2003 Busa stalling at first morning clutching

[WWJD]

I have 2003 Busa with 1070 miles on it now. most mornings when I first take off after just starting in 1st, when I clutch in ready to break for my first stop, the engine will stop or stall. I allow about a minute of choke max on start up, and then let it warm up while I inspect it and put on all my gear. Then I sit it strait up and watch the clock for another minute before taking off. Am I not allowing enough warm up time still? Seems to run fine otherwise, it's just that first stop that seems to stall it. My idle is usually 8-900ish. Is that typical. That's all the time not just warm up. I don't have a service manual yet.

Also there is this high pitched whistle sound, kinda quiet, but it's there. Been there since I bought it, hasn't changed since break in and only noticeable while standing still. Is that normal for anyone else?

 

[fatjap]

The high pitch whine is the fuel pump.

As far as warm up goes. When I bought my 2002 the shop owner said 3 minutes at least and that it was important to get it to operating temp. This was in Japan at a well known shop.

Also check the kick stand switch, it maybe loose.

FATJAP

 

[jwcfbd]

Don't know about the whistle but the idle should be around 1100rpm.

 

[WWJD]

Thanx guys for your info. So it's a NORMAL whistle sound from the fuel pump or should I have it serviced?

 

[Big O]

Definitely have the idle at 1100.

 

[MET]

Thanx guys for your info. So it's a NORMAL whistle sound from the fuel pump or should I have it serviced?

Some do and some do not. It does not hurt anything but check your fuel pump pressure next time in.

 

[busahigg]

The whistling is the fuel injectors priming.....and your idle is too low......check out your owners manual......

 

[fritch1969]

yea what the other guys said about idle it's to low,and does the whistle change pitch when flipping on brights ? my stator makes a whistling noise when cold.

 

[WWJD]

yes, revving or electrical changes like highbeam does seem to affect the whistle sound. odd.

Stalled again this morning - twice on me! After accellerating hard in second and clutching in before braking up to a stop, rpms drop all the way to ZERO. Quick clutch pop got it going again since I was rolling but, I'm not impressed. BUT, I didn't do a five minute warm up like usual this morning and should have. More like 2 minutes. Thanks again for all the advice and knowlege

 

[Stealth_Busa]

WWJD,

Soooooo, tell us what happens when you bump that idle up to 1100.


Stealth

 

[WWJD]

Will do! Turning up this weekend. I am still having the stall problems, but it HAS TO BE warm up related. It's fine after a few more minutes - oddly, wasn't a problem until after my 600 mile checkup. It's HARD to just SIT THERE on a busa for 5 minutes while warming up, but, alas, the pros outweigh the cons in a BIG way.

 

[WWJD]

Tested this AM and it works much better with the idle set right. Set the idle, solid 3-4 minute warm-up, rode normal with no stalling.

Thanks!