Johnnymannen
Husqvarna
AA Class
Today i´ve been evaluating different needles again. I have the PWK 38 on my WR 300 2010. I bought it from Kelly with the JD jettingkit in it. We have about 50F here in Sweden now and i have a 40 pilot and the airscrew 11/2 turns out and a 175 mainjet. I started to evaluate the red and blue needle and i liked the red one best. Leaner off idle and richer on top. Less bludder at light throttleopenings. I have use it 3rd clip for maximum power on the iceracing days and in 1st clip on the road as it gave best off idle character. This Friday i got the CEL needle and two more from HRC 630 here at the forum
. I have evaluated the CEL compared to the red JD needle today. I started with the CEL needle in second clip from top. It started fine and gave a very smooth idle and was slightly leaner in second clip then my red JD needle in 1st clip. It was very smooth at very light throttle. I noticed a slight powerloss from the bottom compared to the JD needle, but it was a more linear powercurve. Easy to control, but slightly less powerful. I raised the clip to 4th to test and it was a little better from the bottom, but bluddered a little more. Just for my own curiousity (wrong spelling?) i measured the needles. I put the needles next to eachother and let the needles drop down as i increased the gap on my measuring tool and measured every 5mm and compared the difference in clippositions.
JD Red needle from bottom tip compared to CEL and up:
5mm: 3,5 clip richer than CEL (Thinner tip)
10mm: 5 clip richer
15mm6 clip richer
20mm4,5 clip richer
25mm3,5 clip richer
30mm2,5 clip richer
35mm 2,5 clip richer
The needles were very close to eachother in base diameter. I guess the JD would be a "K".
JD Blue needle from bottom tipCompared to CEL:
5mm: 0,5 clip leaner
10mm:1 clip richer
15mm: 4 clip richer
20mm:4 clip richer
25mm: 3 clip richer
30mm: 2 clip richer
35mm:3,5 clip richer
40mm:4 clip richer
I also got a EEG needle and i will try that one too. I guess i will get a little more bludder at throttleopening, but it will be intresting to see how it behaves as it has more taper (2 degrees compared to 1,34 on the CEL)
Johnny:sweden:

JD Red needle from bottom tip compared to CEL and up:
5mm: 3,5 clip richer than CEL (Thinner tip)
10mm: 5 clip richer
15mm6 clip richer
20mm4,5 clip richer
25mm3,5 clip richer
30mm2,5 clip richer
35mm 2,5 clip richer
The needles were very close to eachother in base diameter. I guess the JD would be a "K".
JD Blue needle from bottom tipCompared to CEL:
5mm: 0,5 clip leaner
10mm:1 clip richer
15mm: 4 clip richer
20mm:4 clip richer
25mm: 3 clip richer
30mm: 2 clip richer
35mm:3,5 clip richer
40mm:4 clip richer
I also got a EEG needle and i will try that one too. I guess i will get a little more bludder at throttleopening, but it will be intresting to see how it behaves as it has more taper (2 degrees compared to 1,34 on the CEL)
Johnny:sweden: