Full spectrum 49s xscream XS900R

[Mjam]

Hi guys,

Wondering if anyone can help me recently bought a ski running the below and I’m trying to get the ideal carb setting mains and jets and n&s pop off for my engine.

Xscream Xs900
FS49’s
RRP pipe
ATP total loss
155 OEM pump

Would appreciate any help out there?

Currently the Carbs are set with 135M 120J n&s 2.3 with a pop off at 15 psi

Also recently pressure tested and it was reading 230 psi in each pot is this usual for a Xscream XS900?

 

[Big Kahuna]

@Philip Clemmons Phil has ran that combo pretty sure.

 

[clouse22]

140 Main
142.5 Pilot
2.0 N/S
95g
#60 Return
2 Check Valves

Jetting is from my old XS900R race gas setup

Your compression numbers do seem high for an xs motor

 

[Mjam]

Really appreciate the help guys!

I’ll update

 

[Freakrider]

I ran 140 m 127.5 p, 1.8 with 80 gm spring #60 return FS49'S on 190 psi pump gas and all the other goodies. Carbs/motor flushed of ethanol after each riding day.

Got 200 hrs /20 gallons R50 through it and everything was still in amazing great condition on rebuild.

 

[pioui1]

I have a few set at home ,if what you received does not work, Let me know