"Thunk!" What the #@*&? - Honda Motorcycles - FireBlades.org
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post #1 of 41 Old 12-01-2003, 9:56 PM Thread Starter
 
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"Thunk!" What the #@*&?

1350 miles on the '02. Last week I took it out and heard and felt a considerable thunk down low at my first stop. I could feel it thru the pegs. Almost like the sidestand snapped up or was loose, but it was obviously already up. Listened for it again but it didn't happen during the fifty mile ride. Next time I take it out, same thing! Always at the first stop. Pull in clutch, finger the front brake, downshift-split second later- "Thunk". Fine after that. Today it was worse. Louder thunk, and I thought I could feel and hear a secondary small thunk after shifting the next few times. Is my clutch assembly disintegrating? The weird thing is that after the initial loud thunk and vibration, the bike seems to shift smooth and normally. But something ain't right. I'm new to Blades and have searched this site for clutch problems but haven't found one that sounds like mine. Any advice would be appreciated.
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post #2 of 41 Old 12-01-2003, 10:03 PM
 
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Re: "Thunk!" What the #@*&?

Maybe check the steering head bearings. If they're really loose they will clunk when you come to a stop.

Another great site to visit.

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post #3 of 41 Old 12-01-2003, 10:08 PM Thread Starter
 
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Re: "Thunk!" What the #@*&?

CBRJack,

Yeah, I thought of that, but the movement/thunk is coming from below. I can really feel it in the footpegs.
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post #4 of 41 Old 12-01-2003, 10:39 PM
 
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Re: "Thunk!" What the #@*&?

No idea what the problem may be, but don't stress over it - that is what a warranty is for . Let "them" figure it out.

You DO still have a warranty I hope, right?
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post #5 of 41 Old 12-01-2003, 10:44 PM Thread Starter
 
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Re: "Thunk!" What the #@*&?

Bacchus,

GULP. No, It is not still under warranty. But I'm not beating myself up about that. It's just that I've come to love this bike already and now my baby has a problem. Call it parental concern. Plus I'm one of those neurotics that can't rest until everything's perfect. Guess I'll take it in the shop in the next few days and let them poke and prod. Odd that it clunks once, then seems fine. If the clunks weren't getting louder/stronger, I wouldn't worry about it at all.

Last edited by zenblader; 12-01-2003 at 10:52 PM.
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post #6 of 41 Old 12-01-2003, 11:03 PM
 
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Re: "Thunk!" What the #@*&?

If I'm understanding your post correctly, you're saying that the first couple of times you put the bike in first, it clunks, then that symptom goes away as you ride the bike more?

If that's the case - All my Hondas do that. It's pretty common, from what I've heard.
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post #7 of 41 Old 12-01-2003, 11:05 PM
 
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Umm!

Are you sure its not from the transmittion going into first gear ?

Ive got an 02 and it always makes a loud thunk into first gear.
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post #8 of 41 Old 12-01-2003, 11:09 PM
 
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Re: "Thunk!" What the #@*&?

Honda transmissions are notorious for the "clunking" in the lower gears (you just learn to live with it), but to me it is odd that this problem sorts itself out after one occurrence. Where are the mechanics on the .org?
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post #9 of 41 Old 12-02-2003, 12:24 AM
 
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Re: "Thunk!" What the #@*&?

zenblader

Are you going from neutral to first from a dead stop. If so that clunk is normal for a Honda. Both of mine have did it from day one.

You might try shifting into first while you are still moving , that should eliminate the clunk.

I look forward to corners like a dog waits for dinner…
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post #10 of 41 Old 12-02-2003, 1:29 AM Thread Starter
 
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Re: "Thunk!" What the #@*&?

Naw, I know that Honda's and BMW's tend to clunk, specially into first from Neutral. No this is different. It may not even be the clutch or tranny. It almost feels that the act of coming to an abrupt stop shifts something that is loose. It thunks once, feeling it thru the pegs, then I take off. Next stop nothing. Whatever it is, its not small. I'm wondering if it's somehow connected to the primary drive or chain.
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post #11 of 41 Old 12-02-2003, 1:34 AM
 
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Re: "Thunk!" What the #@*&?

Well I don't have a clue. Better take it to Mike at Powersports in Seaside, he will be able to tell you what's up more than likely.

I look forward to corners like a dog waits for dinner…
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post #12 of 41 Old 12-02-2003, 1:36 AM
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Re: "Thunk!" What the #@*&?

Possibly something has loosened up on the bike? Maybe check your brake calipers and front and rear axle nuts, as well as the chain and sprockets. Otherwise, it could be something internal...

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post #13 of 41 Old 12-02-2003, 1:42 AM Thread Starter
 
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Re: "Thunk!" What the #@*&?

Never,

My plan exactly. I wish I could take it in tomorrow but have a full day of work. Maybe I can get in just before closing.
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post #14 of 41 Old 12-02-2003, 2:42 AM
 
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Re: "Thunk!" What the #@*&?

We are more then curious so IF(?) you find out what caused the "clunk" I do hope you will tell us for many of us still own/ride 929s?
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post #15 of 41 Old 12-02-2003, 2:51 AM
 
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Re: "Thunk!" What the #@*&?

check all the engine mounts for tightness.
I was had loose mounts on the frame sliders and would get a hard clunk over sharp bumps.

Do unto others, before some prick does it to you!

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