Do your FCR 39's floatbowls run out of gas on wheelies?

[Sparky416ex]

I just got an FCR39 and it seems to stumble while in a wheelie, we are also having trouble jetting the 416...to see engine mods look below

Should i check my float bowl level?

I need jetting recomendations....either i cant get this thing jetted or its just a piece of crap because the stock ran better with a dyno jet kit...


the carb parts warehouse shipped the carb with a 50 slow and a 168 main and the clip was on the 3rd notch down....what to do what to do?


thanks a lot

[twisted threads]

Thats funny but I am haveing the same problem with mine. What I tried to do is open up the fuel delivery screw more and see what happens. Its at the bottom of the carb. Mine was only opened 1 1/2 turns now it is 4 turns out. I think I have a 175 main jet and a 48 piliot jet(i think:ermm: )

[Sparky416ex]

i think mine was open 2 and a half

[Silverfox@C&DRacing]

I would try a 170 main 52 pilot needle in the middle clip air screw 2 1/2 and the air jet in the back of the carb 2 turns out.

[Sparky416ex]

Originally posted by Silverfox@C&DRacing
I would try a 170 main 52 pilot needle in the middle clip air screw 2 1/2 and the air jet in the back of the carb 2 turns out.

thanks ,,,,ill try it

[JDsBusa]

I just got my FCR this past friday.I love it, but I have been trying
figure out why mine stumbles when riding wheelies...
Did anything help w/ your setup?
Justin

[twisted threads]

NOPE nothing worked for me mine still does it and Im very POed about it. DID your carb come with over flow drain tubes?? Because mine didn't so I made my own and Im thinking mabe it might be a vacume problem?? Im very confused about the whole thing. I even went down to a 50 pilot to see if that made my bike run better. It didn't run better but it didn't run worse.......:confused2

[sparky450AR]

hey guys i used to be sparky416....my dad broke his collar bone trying to fix that POS carb that everybody uses but doesnt know **** about....the 416 is pretty racked up broken fenders bent lonestar chrome antivibe steering stem, SE renthals, it looks bad....i would post a pic but im not in the mood of uploading it to some other confusing site then getting the url link and coming back here and posting it...see you guys later

[twisted threads]

When you guys bought your FCR carb did it come with the overflow drain tubes??

[HOT-ROD]

Originally posted by twisted threads
When you guys bought your FCR carb did it come with the overflow drain tubes??
mine did'nt come with tubes either .
does it stumble while your not in a wheelie ?

see thats what i said, and everyone told me i was crazy when i siad i thought the stock carb ran the best

[twisted threads]

Originally posted by HOT-ROD
does it stumble while your not in a wheelie ?

Nope not at all. The bike runs awsome untill you try to do slow wheelies. If you do wheelies like in 3rd gear and give it gas the bike will run fine. Its very strange:confused:

[twisted threads]

Originally posted by JDsBusa
I just got my FCR this past friday.I love it, but I have been trying
figure out why mine stumbles when riding wheelies...
Did anything help w/ your setup?
Justin
SO did you find any thing out??