x2 jetting base line specs

[w-nut]

i thought id might be a good idea to start a thread so we can all come in and tell wot engine set up and jetting we are useing , it would be handy to have a big list in one place so people could find and look it up easly

here is mine
95 small pin 750 fpp 650 pipe 160psi compression carbon reeds (unknow brand came with the carbs) duel 40mm kehin sxi carbs everything else stock

Main jet : 125
Pilot Jet : 75 (Stock)
High speed screw : 3/4 turn out from closed
Low speed screw : 1 turns out from closed
Needle & Seat : Stock
Spring : Stock
Comment: Stock spring

 

[Crab]

752 small pin with SXR carbs and crossover filled, SJ B chamber, no chokes, modded low restriction stock airbox.
170psi
75 low
145 high
1.5 n/s
80 gram spring/33psi
3/4-1 low adjuster
1/2-3/4 high adjuster

 

[grezzmky]

more people should have posted here

 

[w-nut]

bump come on guys post up what you are running to help every one out

 

[shawn_NJ]

Small pin 750 and big pin 750. Coffman pipes, single 46 SBN, 650 elec

Main jet : 150H (sp) 155H (bp)
Pilot Jet : 120L
High speed screw : 2 turn out from closed
Low speed screw : ? turns out from closed
Needle & Seat : 2.3n/s
Spring : 95G

 

[3wheelerdude]

I would really like to know what size jets in a 44sbn for a 650 with pipe only.

 

[Laserman]

I have a Sport Cruiser with 125 high 120 low 2.3n\s 95g spring. Coffman's pipe\watebox, PJS exhaust manifold, PJS intake manifold.

I have a 550\650 conversion ski with dual 44s, 135 high 115 low 2.3 n\s 95 gram spring. PJS exhaust mani, PJS pipe, stock waterbox, Mariner dual 44 intake. (still tuning top end).