CMD Kyajet - Jetting Tool for Keihin PWK

Keihin® Professional Edition

For calculation please enter the 3-digit needle code into the following boxes. The current values will be shown immediately and could be adjusted due to your specification via the +/- buttons.

Use needle table type N427-46

Needle comparison: None

Range	Value	Characteristic (Lean Rich)
Taper (A) 1/4 to 3/4 slide position	n.a.
Height (L1) 1/4 to 1/2 slide position	n.a.
Diameter (D) 1/8 to 1/4 slide position	n.a.

Range

Value

Characteristic (Lean Rich)

Taper (A)

1/4 to 3/4 slide position

n.a.

Height (L1)

1/4 to 1/2 slide position

n.a.

Diameter (D)

1/8 to 1/4 slide position

n.a.

For calculation please enter your current pilot and main jet into the following boxes. The current values will be shown immediately in the graph below and could be adjusted due to your specification via the +/- buttons.

Pilot jet (PJ)

closed to 1/2 slide position

112

Main jet (MJ)

1/2 slide position to fully open

Jet comparison: None

For comparison please enter your current and alternative setting into the following boxes.

Current setting

PJ MJ Needle Clip Carburetor

Alternative setting

PJ MJ Needle Clip Carburetor

Slide position

Choose a slide position to highlight the corresponding chart area and show the components acting there.

50 % · 1/2

Slide position (range: closed / fully open)

ClosedOpen

Components active in this area

ND Needle diameter Needle taper Clip HD

The highlighted zone is a guide. Component influence ranges overlap.

Setup evaluation (delta)

The comparison setups are evaluated against the current base setup across four slide-position ranges. Positive delta values mean richer, negative values leaner.

Δ %

After “Evaluate”, the delta evaluation of the available comparison setups will appear here.

Delta values are averages of the already calculated curve within each slide-position range; they are not an additional calculation or recommendation.

Setup Garage

Save the current base setup locally in this browser and load it later as the base or a comparison.

0 Saved setups

Setup name

No setups saved yet.

Change history

Changes to the current base setup are recorded locally in this browser. Earlier or later states can be loaded at any time. A maximum of 100 changes is stored; when more are added, the oldest entry is removed automatically. Up to 10 entries are shown at once, with additional entries available by scrolling.

0 Changes

No base-setup changes recorded yet.

Environmental check

Check how current environmental conditions change air density and mixture tendency compared with the reference.

Temperature

°C

Altitude

Local air pressure (optional)

hPa

Relative humidity

Near reference

Air density–

Relative air density–

Pressure used–

RicherReferenceLeaner

Reference: 20 °C, 0 m, 1013.25 hPa and 50% relative humidity. If no local pressure is entered, it is estimated from altitude.

Note: This environmental check is a physical guide, not an automatic jet recommendation. Engine condition, fuel, intake and exhaust can also affect real behaviour.