How carburettors work on a Speedway GP bike! | Tatum's Tech Talk | FIM Speedway Grand Prix

[@Heavywall70]

Carbs! Just one more thing to love about speedway racing Keeping it so pure and traditional and mainly about the riders’ skills.

[@CaryCotterman]

Tatum's technical videos are brilliant. He explains speedway like Carl Sagan explains the universe. I wish more of my university professors had been as good as he is at lecturing.

[@majorkilljoy]

love this, got the right balance between taking simple enough so we understand, but not dumbing it down so much hes speaking to us like idiots

[@georgewhiteford9869]

Interesting video Kelvin. It’s long enough to keep your interest and concise enough for you to get the point of the topic. I didn’t imagine a speedway bike’s carburettor looking like that. It looks like an expensive piece of kit!

[@nonopus3125]

Thanks Kelv, top drawer.

[@AshleyT18]

Love this, more information please!!

[@classicrider5274]

It is great to see some of the hidden parts of modern speedway machines but I would have liked a little more detail regarding the changes a rider might make during a meeting, why and what?

[@mauibill7233]

There's lots more to know about carbs, too. For example the altitude of the track plays into it. I've also heard that some folks have introduced water into the tank in order to change the power characteristics of the engine. (Nitro does the opposite...but it's banned) Cheers

[@borgred]

Love this info

[@eltel1952]

Great info moreplase

[@DavidCornish]

I understand what you're saying about carb setup, but what about airflow?

[@graemeduckett7576]

Hi from New Zealand,I would like to convert an early J.A.P speedway carburetor to run on petrol.Have you any information on this please?Do i just need to change the jetting or the mixture body as well,and can it be converted to needle on the slide? Regards Graeme

[@malibu188]

Methanol fuel normally needs a higher flow jet in the carburettor.

[@rahulmehra5258]

Nice Video Keep It Up

[@tonybrinson564]

What fuel do these bikes run ? Is it a high octane race fuel , ethanol or ?

[@godsp.a-book7596]

Methanol

[@Heavywall70]

Gods P.A - Book And it smells so good on race day !

[@jamesblan5119]

Who laid the first engine down , Do you know,

[@sixtyshippee]

I suppose you could say some of the very first speedway bikes were laydowns like the douglas twin nothing is really new just refined over many years.

[@darrellkelso9915]

I’m in need of one of the 38mm carbs. Anyone have one since they are no longer allowed?

[@iancraig6070]

Why not use fuel injection?

[@Yelonek92]

I'm waiting for polish subtitles. Not becauese I don't know english, but becauese I don't know technical english

[@peterwrooke]

No, you Poles don't need to know any more than you do. You're already the best in the world! Cheers.

[@Yelonek92]

@@peterwrooke Thank you, but I'm not a rider, non a mechanic, just a regular normal guy who wish to know something more :D

[@christumferens1716]

Can't really blame them for taking our sport seriously can we ;)

[@billmago7991]

Is that a lectron ?

[@TheHypnotstCollector]

Should be 38mm. Big kids need a big carb.

[@philmuskett265]

Has fuel injection ever been tested on a speedway bike?