Throttle Not Returning To Idle On Its Own

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Apr 25, 2012 | 08:30 PM

Jamc9103

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Throttle Not Returning To Idle On Its Own

Hey, I have a 1987 CBR 600F and im having a small issue with my throttle
My bike idles at around 1200-1500.
However when it warms up and i come to a stop in any gear it will come back down to around 2000-2300 rpms and I have to slightly twist the throttle the opposite(as in towards the brake lever) to get it all the way down to 1300 again and then I can let go and it will idle smoothly.

This isnt a huge problem but it gets kind of annoying at times.
I have tried loosening the cable but it didnt really help.

Apr 25, 2012 | 08:54 PM

justasquid

Senior Member

Joined: Apr 2008

Posts: 2,492

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From: Northern Michigan

Loosen the clamp that your throttle attaches too. Sometimes, the rubber from the throttle grip will get pushed into the housing and create drag. Loose it up and pull it away from the grip, then retighten. Thats the first thing I would check anyway.

Beyond that, it could be a weak throttle return spring on your rack.

Apr 25, 2012 | 09:19 PM

That Guy in Maine

Senior Member

Joined: Nov 2011

Posts: 264

Likes: 0

I know mine stuck and didn't move at all when the clip on was bent, any way it could have been slightly bent so that it sticks with less pressure on it?

If not that, try lubricating the plastic throttle tube that is on the clip on itself.

and justasquid also has a good idea.

Good luck!

Apr 26, 2012 | 02:20 AM

CJardine

Track junkie & modaholic

Joined: Aug 2011

Posts: 1,847

Likes: 2

From: USA

I would first make sure my throttle cables were routed correctly I know that on my bike if they are even twisted once, my throttle wont budge by itself.

Apr 26, 2012 | 01:14 PM

gotcbr

Senior Member

Joined: Apr 2009

Posts: 6,494

Likes: 5

Quote:

Originally Posted by justasquid

... Sometimes, the rubber from the throttle grip will get pushed into the housing and create drag. Loose it up and pull it away from the grip, then retighten. Thats the first thing I would check anyway...

That's the first thing I do when I get my bike off the trailer at the track. ;-) I use the old model canyon-dancers. They're great for strapping & securing the bikes to the trailer but the throttle side grip can easily wedge up against the housing if it has the opportunity. A slight adjustment usually corrects it. The new style canyon-dancer eliminates this w/a hard rubber cup that mounts over the end of the clip-on/grip. Canyon Dancer Inc.