Jadus Motorcycle Parts
Jadus Motorcycle Parts
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SR250 Maintenance Part 2: Valve and cam chain tension adjustment
Part two (and final) engine maintenance video for the Yamaha SR250. In this part we go through valve tappet clearance, cam chain tension, ignition timing and spark plug inspection. As mentioned at the end of the video, there are many other things that should be checked as part of your routine maintenance schedule, but these videos have focused on the engine only.
We failed with the filming of the ignition timing (camera was not turned on) but you can see what this looks like in these videos:
th-cam.com/video/eMAwLkSa-tw/w-d-xo.html
th-cam.com/video/ukOcos56N4w/w-d-xo.html
And the ignition advance brackets are available here: modelikocaferacers.com/gb/jadus-motorcycles/4113-power-forward-support-yamaha-sr250-jadus.html
Specifications from video:
Intake valve clearance (cold): 0.05 - 0.10mm
Exhaust valve clearance (cold): 0.12 - 0.17mm
Cam chain adjuster nut torque: 3.0 m-kg (22 ft-lb)
Adjuster cap tightening torque: 0.5 m-kg (3.6 ft-lb)
Specified idling speed: 1200 rpm
Basic ignition timing: 10° degrees +/- 2° (non-adjustable), peak advance: 32°
Spark plug type: BP7ES or BPR7ES (resistor type alternative)
Spark plug electrode gap: 0.7 - 0.8mm
Spark plug tightening torque: 2.0 m-kg (14.5 ft-lb)
As always, any questions, shoot right here in the comments :)
Cheers from Jadus!
มุมมอง: 11 837

