03 Busa with crapy Idle

[chat_vmax]

I have 3500 miles on my 03 Busa,
I have the idle set to 1k ,,

With Bike warmed up and no choke,,, the tack drifts between 800 and 1k, relativly rough idle,,

and rarely if i come to a really fast stop,, or back off it quick and just coast it will stall,,, but thats real rare.....
it used to idle like a clock,,

Ive tried just 97 oct gas for about 2 weeks now,, about 3 full tanks,, still has issue,,,

any ideas..?

any help appreciated??

 

[Aquaman]

you should be idling at 1050- 1100 IMO

 

[riironman]

bring the idle up to 1250...that seems to be perfect idle for these machines.

 

[VaBusa]

I too have issues with the idle setting on my '03, but it's easy enough to adjust...just a screw on the brake side under the fairing...a guy adjusted mine by pulling the fairing back (no removal) and used a long screwdriver.

I'd reset it up around 1200...reminds me, I need to reset mine too...

 

[Juggler]

Sync the throttle-bodies?

 

[chat_vmax]

(Juggler @ Sep. 26 2006,15) Sync the throttle-bodies?

is there a post explaining the procedure for throttle body sync...???

 

[BusaWhipped]

(VaBusa @ Sep. 26 2006,11:47) I too have issues with the idle setting on my '03, but it's easy enough to adjust...just a screw on the brake side under the fairing...a guy adjusted mine by pulling the fairing back (no removal) and used a long screwdriver.

I'd reset it up around 1200...reminds me, I need to reset mine too...

You don't even need to pull the fairing back.  you can get to the idle screw through the gap between the inner fairing and the tank.  LABusa did mine in Eureka Springs at the Meet and Greet.  

When was the last time you had your throttle bodies synced?

 

[chat_vmax]

When was the last time you had your throttle bodies synced? [/Quote]


is there a procedure posted ?? I never had them done,, i have 3500 miles....

 

[MC MUSTANG]

Bring your idle up to around 1150 and see how she runs... Throttlebody sync is usually done around 7500, you might need it now, but you'll need to adjust your idle as part of the procedure anyway, so you should do that first and see how that affects the bike...

 

[Haelo]

+1 on 1150-1250 idle.

 

[chat_vmax]

ill do that...BUT now you guys got me curious,,, is there any posts on Throttle body sync procedures,, tools / ??

 

[MC MUSTANG]

There are several, but go for the simple fixes first...






Okay, that should get you started...

 

[CorrodedAlien]

it's the idle setting... they drift

set it while warm to 1200 or so and use something on the threads to keep them from drifting. Mine did it until enough general slime gooed up the threads. If you are super anal about keeping it clean, use the weakest thread lock (Loctite) there is.