I put a 48 pilot in today and got the air/fuel screw adjusted n sync w/ the bigger jet and its as crisp as can be off idle. Even when it was on the stand, I was surprised. I have an adjustable needle I'm gonna put in next chance I get, (7 positions, NVTS or something like that) and that should round off my jetting!!
I still have a bog/hesitaion around 1/8 throttle...
Started by GoonSquadCRFx, Jan 08 2012 09:32 AM
32 replies to this topic
Posted 29 January 2012 - 07:15 PM
I put a 48 pilot in today and got the air/fuel screw adjusted n sync w/ the bigger jet and its as crisp as can be off idle. Even when it was on the stand, I was surprised. I have an adjustable needle I'm gonna put in next chance I get, (7 positions, NVTS or something like that) and that should round off my jetting!!
Posted 31 January 2012 - 10:12 PM
I believe most people start messing with A.P. before getting jetting(pilot ,main,and clip)fully sorted. Glad you got it worked out!
Posted 01 February 2012 - 06:15 AM
Yea thanks. Im surprised it needed a 48p, but it did and now its super crisp!! Cant wait to ride it sat. Ive got my air/fuel screw 2 turns out. If I turn it a quater turn one way or the other it stalls out. The jetting seems to be right on the edge, but perfect. It does have a little hangin idle, just a hair when its on the stand. Thats the leak jet right? A 50leak will take care of that? What excatly is the leak jets function?
Posted 01 February 2012 - 12:15 PM
Before you change the leak jet, try backing off the fuel screw another 1/8 to 1/4 turn. Idle the bike up a little to keep it running.
Posted 01 February 2012 - 03:56 PM
Cool thanks, I'll try that! Why does alot of people recommend a 50 leak for the 250x. What comes tock, do you know?
Posted 01 February 2012 - 08:43 PM
GoonSquadRMZ450, on 01 February 2012 - 03:56 PM, said:
Cool thanks, I'll try that! Why does alot of people recommend a 50 leak for the 250x. What comes tock, do you know?
Leak controls the percentage of fuel that returns to the bowl. The smaller the number the larger the percentage. Stock is 55. That
means 45% of the fuel returns to the bowl. If you can find a 50 for that carb it will return 5% more.
Posted 02 February 2012 - 01:30 PM
I forgot to tell you:A hanging idle is useually a lean condition. Check for intake leaks between carb and cylinder.
Posted 02 February 2012 - 06:33 PM
Probaby when I put my carb/air boot back together. It was such a pain and I couldn't really see the back of it. It appeared to be sealed but I'll check that. Thanks.
Posted 02 February 2012 - 06:51 PM
One other thing, hang on to your 42 and 45 pilot,you will need one or the other come summer.
. My GoonSquadrmz450 Jet kit was only $9!!! Haha 