วีดีโอ

SR250 Maintenance Part 1: Oil, oil filter and clutch change
มุมมอง 14K2 ปีที่แล้ว
The #100mphsr250 required a clutch inspection so I thought I would take the opportunity to film the process and at the same time show how the oil and filter can be changed - because I already needed to drain the oil and remove the covers etc. In the next video we will look at adjusting valves, cam chain tension and inspect timing. Video segments: 0:43 Drain Oil 3:53 Oil Filter Change 10:12 Clut...
100MPH SR250 First Start
มุมมอง 9K3 ปีที่แล้ว
Join us for the first start of the #100mphsr250 ! Spoiler alert, this was a bit of a fail. The engine is now teared down and handed in to a machinist for oringing. Before tearing down the engine, the bike was ridden up and down the street and it showed a lot of potential - it pulls more like a 500 despite the leaking gasket. However with this extra power, the clutch slips like crazy, despite fr...
Yamaha XV535 Virago Power - Dyno Testing
มุมมอง 16K3 ปีที่แล้ว
As with all of our products, we are extremely thorough with our development and testing. In this video, we dial in the final jetting settings for different exhaust combinations. We did this so we could confidently sell the kit with the correct jets to those of you who have different exhaust set-ups. The kit can be purchased here: www.jadusmotorcycleparts.com/product-page/yamaha-xv535-virago-per...
Yamaha XV535 Drag Pipes Jetting
มุมมอง 2K3 ปีที่แล้ว
Just a quick update on the ongoing jetting and testing process for our performance intake kit. We can't wait to get this kit out to the masses! You'll no doubt feel the difference in the saddle of your ride! Cheers, Jake - Jadus
Yamaha XV535 Virago Exhaust Debaffle
มุมมอง 57K3 ปีที่แล้ว
In this clip we remove the baffles from the stock XV535 exhaust system - for a little more flow and a better sound. Any questions? We'd be more than happy to answer! Cheers, Jadus
Yamaha Virago XV535 Performance Intake Kit
มุมมอง 51K3 ปีที่แล้ว
In this video we go through: - The details of the different stock XV535 intake assemblies - The details of the Jadus XV535 Performance Intake Kit - The installation process of the kit To jump straight into the installation, hit this: 6:13 Got any questions? Post in the comments :) Happy wrenching and happy riding, Jake - Jadus Kits can be ordered here: www.jadusmotorcycleparts.com/product-page/...
Yamaha SR250 Classic: Ignition Timing Advance Brackets
มุมมอง 4.2K3 ปีที่แล้ว
In this clip we install the Jadus Ignition Timing Advance Brackets on the Yamaha SR250 Classic. Apologies in advance for the flashing light - it was not obvious at the time that our workshop lamp would give a strobe effect on camera! These brackets increase ignition advance which results in crisper throttle response and a slight pick up in torque across the rev range but mostly in the bottom en...
Yamaha SR250 Front Wheel Truing
มุมมอง 9924 ปีที่แล้ว
In this video, we take you through the steps of truing the Yamaha SR250 spoked front wheel. This is the single sided drum brake version of the SR250 front wheel - often found on the Specials and Exciters. This method is a bit of a hack method, but it seems to work pretty well. Ideally you would have a truing stand and a dial gauge! IMPORTANT One thing we missed in this video was using some form...
Yamaha SR250 Front Wheel Lacing
มุมมอง 1.3K4 ปีที่แล้ว
In this video, we take you through a unique process to lacing the Yamaha SR250 spoked front wheel. This is the single sided drum brake version of the SR250 front wheel - often found on the Specials and Exciters. IMPORTANT One thing we missed in this video was using some form of anti binding/anti seize paste - like copper or aluminium paste from CRC or LOCTITE. We have used this on other wheel b...
Yamaha XV535 Virago Dyno Testing
มุมมอง 11K4 ปีที่แล้ว
Heres a wrap up of the dyno testing we performed today (May 30, 2020) on the Yamaha XV535 - a 1996 'S'. Dyno runs: 8:14 If you have any questions please post right here in the comments :) Cheers, Jake @ Jadus
How to detect an intake air leak
มุมมอง 36K4 ปีที่แล้ว
Just a quick clip of one method of detecting an intake air leak. Intake air leaks will mess with your bikes running like nothing else. You can think you are chasing jetting problems, spark or timing problems, when the problem can be as simple as a leaky carb boot or seal - very frustrating. So do this test before anything else if your engine is running and you are having idling problems. Any in...
SR250 Air Fuel Screw Adjustment
มุมมอง 14K4 ปีที่แล้ว
In this video we take a look at adjusting the air fuel screw on the Yamaha SR250. We use the custom aftermarket Jadus air fuel screw, but the process is the same with the stock air fuel screw. It is just must easier doing this adjustment on the bike with the thumb screw. The other option is to modify a flat screw driver so that this is possible on the bike. Jadus Custom Air/Fuel Screw is availa...
SR250 Street Tracker - Jadus Test Mule
มุมมอง 4.8K4 ปีที่แล้ว
Just a quick run through of the parts on the current (Corona time 2020) Jadus test mule - the bike that we test all of our development parts on - so you, the customer have the best install and riding experience as possible. Any questions? Shoot! We love to help SR250 fans find inspiration for their bikes. Happy wrenching and happy riding, Cheers!
SR250 18'' Rear Wheel Conversion - True A Spoked Wheel (Part 2)
มุมมอง 2.7K5 ปีที่แล้ว
In this clip we complete the wheel building process by truing the wheel. This is a time consuming, methodical process but it is also very rewarding! See part one here: th-cam.com/video/Mj_JUgpImB4/w-d-xo.html If you have any questions just let us know and we will help you the best we can! Spoke kits are available from the Jadus webshop here: www.jadusmotorcycleparts.com/product-page/sr-250-stai...
SR250 18'' Rear Wheel Conversion - Re-lace A Spoked Wheel (Part 1)
มุมมอง 2.5K5 ปีที่แล้ว
SR250 18'' Rear Wheel Conversion - Re-lace A Spoked Wheel (Part 1)
SR250 Classic Tank Leveling Kit Install
มุมมอง 2.8K5 ปีที่แล้ว
SR250 Classic Tank Leveling Kit Install
SR250 Ignition Relocation Kit
มุมมอง 5K5 ปีที่แล้ว
SR250 Ignition Relocation Kit
SR250 Carburettor Diaphragm Replacement
มุมมอง 20K6 ปีที่แล้ว
SR250 Carburettor Diaphragm Replacement
Jadus Yamaha SR250 Performance Kit
มุมมอง 15K6 ปีที่แล้ว
Jadus Yamaha SR250 Performance Kit
Yamaha SR250 carb rebuild, maintenance, tuning
มุมมอง 22K6 ปีที่แล้ว
Yamaha SR250 carb rebuild, maintenance, tuning
SR250 Ignition Timing Advance Kit
มุมมอง 10K6 ปีที่แล้ว
SR250 Ignition Timing Advance Kit
Jadus SR250 Dyno Testing
มุมมอง 11K6 ปีที่แล้ว
Jadus SR250 Dyno Testing
SR250 Triangle Tidy Kit - Battery Relocation/Hide
มุมมอง 37K6 ปีที่แล้ว
SR250 Triangle Tidy Kit - Battery Relocation/Hide
SR250 Fork Brace Install
มุมมอง 11K7 ปีที่แล้ว
SR250 Fork Brace Install
Jadus Seat Install - SR250 Classic - Bolt on kit
มุมมอง 22K7 ปีที่แล้ว
Jadus Seat Install - SR250 Classic - Bolt on kit
Yamaha SR250 Classic Jadus Seat Install - Frame Bracket Relocation
มุมมอง 11K7 ปีที่แล้ว
Yamaha SR250 Classic Jadus Seat Install - Frame Bracket Relocation
Jadus SR250 Project and Test Bikes
มุมมอง 4.5K7 ปีที่แล้ว
Jadus SR250 Project and Test Bikes
Jadus Yamaha SR250 Tank Levelling Kit
มุมมอง 45K7 ปีที่แล้ว
Jadus Yamaha SR250 Tank Levelling Kit
Yamaha SR250 Frame Loop Install
มุมมอง 20K7 ปีที่แล้ว
Yamaha SR250 Frame Loop Install

