i need a little jetting help on my x2

[Scraggly]

i would like to hear from the board a good baseline jet spec to start with.
this is what i got

-kawi 650 stock bore, stock porting

-205psi comp

-mariner pipe

-weastcoast w-box

-straight 15.5

-single sbn44

-vp110 40:1 synthetic

when i got the carb it was jetted for a 701 b-pipe, i took it out today and it ran good but had a little hesitation on both low and high. i dont have much experience with ski carbs yet so i need a little guidance to get me going.

thanks
matt

 

[SuperJETT]

As long as it's not a Yamaha OEM 44, 120L/140H works pretty well to start with, then you'll probably end up leaner. Around 25psi popoff, whatever combination to get that.

 

[Scraggly]

i dont think it is an oem carb, what should i look for to tell?

this is the carb

 

[Crab]

120low, 160 high, 20psi popoff should be close.

 

[Scraggly]

thanks guys

whats the best place to get jets?

 

[WFO Speedracer]

WSM ,I just bought some oem Mikuni jets for mine from WPS .I had to buy a pack of four so to get the 4 jets I needed I ended up with 16 jets,15 of which I will probably never use again.No help to you Rags as they are way too big for your application.I can however get you pilot and main jets for $1.50 a piece plus the cost of a stamp of course.They come in 1/2 sizes also just like oem jets.

 

[Cliff]

ive got a 650 sx set up similar to your ski, remember that it gets humid as hell here in the summer but with the stock f/a i run 122.5 low and 165 main with i think the gold spring, might be silver. when i run a fly f/a i move up to a 180 main. runs great. ski will turn around 6700 with the fly and about 6450/6500 with the stock box. thats about all she has in her. good luck

 

[Cliff]

if wedo cant help you with jets, gordon at pacific jet sports always has them in stock. like wedo said, theyre cheap

 

[WFO Speedracer]

Wedo can help with the jets ,all he needs is an ok and to send payment with a SASE.I can handle it from there.