Cclp%3A2332490&itmmeta=01KD9H0WYT7FX8627R02V9PHPQ
The more I dive into the interwebs, it seems the difference between pods and Y-Boot on my street machine, is nominal. A Y-Boot would be more desirable in a race application. Would you agree?
Thanks for the responses. You're all over this forum and clearly know your stuff. Merry Christmas
actually either . i run a y boot on the r5 w rd motor, its great.
Quote from: m in sc on December 24, 2025, 08:10:46 PMyou can get adapters for the y boot to fit. however, there's not much improvement over unis on this setup but its pretty good. I actually have a set of these, they transition nicely. https://www.ebay.com/itm/205329844408?_trkparms=amclksrc%3DITM%26aid%3D1110018%26algo%3DHOMESPLICE.COMPLISTINGS%26ao%3D1%26asc%3D264184%2C297274%26meid%3Db0e71567ab474e98989f2f06e67aee94%26pid%3D101430%26rk%3D1%26rkt%3D12%26sd%3D145136669534%26itm%3D205329844408%26pmt%3D1%26noa%3D0%26pg%3D2332490%26algv%3DCompVIDesktopATF2V2AndXaiHotClickWithCompV6WithEbertNRTRecall%26brand%3DUnbranded&_trksid=p2332490.c101430.m2460&itmprp=cksum%3A205329844408b0e71567ab474e98989f2f06e67aee94%7Cenc%3AAQAKAAABMDJfxvEKz%252FWsdyy97PIVwAhtkTIJPGKp%252Bu7TYjjsvNO4eN9duTRR%252FSVFYts6UXmN8tSK75ee0LypjLaKkPNQ2gkat4DyNLnViXKBVpI1%252B5fAXiG4ymw5%252BD4QiZh5nLn8OmQxsMtW2i8ZUV2pH7rpMHom3tehwcYL74GdskUTIs7%252BsNJe88EaLSRtkkqVA%252BkGhl2iLiCQB9v2SDbCmWXDM138yOcU4PGV9cmIfVPYtDanhBqbvm1cYVWjUy79xVGBqasqT%252B06FVf6RpStTUX5knfyPthf7aHc3jETcSsaf3MYAZCqb%252F4Xb5CiIudSl%252FFC%252BdwwC9w8t18fenoAcBYAFuPCH1ChJVwjeUq2ff1mztyOH22my6e6gZKuQCEoPb%252BCalLgLap8bRaMVWVOKd57irU%253D%7Campid%3APL_CLK%7Cclp%3A2332490&itmmeta=01KD9H0WYT7FX8627R02V9PHPQ
Yep. Currently running this on my pwk28 set up. Runs great!
Aweso
Quote from: quocle603 on December 26, 2025, 10:26:07 AMQuote from: m in sc on December 24, 2025, 08:10:46 PMyou can get adapters for the y boot to fit. however, there's not much improvement over unis on this setup but its pretty good. I actually have a set of these, they transition nicely. https://www.ebay.com/itm/205329844408?_trkparms=amclksrc%3DITM%26aid%3D1110018%26algo%3DHOMESPLICE.COMPLISTINGS%26ao%3D1%26asc%3D264184%2C297274%26meid%3Db0e71567ab474e98989f2f06e67aee94%26pid%3D101430%26rk%3D1%26rkt%3D12%26sd%3D145136669534%26itm%3D205329844408%26pmt%3D1%26noa%3D0%26pg%3D2332490%26algv%3DCompVIDesktopATF2V2AndXaiHotClickWithCompV6WithEbertNRTRecall%26brand%3DUnbranded&_trksid=p2332490.c101430.m2460&itmprp=cksum%3A205329844408b0e71567ab474e98989f2f06e67aee94%7Cenc%3AAQAKAAABMDJfxvEKz%252FWsdyy97PIVwAhtkTIJPGKp%252Bu7TYjjsvNO4eN9duTRR%252FSVFYts6UXmN8tSK75ee0LypjLaKkPNQ2gkat4DyNLnViXKBVpI1%252B5fAXiG4ymw5%252BD4QiZh5nLn8OmQxsMtW2i8ZUV2pH7rpMHom3tehwcYL74GdskUTIs7%252BsNJe88EaLSRtkkqVA%252BkGhl2iLiCQB9v2SDbCmWXDM138yOcU4PGV9cmIfVPYtDanhBqbvm1cYVWjUy79xVGBqasqT%252B06FVf6RpStTUX5knfyPthf7aHc3jETcSsaf3MYAZCqb%252F4Xb5CiIudSl%252FFC%252BdwwC9w8t18fenoAcBYAFuPCH1ChJVwjeUq2ff1mztyOH22my6e6gZKuQCEoPb%252BCalLgLap8bRaMVWVOKd57irU%253D%7Campid%3APL_CLK%7Cclp%3A2332490&itmmeta=01KD9H0WYT7FX8627R02V9PHPQ
Yep. Currently running this on my pwk28 set up. Runs great!
