re-jetting

[serento]

So,on my 09' raptor 350 I have it fully modifyed and currently running a 157.5 main jet. The bike is stalling out alot after, 30 mins of riding. So now i have purchased 4 more jetts( 160,162.5,165,167.5). Also, I'm running 111 race fuel. Can any one please let me know which one of these 4 jetts i need to use?
Thank you for your info and time.

 

[DeadLastRacing]

why the race fuel? Do you need it? What is your mod list? How does it run for the first 30mins of ridding?

 

[1998yamahawarrior]

why the race fuel? Do you need it? What is your mod list? How does it run for the first 30mins of ridding?

^^:iagree:

 

[serento]

12.5-1 je piston,hot cam stage 2 hot cam,kibblewhite values and spring kit, dynatek cdi,k&n with no box lid, oil cooler, full yosh. Exshuat. I run 111 cause I get it dirt cheap. Its like its not getting enuogh fuel thats why im going up a few sizes on my main jet also

 

[DeadLastRacing]

Eghhh, that makes sense now. What does your plug look like? I was gunna suggest it was lean from the get go but didn't know you have a cool warrior.