Carburettor KEIHIN PWK 28 BD

Race

28 mm
connection engine: 35mm
connection filter: 49mm
main jet 135
idle mixture jet 38
jet needle 46JJH

TUNING SPORT – high-performance
This product fits on almost all products Product description
High end carburettors in OEM quality, the Keihin flatslide series KEIHIN PWK flat slide of the PWK and PWM series of carburettors are the benchmarks in the industry. High quality, produced to the tightest tolerances level they are, at the moment, second to none in terms of quality and performance. Hence a number of manufacturers relies on Keihin as the original equipment manufacturer for the competition motocross bikes. The carburettors are great to tune because they clearly distinguish between the different throttle opening position. KEIHIN PWKs have great throttle response and work extremely well over the entire rev range. This makes them not only the first choice for race engines, but also great for tuned road engines.
Flatslide cart of the latest design.
OEM quality and reliability
Great tuneability with a huge choice of components
Numerous different versions
We stock the powerful Keihin PWK Carburettors in sizes from 28mm to 41.
The Airstriker version is designed for improved low rpm throttle response
The PWK 41 Pro is a painstakingly optimised version with a CNC machined bellmouth
The PWK-S carburettors share their shorter body with the PWM carburettors but combine it with the slide of the PWK carburettors. They are ready to be run with a TPS throttly position system.
The most recent and most powerfull Version of the Keihin carburettors are the PWM with the elaborate double D-shape slide.
Specification- and tuning options
Some Keihin carburettors come with a a powerjet which riches the mixture under full bore. With this option the mainjet can be chosen smaller which improves engine pickup over the range. The great advantage of the Keihins is their easy tuneability. They give great and easy to interpret feedback by clearly reacting to changes with altered throttle response and engine smoothness. There is a huge choice of well documented needles, jets and slides, easy to find, to fine tune the engine. With their renowned performance and reliability the Keihin flatslide carburettors have been to inspiration of many a copy.
Conclusion:
High End tuning carburettor. Often copied but never equalled.

The Best Setup
Our-TIP:

Use the guides for the overflow hoses to keep your engine clean art.-no 22159452
The KMT jets are very accurate and making jetting easy art.-no. KK150172
Upgradable with TPS (Throttle Position Sensor): art.-no. 40099100
Explanation of the carburettor markings: BD carb.= Adjustment screw to the right of the airflow direction BS carb.= Adjustment screw to the left of the airflow direction