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I saw the "317 Hyams" at Barbor this past year, and decided this is the styling I wanted to explore. Such a great looking bike if you happen to catch this thread.

That said, I bought this seat off EBay yesterday. Searching through Google images, this exact seat pan shows up a lot on flat track builds. A couple of Moto Carerra bikes as well.

I want to replace or upholster the padding, but I suck at upholstry. I'm hoping someone can tell me who made these fiberglass seat pans/rear cowls, so that I may be able to locate a better looking pad. One covered in vinyl vs open foam.

My guesses are Saddleman? Moto Carerra? Was there a well know craftsman that made these in the past? They all look identical but I cannot find who made them.

  My brother in 2T obsession. Thank you very much. Love to see how helpful guys are on this forum. Way better than FB. 

38-42 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.

Aweso

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

Yep. Currently running this on my pwk28 set up. Runs great!

me

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

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.

This bike can be yours for the low low price of $2800.

https://www.facebook.com/share/1XYPbHsY9U/?mibextid=wwXIfr

Hoping it's good for everybody!

May 2026 be good for grippin' and rippin' too.

Kudos to a man who emailed me about some parts on Christmas Day. That's dedication to the 2T addicts. Merry Christmas.

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

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

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...

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.

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. 

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.   

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

That's interesting. I would have assumed it would fly off in a hurry. Something to consider. Thanks!

Is 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.   

[without a back plate]

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

-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