needle position

[Anonymous]

I went with Pods, Yosh race pipe and a Dynojet stage 3 kit with 138 main jets. The bike runs better than it ever has but it still has a decreasing flat spot based on needle position. It was running too rich when I raised the needle up, clip on lowest ( bottom of needle ) position because someone said that the average was the 5 or 6 lowest ( highest needle positions).

I have tried 6, 5, 4, 3 and it keeps getting better, the leaner it is the better and crisper it is, with the smallest flat spots in 5500 plus in high gear.

Am I missunderstanding everyone? before I go to the 2nd highest (leanest) on the needle position should I go all the way to 6 and skip 5?

Why would my bike be opposite of everyone elses?
Leaner has been a definate improvement over the richer settings.


Ian

[Anonymous]

jets

Ah follow your plug readings in mid range grasshopper, and take small steps and skip none

[pano]

Have you given Dynajet tech support a call? I would pick their brains a bit they have been very helpful for me in the past.

Email support:

http://www.dynojet.com/support/emailjets.php

phone support:

http://www.dynojet.com/about_us/contact.php

[Anonymous]

I called and they were very helpful. I am going from a 5 needle position ( 5 from the bottom of the needle to a 4 1/2 with moving the above washer below the 4 clip position.

I will give it a go in a few minutes.


Ian

[Anonymous]

jets

are you watching your plugs??? if there white then your going to have problems, you may have to live with a flat spot with that pipe rather than damage the engine, plug readings count not flat spots

[AOD]

Of course it's running better when you lean it out, it's making more power. At a dangerous heat price though.

As dynojet reccomended, you probably need a shim for a 1/2 needle setting.