Rev too high at startup and idling at 1500 ??

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Rev too high at startup and idling at 1500 ??

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CBR Forums >> Current Honda CBR Models >> CBR 600F4i >> Rev too high at startup and idling at 1500 ??

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Rev too high at startup and idling at 1500 ?? - 5/10/2008 7:41:39 PM

jly2k

Posts: 4
Joined: 5/10/2008
Status: offline

When I start the bike, the tach goes to around 3500, then it slowly goes back down to 1500. Is something wrong with my idle or is this the norm with these F4i bikes?

Does anyone know how to fix this?

2004 CBR600 F4i with 6400 miles.

Post #: 1

RE: Rev too high at startup and idling at 1500 ?? - 5/10/2008 7:46:58 PM

Kevin48

Posts: 109
Joined: 3/24/2008
Status: offline

yeah its high. I idle at about 1600- 1700 when its cold and at about 1100 rpm idle when its warm. All you need to do is just adjust the idle a little, its not hard to do but it would take me a while to try and type an explanation. Someone has to have a pic to show.

(in reply to jly2k)

Post #: 2

RE: Rev too high at startup and idling at 1500 ?? - 5/10/2008 9:03:54 PM

Aken

Posts: 655
Joined: 10/12/2007
Status: online

During the winter if my bike hasn't ran in a few weeks, it'll idle around 2.5-3k right at start up, and slowly go down. Couldn't tell you exactly what it does when I use it everyday, as I haven't been able to yet.

(in reply to Kevin48)

Post #: 3

RE: Rev too high at startup and idling at 1500 ?? - 5/10/2008 9:13:05 PM

white99gt

Posts: 461
Joined: 8/25/2007
From: stockbridge,ga
Status: offline

Depends on the temps when its started. 3500 doesnt sound bad for a second or two on startup.1500 is a tad high ,mine has always been 1300 since new.
If its real cold outside mine will high idle for a few seconds.But most of the time its in the garage and usually doesnt see over 2k at start up.

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06 cbr600 f4i
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(in reply to Aken)

Post #: 4

RE: Rev too high at startup and idling at 1500 ?? - 5/10/2008 9:22:04 PM

amnesia

Posts: 169
Joined: 6/4/2006
Status: offline

It's perfectly normal!

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red/silver '05 F4i
Akarapovic slip on; Vortex sliders; mirror extenders
Rich's custom leather seat; Scorpio alarm
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Whistler Cruisader radar detector

(in reply to white99gt)

Post #: 5

RE: Rev too high at startup and idling at 1500 ?? - 5/10/2008 11:56:47 PM

FLYOU

Posts: 964
Joined: 7/13/2007
From: Columbus, OH
Status: offline

quote:

ORIGINAL: amnesia

It's perfectly normal!

+1

there's high idle mode and low-idle mode. Low idle doesn't kick in until the temp gets to around 100-103 or so. same with cars. 1500 is fine, but if you want to adjust it, you can.

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(in reply to amnesia)

Post #: 6

RE: Rev too high at startup and idling at 1500 ?? - 5/11/2008 1:11:57 AM

mike

Posts: 9
Joined: 8/23/2006
Status: offline

dude at least ya got feed back.. these people wont even respond...

(in reply to jly2k)

Post #: 7

RE: Rev too high at startup and idling at 1500 ?? - 5/11/2008 8:53:02 AM

Mustangred

Posts: 49
Joined: 3/31/2008
Status: offline

It does sound normal..mine does the exact same thing but might idle just a hair bit lower.

(in reply to mike)

Post #: 8

RE: Rev too high at startup and idling at 1500 ?? - 5/11/2008 4:43:28 PM

Goose Rider

Posts: 142
Joined: 10/11/2007
Status: offline

I noticed tonight that I'm idling tight around 1500-1600 at a stop even after running for about 1/2 hour...is this ok? Maybe It has been that way since I got it and maybe this thread just made me concious of it..hmmmmmmmmmm...had an inspection sticker put on this past weekend...the techs don't do anything with the idle during an inspection do they lol

Goose

< Message edited by Goose Rider -- 5/11/2008 4:51:36 PM >

(in reply to Mustangred)

Post #: 9

RE: Rev too high at startup and idling at 1500 ?? - 5/11/2008 4:48:16 PM

amnesia

Posts: 169
Joined: 6/4/2006
Status: offline

Just wait till the engine is nice and warmed up and adjust the idle speed knob for 1300 RPM. Piece of cake.

_____________________________

red/silver '05 F4i
Akarapovic slip on; Vortex sliders; mirror extenders
Rich's custom leather seat; Scorpio alarm
Kisan pathBlazer headlight modulator
Whistler Cruisader radar detector

(in reply to Goose Rider)

Post #: 10