me
Quote from: quocle603
link=msg=61676 date=1766762767Quote from: m in sc on December 24, 2025, 08:10:46 PMyou can get adapters for the y boot to fit. however, there's not much improvement over unis on this setup but its pretty good. I actually have a set of these, they transition nicely. https://www.ebay.com/itm/205329844408?_trkparms=amclksrc%3DITM%26aid%3D1110018%26algo%3DHOMESPLICE.COMPLISTINGS%26ao%3D1%26asc%3D264184%2C297274%26meid%3Db0e71567ab474e98989f2f06e67aee94%26pid%3D101430%26rk%3D1%26rkt%3D12%26sd%3D145136669534%26itm%3D205329844408%26pmt%3D1%26noa%3D0%26pg%3D2332490%26algv%3DCompVIDesktopATF2V2AndXaiHotClickWithCompV6WithEbertNRTRecall%26brand%3DUnbranded&_trksid=p2332490.c101430.m2460&itmprp=cksum%3A205329844408b0e71567ab474e98989f2f06e67aee94%7Cenc%3AAQAKAAABMDJfxvEKz%252FWsdyy97PIVwAhtkTIJPGKp%252Bu7TYjjsvNO4eN9duTRR%252FSVFYts6UXmN8tSK75ee0LypjLaKkPNQ2gkat4DyNLnViXKBVpI1%252B5fAXiG4ymw5%252BD4QiZh5nLn8OmQxsMtW2i8ZUV2pH7rpMHom3tehwcYL74GdskUTIs7%252BsNJe88EaLSRtkkqVA%252BkGhl2iLiCQB9v2SDbCmWXDM138yOcU4PGV9cmIfVPYtDanhBqbvm1cYVWjUy79xVGBqasqT%252B06FVf6RpStTUX5knfyPthf7aHc3jETcSsaf3MYAZCqb%252F4Xb5CiIudSl%252FFC%252BdwwC9w8t18fenoAcBYAFuPCH1ChJVwjeUq2ff1mztyOH22my6e6gZKuQCEoPb%252BCalLgLap8bRaMVWVOKd57irU%253D%7Campid%3APL_CLK%7Cclp%3A2332490&itmmeta=01KD9H0WYT7FX8627R02V9PHPQ
Yep. Currently running this on my pwk28 set up. Runs great!
I'll have to give it a shot. I reviewed the jetting table and there was very little (if any) data around jetting a PWK with a Y-Boot. Do you have a rough foundation of where to start with jetting the Y-boot?
Current jetting is very fat and I assume I'll need to lean it out with a Y-boot.
38-42 pilot
jjh needle middle
142-150 main
should get you close
I have my write up on one of the thread with hopefully some updates this spring and summer. My baseline jetting is what Mark said with some tweaks here and there for my application.
Quote from: m in sc on December 26, 2025, 08:56:22 PM38-42 pilot
jjh needle middle
142-150 main
should get you close
Thank you, sir! I'm going to attempt properly jet the pods first, with the Y-Boot as an alternative. I'm collecting reference points for future modifications, so thank you again! I've jetted a few 2T dirt bikes (Beta), but all had electronic oil injection. This will be my first attempt with a premix bike.
Do you have a baseline recommendation for your pod bikes? A rough estimation would be very helpful. Your elevation and climate are similar to mine (GA). Current pilot and needle fat. Only change I've made is running 40:1 vs 50:1.
-Reed spacers (cylinder side)
-PWK 28mm
-Spec 2 classic pipes (possibly intended for an RD400)
-per your suggestion, Uni 4" PODs on the way.
-Dyna S ignition
TP: (not even under load)
0-1/4: VERY blubbery and inconsistent.
1/4-3/4: distinctly feel the transition from pilot to needle. On a flat road, whack the throttle, very slow to wind up.
3/4-WOT(7500-8000 RPM): front tire lifts and I laugh to myself.
thats probably mostly needle. use the same base w all foam pods, the jetting isn't much if any different usually.
:righteous: My brother in 2T obsession. Thank you very much. Love to see how helpful guys are on this forum. Way better than FB.
FB can be helpful. Plenty of people on there that are not part of this forum. Just do your part by giving back to the community after you learn about these bikes.
The premix can be 40:1.
The air mixture screw is quite impactful to your throttle response on that PWK. Start with 1.5 turns out from flush and adjust after it warms up. Not sure if you got the PWK with a powerjet (pretty common), but that will impact your WOT.
I currently run OKOs on my bike, which is a clone of the PWK with oil injectors.