Fast Idle Adjustment

[Chieftan]

Never mind. Finally found the relevant thread to solve the problem. This group is great.
Recently purchased a 2005 Busa. The idle was set to about 900 rpm by the previous owner (wanted the bike to sound a little like a Harley I guess).

I have reset the idle to about 1300 rpm per the manual (1050-1250) but the fast idle, which should read around 2000 rpm when engaged, cranks the bike to the same as normal idle--about 1300 rpm.

Is there a separate adjustment for the fast idle as compared to adjusting the idle screw for normal idle? A second circuit perhaps? Any help would be appreciated.

 

[dadofthree]

Yes, but the RPMs vary depending on all those factors. How cold/hot is the bike, weather, etc. Mike will be along soon to help

 

[dadofthree]

https://www.hayabusa.org/forum/maintenance-do-yourself/24284-permanent-shop-manual-hosting.html

 

[mike1180]

Hey Chiefan.
Welcome!



Here is the instructions you need.
Good Luck!

 

[dadofthree]

How's that for help


Thanks,

Mike

 

[wardie]

Just how cool is this site? Ask and you receive!! Wardie

 

[twotonevert]

I love the oRg!

 

[djsin]

thankyou for calling it a fast idle adjustment

 

[SKnight]

Clean the carbon out of the throttle bodies, that'll most likely fix it right up. You'll have to reset your base idle, but that's easy enough.

 

[mike1180]

thankyou for calling it a fast idle adjustment

I would CHOKE if I called it anything else.

 

[BA BUSA]

Never mind. Finally found the relevant thread to solve the problem. This group is great.
Recently purchased a 2005 Busa. The idle was set to about 900 rpm by the previous owner (wanted the bike to sound a little like a Harley I guess).

I have reset the idle to about 1300 rpm per the manual (1050-1250) but the fast idle, which should read around 2000 rpm when engaged, cranks the bike to the same as normal idle--about 1300 rpm.

Is there a separate adjustment for the fast idle as compared to adjusting the idle screw for normal idle? A second circuit perhaps? Any help would be appreciated.

Fast idle is supposed to be set @ 3,500 rpm