How does KTM power valve work?
In the KTM 250/300 engine design, the power valve is held closed by a pair of springs, and exhaust gasses force it open as they increase in velocity and push harder against the flap. Change the spring to make your exhaust flap snap open quickly (red spring) or open gradually (green spring).
How much horsepower does a KTM 125 EXC have?
| Make Model | KTM 125 EXC Enduro |
|---|---|
| Starting | Kick |
| Max Power | 10.9 kW / 15 hp @ 7500 rpm |
| Transmission | 6 Speed |
| Final Drive | Chain |
What does adjusting your power valve do?
The adjuster changes the preload on the main power-valve spring. The power valve is held in the closed position by a spring. You can change when the power valve opens by adjusting preload on this spring. This affects the power-delivery characteristics of your engine.
How does the power band work in a 2 stroke?
The “Power band” is between the point in the rev range where the engine starts producing useful torque, and the point where the torque, and thus, power tails off, reduces. All ICE engines have a “power band” Power (horse power) is a function of torque x revs.
How much HP does a 125 2-stroke have?
The YZ125 has a 124 cc (7.6 cu in) reed valve-inducted two-stroke engine. It was air cooled from 1974 to 1980, and liquid cooled since 1981. It has a Mikuni 38 mm TMX series carburetor. The engine produces 35 hp (26 kW).
Which is power valve tuning kit for KTM?
Whether you prefer smooth linear power, all torque with a mild delivery or a hard hit, the Slavens Mule Power Valve Tuning Kit helps you tune it the way you like it, from mild to wild. NOTE: The KTM/HQV owners manual says to not adjust the power valve on 2018-2021 tpi models. They state this to cover their butts for emissions standards.
Which is the best KTM 125 XC to buy?
Making use of a lightweight Cross-Country specific chassis and the most competitive 125 cc 2-stroke engine in the class, the 2022 KTM 125 XC delivers superior agility and power to fulfill the demands of any young and aspiring Offroad racer. This 2-stroke screamer is the ultimate entry point into the pro Offroad ranks, with factory looks to boot.
How many power valve springs does a KTM HQV have?
Includes 3 power-valve springs, green (mild), yellow (stock), red (wild) NOTE: The KTM/HQV owners manual says to not adjust the power valve on 2018-2020 tpi models. They state this to cover their butts for emissions standards. Adjusting the PV on 2018-2020 models is no different than previous year models.
What kind of spring does a KTM have?
Your KTM came with green, yellow, and red auxiliary springs. Change the spring to make your exhaust flap snap open quickly (red spring) or open gradually (green spring). This chart shows the effect of auxiliary spring choice on power valve opening behavior in the KTM 250/300 engine.