Originally Posted by
AZTman
My last 5port had the long LSN, the GX5R comes with the short LSN... until the 2011 GXII's I guess. Should I use the long LSN from my old 5port? Should I buy a new one? Or use the short LSN in the motor?
Thanks for the help guys!
Travis
It doesn't really matter. The long needle gives a slightly smoother powerband, and maybe a little better economy. It's easy to swap them over.
Just remember the LSN sits about the same, say 1.5 - 1.75 turns in whether you are running short or long needle, but the HSN settings are quite different for the two LSN needles -
Short LSN needle - HSN = .5 to .75 "TURNS" in from flush.
Long LSN needle - HSN = 1 to 2 "HOURS" only in from flush.
If you get lean bog at or below half a tank with the long LSN fitted, then richen the HSN 1 hour at a time until the lean bog goes.
See this tuning guide for more details on the long needle tuning -
http//:
www.go-racing.vpweb.co.nz/Tech-Tips.html
