High Keihin / PWK Voca gum kit

Set of jets in a very practical box, ideal for Keihin PWK, VOCA, OKO, Polini PWK - CP and Stage6 R/T carburettors. Choose from different sizes.

Composed of 10 units

• VCR-RD13.JET.PWK1: 98, 100, 102, 105, 108, 110, 112, 115, 118 and 120.
• VCR-RD13.JET.PWK2: 122, 125, 128, 130, 132, 135, 138, 140, 142 and 145.
• VCR-RD13.JET.PWK3: 148, 150, 152, 155, 158, 160, 162, 165, 168, 170.

Carburettor adjustment tip:

To begin, you need to let the bike idle for about 3 minutes so it reaches operating temperature. Once the bike is warm, give it full throttle for a few seconds and hold it at maximum RPM for about 5 seconds without releasing the throttle, then turn off the bike using the key and proceed to remove the spark plug. Depending on the colour of the spark plug, you can determine the condition, for example:

• If the spark plug is a light coffee with milk colour, the bike is running lean and you need to increase the main jet by about 5 or 10 points.
• If the spark plug is just coffee coloured, it is running rich, so you need to decrease the main jet by about 5 or 10 points.