David Jenkins
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| posted on 3/4/09 at 07:28 PM |
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Chirpy chirpy cheep cheep
When I floor the accelerator I get a couple of seconds of a chirping noise from the carbs - any ideas?
1660cc X-flow, roughly 100 BHP
CBR600FX carbs
Home-made airbox/filter
Home-made manifold
Genuine Honda rubber couplers between carbs and manifold
Everything's running well - just wondering it should happen, or if something needs fixing!
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Paul TigerB6
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| posted on 3/4/09 at 07:30 PM |
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Is it more "budgie" or "sparrow"?? 
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Thinking about it
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| posted on 3/4/09 at 07:59 PM |
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Feather the throttle
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rusty nuts
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| posted on 3/4/09 at 08:09 PM |
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Where's your mother gone?? Chirpy chirpy cheep cheep
For those of you not old enough it was a song in the late sixties /early seventies by Middle of the road IIRC. Not a lot of help David I know.
Possible sharp edge on the air box?
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maximill666
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| posted on 3/4/09 at 08:18 PM |
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quote:
Originally posted by Thinking about it
Feather the throttle
Brilliant
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stevebubs
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| posted on 3/4/09 at 08:38 PM |
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It's fine - just the sudden influx of air at an angle (try blowing across the top of a bottle).
I wish I could hear mine chirping!
[Edited on 3/4/09 by stevebubs]
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David Jenkins
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| posted on 3/4/09 at 08:47 PM |
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It does get drowned out by the snarl of the air going into the carbs...
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tul214
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| posted on 3/4/09 at 08:57 PM |
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Inlet gasket is acting as a reed....you have a leak!
1.6 Raw Super6 sold
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RichardK
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| posted on 3/4/09 at 09:06 PM |
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You've got me wondering know, I've noticed a slight noise like a cheep cheep on mine when I floor it and I kind of thought the fan belt
was slipping or alternator bearing was a bit noisy although on the other hand the belt is defo tight enough. Could be the same!
You've got me curious now!!!
Cheers
Rich
Gallery updated 11/01/2011
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ditchlewis
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| posted on 4/4/09 at 07:43 AM |
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As richard K i thought it was just the fan belt of thrust bearing.. it only happens when blipping the throttle at low rpm.
now i'm realy confused
ditch
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stevegough
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| posted on 4/4/09 at 08:09 AM |
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Some years ago I had some problems with a Datsun I had - yes, a Datsun (for all you younger whippersnappers, they changed their name to Nissan in the
'70s).
The car was ok until you got a few revs on - then it coughed and spluttered, and basically said it wasn't going to go any faster.
After much rooting round under the bonnet, I eventually found the culprit - a complete DEAD BIRD wedged in the inlet pipe of the air cleaner!!!
Er - not that this is very relevant to your problem I know........
Luego Locost C20XE.
Build start: October 6th 2008.
IVA passed Jan 28th 2011.
First drive Feb 10th 2011.
First show: Stoneleigh 1st/2nd May 2011.
'Used up' first engine may 3rd 2011!
Back on the road with 2nd engine may 24th
First PASA mad drive 26/7/11
Sold to Mike in Methyr Tydvil 19/03/14
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tul214
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| posted on 4/4/09 at 12:21 PM |
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I have the same after making my own inlet manifold. It must have a very small warp in it that is not taken up by the inlet gasket. If I put my finger
on the area I can feel the vibration and the noise stops.
I am going to try another gasket and nip it up again.
HTH
1.6 Raw Super6 sold
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