KEIHIN 61831110 PIN DEN LAMBRETTA LI 3 125 1961-1967

Details

KEIHIN DEN needle for KEIHIN PWK 33-41 for KEIHIN PWK 33-41 Together with the mixer tube the needle jet regulates the mixture composition in the partial load or half throttle ranges. Needles differ in terms of color, model, internal coating and size. Each range has a specific effect on the composition of the blend. As a general rule, the following applies: The larger the jet, the richer the resulting mix. The bigger the needle, the richer the mix becomes. The needle also has various clip positions, with which you can determine the position. The higher the clip snaps into place on the iron, the deeper it is immersed in the mixer tube and the leaner the mixture is in the mid-throttle range. If the needle is already in the lowest position and the mix is ​​already too rich (evident for example if the Vespa sounds like a 4-stroke scooter, when its slide is half open), then you should choose a thicker needle or a smaller mixer tube. Conclusion: In this case, the patient test pays the carburetor can only work perfectly with a suitable needle. SIP-TIP: Needle clips are often lost. The best idea is to order the replacement clip (No. P3420104) at the same time.### (for comparison purposes)