RATTLE OR POSSIBLE PING NOISE?
08-27-2007, 07:15 PM
#1
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Squid
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Join Date: Jun 2007
Posts: 17
RATTLE OR POSSIBLE PING NOISE?
Hello, this is my first post.
I know it's hard to diagnose a noise by someones description but I'll try anyways. I have a 98SH that I just purchased. It has 60k miles on it and had a failing rear ctt. I replaced both and had also set valve clearance to spec. with carb sync; while apart. My questions are: is it normal to have what I feel is detonation/pre-ignition rattle at take off from a stop. I did also set the tps sensor from 865ohm's to 510ohm's and filled the tank with super unleaded with no change. the noise sounds kind of metalic but. I am wondering if it might be the carb. slides? I can't hear any noise while wrapping the throttle at all. It's only under load or initial take off. Thanks.
I know it's hard to diagnose a noise by someones description but I'll try anyways. I have a 98SH that I just purchased. It has 60k miles on it and had a failing rear ctt. I replaced both and had also set valve clearance to spec. with carb sync; while apart. My questions are: is it normal to have what I feel is detonation/pre-ignition rattle at take off from a stop. I did also set the tps sensor from 865ohm's to 510ohm's and filled the tank with super unleaded with no change. the noise sounds kind of metalic but. I am wondering if it might be the carb. slides? I can't hear any noise while wrapping the throttle at all. It's only under load or initial take off. Thanks.
rattle
03-11-2008, 07:14 PM
#4
Junior Member
Squid
Join Date: Dec 2007
Posts: 5
I have a similar sound I only hear it when coming to a stop or when waiting at red lights. It goes away when I accelerate. Sounds kind of like an metallic shocking or ticking coming from the front of the bike. It Doesn't happen when cold only after completely warmed up. I just purchased the bike and it has APE CCt's. Its a 99 with 25k miles. Could it be carb slides rattling??
03-11-2008, 08:35 PM
#5
WERA #44
Superstock
Join Date: Jul 2007
Location: About 57 miles south of VIR
Posts: 265
Ditto on the take off rattle, If it aint carb slides, something is gonna go KaBang someday. Mine is jam-up and jelly-tight with the CCT's, valve lash, ETC and only has about 14k miles on it. The noise startled me at first, but it's just Hawkiness.
03-11-2008, 09:37 PM
#6
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Join Date: Dec 2004
Location: Fulton, MO
Posts: 105,287
I have a similar sound I only hear it when coming to a stop or when waiting at red lights. It goes away when I accelerate. Sounds kind of like an metallic shocking or ticking coming from the front of the bike. It Doesn't happen when cold only after completely warmed up. I just purchased the bike and it has APE CCt's. Its a 99 with 25k miles. Could it be carb slides rattling??
Carb slides generally only rattle off idle at low throttle openings.
03-12-2008, 02:00 PM
#7
Senior Member
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Join Date: Jan 2008
Posts: 104
+1 on the "whirring" sound. Mine sounds like a roots type blower while idleing.
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