ความคิดเห็น

  • @xs650b8
    @xs650b8 4 วันที่ผ่านมา

    Hey I got a 90 couple weeks ago. It's in a thousand part's. Got it cheap. Pistons an cylinder walls scored. I want to fix up an give it a little more performance. THANKS for taking the time. I am interested in.

  • @user-dx5kk3yy4i
    @user-dx5kk3yy4i 10 วันที่ผ่านมา

    Got my today! Gonna fit it in few days when i'm free and write how it feels.

  • @xzouix
    @xzouix 10 วันที่ผ่านมา

    Hi, my I ask you about the valve adjustment? I had my engine serviced by a mechanic, he checked the valves, they are in a good condition. He checked the gaps, the valves were too tight so he adjusted them. The problem is, I had the valves adjusted like 3 times within a span of 1 thousand km, and it doesn't make sense why the valves keep getting tight. And I mean absolutely tight. Would you know why is it happening?

  • @carteomex6198
    @carteomex6198 15 วันที่ผ่านมา

    Amiggo cómo puedo comprar esos accesorios para mi sr y que me los manden a mexico

  • @janithsandaruwan6900
    @janithsandaruwan6900 17 วันที่ผ่านมา

  • @billybobbarker3175
    @billybobbarker3175 23 วันที่ผ่านมา

    Just want to say thanks. Many CV carbs are a bit different in how the diaphragms are retained. For example this old Yamaha I am working on. The most valuable piece of information, and critical one, in your video is the orientation of the slide hole to the carb in/out ports. Two of my 4 carbs have loose diaphragms that the round slide can turn. With your tips, I have glued them and tapped the clamps really tight. They do not turn now. This bike has been parked abandoned for over 15 years. By the time I am done, I am certain it will run good or better than ever

  • @jorgelujan5055
    @jorgelujan5055 หลายเดือนก่อน

    Does this fit the virago 1100?

  • @AbsoluteFitnessKent
    @AbsoluteFitnessKent หลายเดือนก่อน

    Hey guys , excellent video . I have a general question. I installed the kit with no issues. I currently have some straight through drag pipes with custom bafflers installed. Could you give me a rough idea of how many turns/screws I should be adjusting my air/fuel ratio to ? i'm getting a lot of popping when idling and deaccelerating. Even seen a few blue flame pops. I'd be grateful for any advice from the community. safe riding chaps

  • @Corvidoextraviado
    @Corvidoextraviado หลายเดือนก่อน

    Que velocidad alcanza?

  • @lucascastrofayad
    @lucascastrofayad 2 หลายเดือนก่อน

    can it damage the engine overtime? reduce its lifespan in anyway? theoretically the engine wasn't made to support a higher power, right? like harleys are "tanks" downgraded from factory, they are known to support it...

  • @kgti
    @kgti 2 หลายเดือนก่อน

    Question is the front fork from another motorcycle?

