CBR 600F 1987 - 1990 CBR 600F Forum

Is it normal for idle to 'flutter'?

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Old Sep 6, 2009 | 08:08 AM
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Exclamation Is it normal for idle to 'flutter'?

I've gotten alot of the kinks worked out on the bike so far, but cannot seem to get around this one. when I set my idle to 1200 rpm it will flutter from 1000 to 1500 or so. I'm sure a good carb sync would do wonders, but I was just wondering if this is normal with an older bike.

Next projects include: checking the cct (I'm hearing the ticking that is talked about in the forum), and checking my thermosensor. Hopefully I'm not in too deep on these ones - I am certainly no mechanic - but I really enjoy doing my own work on the bike.
 
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Old Sep 6, 2009 | 08:51 AM
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The "flutter" is usually the result of needing a carb sync or valve adjustment. I would say it is kind of normal because most could use a carb sync or valve adjustment. THis applies to most multi-carbed bikes.

KongBastard
 
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Old Sep 6, 2009 | 08:57 AM
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Originally Posted by KongBastard
The "flutter" is usually the result of needing a carb sync or valve adjustment. I would say it is kind of normal because most could use a carb sync or valve adjustment. THis applies to most multi-carbed bikes.

KongBastard
I'm hoping it's teh carb sync... a valve adjustment might be over my head. lol
 
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Old Sep 6, 2009 | 10:55 AM
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My engine started ticking, and the idle fluctuating, after I improperly installed a header and the exhaust started leaking at the manifold.
 
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Old Sep 6, 2009 | 08:53 PM
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Originally Posted by Red_Eye
My engine started ticking, and the idle fluctuating, after I improperly installed a header and the exhaust started leaking at the manifold.
Were you able to get it resolved Red_Eye?
 
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Old Sep 6, 2009 | 09:47 PM
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I'm sure new gaskets will fix it, but that won't happen until spring. Tomorrow the old girl will be retired early for the season and prepared for a complete teardown and rebirth as a badass streetfighter over the winter.
 
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Old Sep 6, 2009 | 10:05 PM
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Originally Posted by Red_Eye
I'm sure new gaskets will fix it, but that won't happen until spring. Tomorrow the old girl will be retired early for the season and prepared for a complete teardown and rebirth as a badass streetfighter over the winter.
Make sure to post pics! I'm going to do a teardown as well and not too sure of the mods I'm going to do. My plastics are in really rough condition so I might do one or more of the following;

600RR tail section swap
digital guages
Plastic weld lowers and mid panels
Repaint (Not sure of scheme yet) - but probably to match my icon eternal saint helmet.
 
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Old Sep 7, 2009 | 01:50 AM
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My plans so far:

- new tire front and rear (ordered)
- remove what's left of the stock plastics (and ebay those suckers lol)
- '03-'04 600RR tail swap (got the seat and little side panels ordered already)
- this belly pan (ordered)

- this headlight/fairing:

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- paint exhaust with Techline Black Satin 2000 degree header paint
- repaint engine black
- remove stock gauges from fairing mounted panel and make new fork mounted panel for them, perhaps do some funky new turn signal indicators
- paint or powdercoat wheels and frame black
- paint tank and plastics some wild candy, pearl, or chameleon colour
- chop the passenger pegs and mounts (using the solo rear seat cowl), hack off the unnecessary parts of the subframe and fab new mounts for the tail and exhaust
- new chain and sprockets

And since I'll have the engine out to do the paint, I'll clean the carbs and install a new CCT, and do whatever else needs done. That should keep me busy until spring I'll be starting a project log over on customfighters.com when I get going.
 
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Old Sep 7, 2009 | 01:06 PM
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I like the Rogue fairing. I think you will have to get different gauges ( http://trailtech.net/vapor.html ) as the stock ones are a single assembly not individual gauges.

Post pics along the way.

KongBastard
 
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Old Sep 7, 2009 | 01:57 PM
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New gauges are always an option . . . but if I can't get the stock ones out of that plastic pod and make a new panel and bezels, I'll turn in my Dremel
 
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