my f4i does the same thing....i've changed everything...except sync the throttle bodies.

 

Sync them, it'll fix it.

 

do you know how much this usually cost?

 

What exactly does sync'ing do and where can I get it done?

 

sync throttle bodies????
dosnt your cpu and map sensor do that..... i mean thats what its for??? right???

what exactly are you syncing?????? are there air jets in the injectors??
i am not understanding this tb sync at all... i get carb sync!! !

 

http://www.r6messagenet.com/forums/s...ad.php?t=21751

this will give you an idea of what it is thats being done. it may be a little different for your particular bike, but this is what will be done if you take it to a dealer.

 

im gonna talk to the shop thats right down the road here and talk to a shop that one of my buddies knows a guy and i will see how much that is to do, also im prolly gonna fork over the money for them expensive plugs too

 

you wont regret it. they are more expensive for a reason, they are better! if they tell you 7 to 10$ per plug tell them thats the wrong one. you want iridium (sp) plugs. :YEAH

 

yep, what he said

 

my bikes only got 7500 miles on it does it really need plugs you think? or just the throttle bodies synced

 

I'd do both.

 

aight ill grab some today and ask for a quote on the sync when im up at tousey motorsports, aaron colton has a show there anyways tonight

 

make sure your battery cables are tight, happened to my f4i twice

 

ok ill check that too, but wouldnt it die out totally sometimes if they werent tight?

 

MY VOLTAGE REGULATOR WENT BAD AND I HAD THE SAME PROBLEM, WHEN IT GOT WORSE THE BIKE WOULD ALMOST DIE THEN SHOOT UP TO 3K IDLE, SWAPT THE RECTIFIER AND IT WAS FINE! MY BATTERY ALMOST BLEW UP TOO!