  • @KalleMuona115
    @KalleMuona115 2 หลายเดือนก่อน

    I had to warm the baffles with a blowtorch before getting them loose. Great video.

  • @philwhite5815
    @philwhite5815 2 หลายเดือนก่อน

    Where is your battery. My son's 185 is right below the air filter. It's only a 150 CCA and after a few starts( he is learning to ride) I have to charge it. Yes it is a new battery. I m thinking if I modified the Air filter like you have and modify the battery box we might be able to get a bigger battery in. Thoughts?

  • @Rider_Santos
    @Rider_Santos 2 หลายเดือนก่อน

    where is the battery?

  • @ZnCNsura
    @ZnCNsura 2 หลายเดือนก่อน

    Envian a españa?? Puede compartir el link de compra del kit?

  • @jadeashburner2735
    @jadeashburner2735 2 หลายเดือนก่อน

    hello, i have a question, ive set my valve clearance to the middle figure on the feeler guadge but my tappets are still very noisy, would it do the bike any harm to set it on the lower side of the clearance range instead of the middle?

  • @mitchellkennedy3556
    @mitchellkennedy3556 2 หลายเดือนก่อน

    Can get st8s for $200. Still nice

  • @russianfirepower5338
    @russianfirepower5338 3 หลายเดือนก่อน

    Great video! If I want to debaffle mine, do I need to modify anything else on the bike besides just removing the baffles? Like is there a risk of anything breaking with this mod?

  • @DougMeyo
    @DougMeyo 3 หลายเดือนก่อน

    Good video! I have a81 sr250 gas leakes from back of the carb when running from the barrel,not when the engine is off any ideas

  • @Hagbergscorner
    @Hagbergscorner 3 หลายเดือนก่อน

    Everything felt normal until you said "Here in Sweden" 😊 I'm in Sweden too, and thinking of buying a XV535.

    • @greyriddance64
      @greyriddance64 2 หลายเดือนก่อน

      Bought one last year, in Sweden. Go for it!

    • @Hagbergscorner
      @Hagbergscorner 2 หลายเดือนก่อน

      @@greyriddance64 I Bought one a week ago. Love it, just need to change to a more comfortable handle bar.

  • @Ladosligese
    @Ladosligese 3 หลายเดือนก่อน

    is it carb cleaner you`re spraying ?

    • @briangoddin3713
      @briangoddin3713 28 วันที่ผ่านมา

      Exactly-he doesn’t say what he is spraying. That’s pretty import info that was left out. 🤦🏻‍♂️

  • @hugobriggs-vc3td
    @hugobriggs-vc3td 3 หลายเดือนก่อน

    Where am i able to purchase your products now? modeliko is apparently not stocking your products anymore

  • @HenryKhiev
    @HenryKhiev 3 หลายเดือนก่อน

    Just ordered mine! Happy to support your business endeavors \m/

  • @karlh4313
    @karlh4313 4 หลายเดือนก่อน

    What size jets do you go to? Thanks!

  • @FernandoelChachi
    @FernandoelChachi 4 หลายเดือนก่อน

    Single question, master: Do you think that the original carburetor is the best you can use for the SR?

  • @Afterhourtire
    @Afterhourtire 4 หลายเดือนก่อน

    Has anyone tried the roll pin mod yet?

  • @CarlosGarcia-sj5fw
    @CarlosGarcia-sj5fw 5 หลายเดือนก่อน

    Hey,love your content,can you post all the sizes of the JIS screwdrivers i need to open this carb?,i need to order it online and dont wanna miss it

  • @MIGUELGAUTHIER
    @MIGUELGAUTHIER 5 หลายเดือนก่อน

    What jetting do you need to do for de bafle and removing cat basacly strait pipe

  • @user-qy4pd2mt6f
    @user-qy4pd2mt6f 6 หลายเดือนก่อน

    Me gustaría comprar un asiento y un nivelador de tanque de gasolina. Haces envíos a CDMX

    • @JadusMotorcycleParts
      @JadusMotorcycleParts 6 หลายเดือนก่อน

      Hi! All of our parts can be purchased from Modeliko Cafe Racers and you can check with them which countries they ship to. Thanks! modelikocaferacers.com/gb/281-jadus-motorcycles

  • @simoneruffini86
    @simoneruffini86 7 หลายเดือนก่อน

    work done today. thanks to your instructions. it was hard to remove them but in the end the sound is spectacular. Is it necessary to regulate the carburetion?

