03 Low idle on startup. No Choke??

RR.Bran · Jun 5, 2015

Hi. I have an 03 I bought used. Since ive had it, it starts fine but the idle is very low. I know its FI so I thought the choke was handled by the ECM. I dont know what would cause this. Basically starts up and runs the hot idle (under 900RPM). It stays runing but its really rough. If I add a little throttle it revs up and smooths out but as soon as i let go it goes back to a low rough idle until it gets to operating temp and everything is normal. Im gonna take a video but i didnt have time today. Thanks in advance.

Untamed Entity · Jun 5, 2015

Small black knob on left side under gas tank. Idle control. At least on the 05-06 there is. Unsure about the 03-04.

RR.Bran · Jun 5, 2015

I have played with the idle adjustment. The problem is the idle is set correctly for when the bike warms up. My issue is that the cold startup idle is very low. Adjusting the idle up at startup would make it way too high when the bike comes up to operating temp.... I did try that though :banghead:

RR.Bran · Jun 5, 2015

Heres a cold startup video I just took..
https://youtu.be/Dcl_N_5pJYg

RR.Bran · Jun 6, 2015

No one know how to fix this??

Oilhead · Jun 6, 2015

RR.Bran said:
HBasically starts up and runs the hot idle (under 900RPM)

Are you saying the hot idle is set to 900 RPM? If so, it is too low. The hot idle should be set to 1300 RPM.

RR.Bran · Jun 9, 2015

My tach is actually broken. I got the "900RPM" figure from when I wes researching this issue. My hot idle is set correctly I just cant tell what the actual rpms are.

The bike runs and idles great after temp comes up to 180. This is not an idle issue. For some reason the choke on cold start is not being initiated. Cat for the life of me figure out why.. ECU maybe?

03 Low idle on startup. No Choke??

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