Dt 125r dyno

jonne123

I dynoed the dt it produced 13hp full power. There is this streetbike with dt engine that produced 14hp on dyno. The dyno is diy one. It doesnt like for some reason big bikes with small mopeds it works quite good.

declan

@jonne123 I doubt it’s accurate

Calum

That number sounds about right to me.

jonne123

How is it possible because it has atleast 23-24hp. And in youtube there is a videos of similar hp to manufacturers claims.

Calum

@jonne123 What! They do not make 24 horse power out the factory.

15 is what I'd expect from a fresh DTR motor.

jonne123

But why they have dynoed some 24hp? Thats some bullshit everyone sais that it has 24hp and it doesnt.

https://lh6.googleusercontent.com/proxy/MsEjYg2RFODGCNm4oDlndtU8E5dSHHe6D49YQ7smRqwmEFAeL9BZTYYZJk0H3MAVlcSXh59QXDoRpo2z-mmxTCJUurBvWfbZ4rXqf4oNL8hUL2VsSZoRok9-fCh1OfX8Ig

Calum

https://www.ultimatespecs.com/motorcycles-specs/yamaha/yamaha-dt-125-r-2002

Maximum power - Output - Horsepower 14.10 HP (10.3 kW) @ 7000 RPM

Calum

Tuned? I'm sure it's possible. But not stock.

jonne123

https://www.rrd-preparation.com/en/kit-high-engine-motor-bike-125cc-2-time/671-athena-kit-170cc-125cc-engine-derbi-gpr-tdr-yamaha-dt-2-tzr-time.html

I have giannelli exhaust but even here says stock. How does yamaha have so shitty engines because every other 2 stroke 125cc 1990-2019 makes more power.

Calum

@jonne123 That's not stock though is it.

That's tuned.

Calum

It's not shitty, it's road going.

It's designed to be commuted on daily with virtually zero maintenance.

jonne123

Reads original so full power? 24hp. Do they have regional differences?

Calum

There were a few differences depending on region. But 15 Hp is about what I'd expect to see out of a factory DTR.

A pipe will make a difference and a decent CDI.

The rest will be marginal gains.

jonne123

I guess i have to buy another bike but how could some dynos get 24hp from small changes and another 13hp

Calum

@jonne123 TUNED!

What's so hard to understand about that? They've tuned their bikes.

jonne123

What does tuning mean? Heres one with stock motor. Maybe pipe? https://youtu.be/bAzNrjtCfps

Calum

@jonne123 It means it's not what it was out the factory.

That DTR in the video is heavily modified. It doesn't even have an airbox.

jonne123

Shoot. What i need to do to get more power? I have the better head, giannelli exhaust, carbon reeds.

Calum

@jonne123 Probably about it unless you want a headache.

jonne123

What i need to do to get 25hp? And thats its grazy that yamaha wr 125x has higher tuning stage and more power tham my 2 stroke