    • @JadusMotorcycleParts
      @JadusMotorcycleParts 7 หลายเดือนก่อน

      Hi! Great you managed to remove them. You will most likely not need to adjust your main jets but you should definitely adjust your air/fuel screw setting to allow more fuel at low rpms. It should be adjusted to between 3-4 turns out.

  • @stephenmelrose1082
    @stephenmelrose1082 7 หลายเดือนก่อน

    Hi I've just bought a 535 already fitted with drag pipes will this kit have suitable jets ? Thanks and great easy to follow video 😊

    • @JadusMotorcycleParts
      @JadusMotorcycleParts 7 หลายเดือนก่อน

      Yes, the kit comes with a range of jets that suit several different exhaust set ups, including straight pipes :)

  • @henkhenksen1699
    @henkhenksen1699 7 หลายเดือนก่อน

    When I start my bike it immediately revs to like 10k, can that also be a vacuum leak?

    • @JadusMotorcycleParts
      @JadusMotorcycleParts 7 หลายเดือนก่อน

      Could be. If so, it would be quite a sever one!

  • @jackvanni91
    @jackvanni91 7 หลายเดือนก่อน

    With a debaffled exhaust do i need to rejet the carburetors or can i leave the bike as it is? I don't understand if it's dangerous for the bike or not...

    • @JadusMotorcycleParts
      @JadusMotorcycleParts 7 หลายเดือนก่อน

      If you have the stock intake, you most likely will not need to adjust the main jets. But you should definitely adjust the air/fuel screw so that it is between 3-4 turns out. This is so you allow more fuel to flow at lower rpms. If you have a modified intake you should adjust the main jets as well.

  • @khunangkaro
    @khunangkaro 7 หลายเดือนก่อน

    I have one rewired.... But now in disarray, no spark. Must change the black ignition electronic box. I left it sitting idle, because driving ISUZU D-MAX is so much safer in Thailland's crazy scary traffic conditions.

  • @mcrand7887
    @mcrand7887 7 หลายเดือนก่อน

    Hi, To my experience and understanding, you don't have to remove the top ring, it's only to reinforce the diaphragm from sliding off from above, you can rotate the ring easily, and it's not holding on to rubber. Only the bottom plastic ring is holding tight to the diaphragm. Instead of sliding the diaphragm from the top, you can slide it gently from the bottom holding slide upside down and bring it to its original top position. One thing I am confused about is the bottom plastic ring. I think it has an important role since it works as a spacer for inner side of the slide seat probably to stop gas leakage coming in contact with a diaphragm. What do you think?

    • @JadusMotorcycleParts
      @JadusMotorcycleParts 7 หลายเดือนก่อน

      @mcrand7887 Thanks for your concern, but in this case, the plastic parts need to be removed to be able to install this particular replacement diaphragm. There are other kits that have different designs, but we do not have any experience with them. We have the same response to your inquiry about the lower plastic ring. And you are incorrect on your third assumption about the lower ring needing to be there to form a seal and to keep fuel away from the diaphragm. This replacement becomes the new seal and maintains the original dimensions of the original diaphragm, just with one part instead of a three part design. The rubber of these diaphragms is also extremely durable and tolerant of fuel, so if they get fuel on them it is not a concern at all. All the best!

  • @collyernicholasjohn
    @collyernicholasjohn 9 หลายเดือนก่อน

    Can’t tell you how much I appreciate these videos, Jake, you a f***ing legend!

  • @collyernicholasjohn
    @collyernicholasjohn 9 หลายเดือนก่อน

    Thanks for the tips Jake

  • @robi6713
    @robi6713 10 หลายเดือนก่อน

    I found a 1998 sr250 classic for 1000 euro, it has brake disk up front, would it be a good bike for a begginer?

  • @gromkour5341
    @gromkour5341 10 หลายเดือนก่อน

    My ninja 300 has a whine and it starts whining as soon as I start it but is MUCH more noticeable when it’s warmed up and it gets really annoying. My 1st and 2nd gear seem a little bit slower but I haven’t stalled in 1st while at a light yet. It’s a very annoying whine that gets louder around 20kph It could be my garbage fairings that won’t connect properly, I’ll try some tape on those to stop wind from getting in but if it’s not that then I’d love some thoughts on what it may be as I have no experience with working on my bike solo and don’t know what to look for.

