Jadus SR250 Dyno Testing

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Jadus SR250 Dyno Testing

Рет қаралды 11,195

Күн бұрын

In this video we have edited together some footage from our dyno testing - over 20 hours of testing across several days, two different dyno's, two different operators and two different bikes - just to make absolutely sure that the parts worked, that the tests were repeatable and to achieve the results we wanted - and are now able to promise our customers.
These results are the culmination of two years of hard work - developing, prototyping and testing the parts. We are now able to offer a range of bolt-on performance upgrade kits for the SR250 that provide real concrete results - just try for yourselves!
Read all about the kits and the development of them here: www.jadusmotor...
For results and parts skip to here: 6:46

Пікірлер: 19

@Hans-fz6cc 5 жыл бұрын

Just saw a video for Mutt motorcycles, gorgeous bikes, will save you all the welding and tuning for a great price

@JadusMotorcycleParts 5 жыл бұрын

If you would buy a Mutt over an old Yamaha, you miss the entire point.

@joie0 6 жыл бұрын

Could you also state your carb jetting and elevation? Just as a suggestion for those who purchase the product. Im sure you probably put it in some sort of directions for people when you sell them the product. If thats the case, never mind then. Awesome research! Im following the build on the forums too. Keep it up.

@JadusMotorcycleParts 6 жыл бұрын

Thanks man! Yeah the kit comes with the right Jets. For most applications it is a 50 pilot and a 115 main with the needle in the middle (stock) position. The CV carb is great for differences in altitude - it is pretty forgiving there. Usually only need to play around with the air/fuel screw which can be anywhere from 1.5 to 3.5 turns out depending on location ;)

@FernandoelChachi 2 жыл бұрын

Hi Jadus, I would like to know about the transmission kit in our Yamahas. I've got the SR Special from 1995 and it comes with 14 and 40 teeths, but the SR comes with 16 and 46 instead (a lot more). The Special has a smaller rear wheel (16" instead of 18"). Do you have the original relation in your SR Special or will it perform better with another?

@JadusMotorcycleParts 2 жыл бұрын

We always run a 17 on the front and depending on what the use is, a 46, 40 or even a 36 on the back (the 36 is custom made). Don't forget that a 16'' wheel can have the same circumference as an 18'' wheel - all depending on the tyre. We use this site to check that: www.tacomaworld.com/tirecalc?tires=140-90r16-110-90r18

@jengeli105 4 жыл бұрын

Hola a que son debidas las explosiones al quitar el gas, gracias y un saludo

@JadusMotorcycleParts 4 жыл бұрын

@jengeli105 4 жыл бұрын

@Estebita Latorre gracias por tu informacion me ha sido muy util ahora ya se de donde bienenlas explosiones que efectua mi moto, gracias por tu ayuda y un saludo

@TiagoRuivo 4 жыл бұрын

doesn'te the SR comes with 20 hp stock? why those numbers of 15hp?

@JadusMotorcycleParts 4 жыл бұрын

Hey man! Nope, 20hp stock is a pipe dream. That is what Yamaha claimed - if you look at any period tests where they dynoed the bike, you'll find the same info, the stock SR250 249cc models make about 15hp at the rear wheel and about 18hp at the crank and the 239cc models make even less - down to 13.5hp at the wheel and 16hp at the crank.

@TiagoRuivo 4 жыл бұрын

@@JadusMotorcycleParts I guess a GN makes more sense. since there is a 300cc big bore kit available...

@J2I3H 5 жыл бұрын

Is it wheel horsepower? How is the 100 mph sr set up?😎

@JadusMotorcycleParts 5 жыл бұрын

There are both crank horse power and wheel horse power measurements - there is more information on this page here: www.jadusmotorcycleparts.com/performance-parts

@JadusMotorcycleParts 5 жыл бұрын

The 100mph bike is a completely different animal! Many internal engine mods etc. If you have time and want to know more, you can read about it here: www.dotheton.com/forum/index.php?topic=74386.0

@J2I3H 5 жыл бұрын

@@JadusMotorcycleParts thats something i'm gonna read! Thanks! Do the graphs on your site show the wheel horses? That would be quite impressive for our little two valve head:)

@JadusMotorcycleParts 4 жыл бұрын

@@J2I3H Hey man, the graphs show power at the crank. Unfortunately, that fact that everyone believes the Yamaha figure of 20hp is a shame. The most important thing with Dyno testing is the before and after - what difference/increase in performance did the parts have over stock - in this case, a 20% increase. This has been backed up by several individual customer tests as well.