i would just like to know what i have to do to the carbs to keep the bike running at the bp or idle i have searched the forum and found nothing, but i would like to know what i need to do to my carbs on my 900rr to keep it running at 12 i clutch it up and can only ride idle for about maybe 5 to 10 sec or about 30 foot. i know that something can be done just dont know what so any help would be apprecated. thanks

i have an f4i also so dont want to here go and buy you an fi bike just really like the old school 9 for the streets and plus its really been through hell and still tickkin kinda sintamental

 

it seems that all the old school stunt riders in here some one would be able to help i mean is this a big secret that no one wans to give up. i tried to email tony d when scott at stunnters.com told me that he could help and still nothing i guess i just need to start messing with my floats and try a little t and e. if any one has any suggestions like i said it would be appreciated

 

or is this just a dumb*** post

 

id try adjusting the carbs and floats in side if the floats are off itll flood and die.

 

I don't know what to tell you I have a f4 carb and it's all stock and I 12 slow on it I do have the idle up to 4500 or 5000 because of the stock gearing the only thing is that it floods on endos that **** for me

 

so maybe i need to try and get a new float needle and seat.
the bike will idle fine its just when it is up if i go to recover from say hitting the brake to hard or just losing the bp when i go to get back on the gas it wont take it for a sec and then it does almost like it is skippin from no gas not bogging like it is flooded

 

ive seen guys just turn up the idle enuf that it doest stall

 

Never messed with 9 but f2/3/f4s don't have adjustable float levels, so there's nothing to get out of adjustment. Pretty sure the 9 is unadjustable as well. Most likely you either have a worn out float valve that's flooding it or you got some dirt in there that's not letting seat or open right and it's either flooding or starving it. Another thing could be your pump too. It could have went bad but open so it's still getting gravity fed until you go to 12 then you got no gravity feed or pump.

Either way check make sure the pump is pumping, then pop the bowls off the carbs and make sure all is well in there. All the floats should be moving freely and resting at the same level. If one or more are not quite right you have a problem.

12's shouldn't be a problem and all mine don't have any problems. The endos are the trouble for carbs cause all the fuel sloshes forward then the valves open up and it starts filling the carbs. When you set it down they're flooding it out.

Good luck.

 

A few of my riders ride 900RR's and they do 12bar trick.. They dont flood out at all.