  • @joharb
    @joharb 10 หลายเดือนก่อน

    Great video! Do you know if you can lace any 36 spoke rim to a 36 spoke hub. I have an XL 250 rim which is 18” 36 spoke I am wondering if the Jadus 18” upgrade spoke set would work with that rim.

    • @JadusMotorcycleParts
      @JadusMotorcycleParts 10 หลายเดือนก่อน

      Hi Jo, most likely not. Most hubs have different spoke hole spacing's and diameters so the spoke lengths would be different.

    • @joharb
      @joharb 10 หลายเดือนก่อน

      @@JadusMotorcycleParts Thanks Jake.

  • @TitoRober1980
    @TitoRober1980 11 หลายเดือนก่อน

    No encuentro el listado de baterias, cuales son las que recomiendas?

    • @JadusMotorcycleParts
      @JadusMotorcycleParts 11 หลายเดือนก่อน

      The batteries are listed here: www.jadusmotorcycleparts.com/product-page/sr250-frame-triangle-tidy-kit

  • @keithhampton9700
    @keithhampton9700 11 หลายเดือนก่อน

    My friend had one of those. He and his wife went from NM to CALI on that thing. Not a bad small cruiser.

  • @CarlMont3
    @CarlMont3 11 หลายเดือนก่อน

    Great video and totally to the point. What fluid did you use?

    • @JadusMotorcycleParts
      @JadusMotorcycleParts 11 หลายเดือนก่อน

      Thanks! This is a cheap WD-40 equivalent :)

  • @devond1
    @devond1 ปีที่แล้ว

    What are you using for the upper oil plug? Looks metal as opposed to the stock rubber

    • @JadusMotorcycleParts
      @JadusMotorcycleParts ปีที่แล้ว

      Hi! I am not sure what you mean… Do you mean the oil filler cap? The stock one is plastic and the one I have installed here is a metal one with an oil temperature guage in it!

  • @thevixty3006
    @thevixty3006 ปีที่แล้ว

    Hey man. Really curios about your opinion. How bad is it if the engine leaks oil from the top of the back cilinder ?

    • @JadusMotorcycleParts
      @JadusMotorcycleParts ปีที่แล้ว

      It depends... old bikes in general leak oil in some places due to different reasons. It could be just a simple thing like a tired hardened oring that isn't forming a seal any more... or it could be leaking from around the cam chain tunnel... those things are no big deal. As long as you keep an eye on the oil level until you decide to replace orings and gaskets etc. It is worse if the head is leaking oil through the valve seals, then the engine performance is affected. It is also more difficult to replace those seals - it is often a head-off job.

    • @thevixty3006
      @thevixty3006 ปีที่แล้ว

      @@JadusMotorcycleParts life saver. Thank you 😘

  • @butewinner6409
    @butewinner6409 ปีที่แล้ว

    Nice vid, what size jet did u install? Stock is 107.5

    • @JadusMotorcycleParts
      @JadusMotorcycleParts ปีที่แล้ว

      Different models and years have different stock main jets. We send a range of jets in the kit with a jetting guide so that customers can match jetting to their exhaust system. This also allows for carb adjustments down the road if you want to install a different exhaust system :)

  • @brandonotte3359
    @brandonotte3359 ปีที่แล้ว

    Did this ever make it 100mph?

    • @JadusMotorcycleParts
      @JadusMotorcycleParts ปีที่แล้ว

      Sure did! We're taking our time making a video about it ☺

  • @emilhansson5488
    @emilhansson5488 ปีที่แล้ว

    Great video with detailed instructions :) I would just put rivet nuts into the baffles themselves and then put them back on with screws before the inspection :)

  • @user-yu2um4fp2w
    @user-yu2um4fp2w ปีที่แล้ว

    👍👍👍🔥

  • @frankyeates2010
    @frankyeates2010 ปีที่แล้ว

    Is there a high pipe available for a scrambler type sr250?

    • @JadusMotorcycleParts
      @JadusMotorcycleParts ปีที่แล้ว

      Unfortunately not (that we know know of). We called our first pipe 'Low Slung' because we had intensions of doing a high pipe. But sadly it never happened... I wonder how much interest there would be in such a pipe?