Originally posted by GUNPOWDER
Hi,
I had the same question before, Dino gave these factory settings for D5:
Mid Range needle - Flush with the housing.
Low Speed needle - 4 Turns out.
High Speed needle - 4 Turns out.
Thanks GUN,
This setting can let you start your engine. When I run at track,I usual rich the LSN to 5 turns out. And lean the HSN to about 3-1/2 turns out to extract full power. It depend on the engine temp. and your driving style.