ZSDTRP FCR PWK Carburetor Super Presisi Repair Kit Slide Needle Main Nozzle Jet Needle N427-46 Set
Sudco pwk nozzle, the nozzle head can be installed in the pwk those who have karbu pwk can try installing the sudco nozzle kit so the carburetor changes so it feels sudco .. the engine breath becomes longer and more powerful both at lower rpm and at upper rpm … please try and prove its efficacy in jacking up your carbohydrate settings …
FOR THE RESULTS OF THE SETTING, PLEASE CHECK THE SIGNS OF THE STAR IN THE TESTIMONY ABOUT THE FLAG TITLE
NOZZLE HOLE CAN BE REQUESTED FROM SIZE 8/12/16/18/20/24/30
# 8 HOLE ORIGINAL SUDCO
# HOLE 30 full racing
RECOMONDED FOR: DRAG, ROADRACE, MOTORCROSS, DAILY RACING
CAN INSTALL IN PWK START UK: 21/24/26/28/30/32/34
KEIHIN Jet needle N427-46-JFN/JFQ/JJD/JJE/JJF/JJG/JJJ With Genuine Keihin Clip For Needle 0403-802-1000 (018-033)
Genuine Keihin high quality part.
Keihin part number: N427-46-JJE/JJF/JJG/JJH
This fits:
Keihin PE 26-28 carburetors
Keihin PWK 21-34 carburetors.
Together with the mixer tube the jet needle regulates the composition of the mix in the partial load or half throttle ranges. The needles differ in terms of their colour, pattern, internal coating and dimensions. Each of the ranges has a specific effect on the composition of the mix. As a rule, the following applies: The bigger the jet, the richer the mix that results. The bigger the needle, the earlier the mix is enriched.
The needle also has various clip positions, with which it is possible to determine its position. The higher the clip snaps into place on the needle, the deeper it is immersed in the mixer tube and the leaner the mix is in the half throttle range. If the needle is already in the lowest position and mix is already too rich (evident for instance 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.
