Strange knocking noise in transmission - Wrist Twisters
 
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post #1 of 19 Old 04-15-2010, 05:24 PM Thread Starter
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Strange knocking noise in transmission

It sounds like something is smacking against the case when I roll the bike real slow. It's pretty loud and doesn't matter if the engine is running or not. I loosened the chain up and it didn't change at all. I'm Hoping I don't have to disassemble the engine because it just got nice out! Anyone have an idea on what it is or did anyone have this problem?

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post #2 of 19 Old 04-15-2010, 05:44 PM
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take you chain off and see

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post #3 of 19 Old 04-15-2010, 06:17 PM
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Quote:
Originally Posted by zaq123 View Post
take you chain off and see
Yep. If it is really that bad eliminate the chain. But I would look elsewhere first.

I'll bet you'll find it's the chain, sprockets are worn, bunch of gunk inside the front sprocket cover, etc. Transmission would be the last place I'd look, especially since the tranny isn't much in play when the bike is in neutral and you're rolling it.

"Towards the end of the vid, it looks like she may have had a bafflectomy." - MarylandMike
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post #4 of 19 Old 04-15-2010, 06:36 PM Thread Starter
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That's what I was hoping but I already have the chain off and it's still there! Clutch in or out doesn't matter either.

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post #5 of 19 Old 04-15-2010, 06:43 PM
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ooh, that sounds ugly. I wish I had a suggestion for you...with the chain removed, I can't think of a thing to try.

Well, fire the engines! Spur this iron space-pony on!

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post #6 of 19 Old 04-15-2010, 06:47 PM
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Quote:
Originally Posted by blue smoke View Post
That's what I was hoping but I already have the chain off and it's still there! Clutch in or out doesn't matter either.
If it does it with the chain off, then wouldn't that eliminate anything in the engine or transmission if you are just rolling the bike?

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post #7 of 19 Old 04-15-2010, 06:49 PM
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If you have the chain off then the tranny isn't even turning when you roll the bike. It's in the rear or front wheel.

EDIT: Mike beat me to it. Your problem is elsewhere.

"Towards the end of the vid, it looks like she may have had a bafflectomy." - MarylandMike
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post #8 of 19 Old 04-15-2010, 06:55 PM
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Hey blue, we need some details. Chain off and rolling the bike with engine stopped or on? If stopped, look for brake caliper/wheel bearing issues.

Chain off but engine running? That's another story.

"Towards the end of the vid, it looks like she may have had a bafflectomy." - MarylandMike
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post #9 of 19 Old 04-15-2010, 06:59 PM
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Stone inside the hollow wheel center?

The only thing moving with the chain off is the wheels, right? When you say the chain is off, is it totally off? Or did you just remove the front sprocket?

If the chain is totally off, jack up the front, turn the wheel. Same for the back. Has to be something associated with a wheel.

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post #10 of 19 Old 04-15-2010, 08:22 PM
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The bike is turned off.
The chain is OFF the bike.
The bike is in neutral.
You push the bike alongside you at 1mph... do you still hear it?

Knocking sound... ... that's *edit* not the wheel bearings...

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post #11 of 19 Old 04-15-2010, 08:35 PM
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I like CGs suggestion. There is that mold hole in the hub of the wheels that's just fascinating enough for small children to put things in when a rider isn't looking.

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post #12 of 19 Old 04-16-2010, 06:21 PM
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What's the verdict?????????????

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post #13 of 19 Old 04-16-2010, 08:10 PM Thread Starter
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Yep it was some crud in the spokes! Thanks for the input guys but in the process of finding out what it was my bike rolled off the sidestand and put a big dent in the gas tank! One insignificant problem turned into a ugly looking one.

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post #14 of 19 Old 04-16-2010, 08:16 PM
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Quote:
Originally Posted by blue smoke View Post
In the process of finding out what it was my bike rolled off the sidestand and put a big dent in the gas tank!
That just sucks.....Now you've got a great excuse to do that custom color...

That'll work........
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post #15 of 19 Old 04-16-2010, 08:16 PM
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That sucks!

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post #16 of 19 Old 04-16-2010, 09:40 PM
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Honestly dude that's the kind of stuff that happens to me all the time.
:/

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post #17 of 19 Old 04-17-2010, 05:43 AM
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Doh ! but hey. it aint a tranny problem!

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post #18 of 19 Old 04-17-2010, 08:38 AM
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Man, that is a mega-bummer!

The bright side is no major mechanical problem. But a dent in the tank is pretty sad.

You gonna fix it or wait a while?

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post #19 of 19 Old 04-18-2010, 10:36 AM Thread Starter
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Well I'm finally riding it again. I couldn't even look at it for the past few days! I'm going to buy a gas tank off ebay and figure out what I should paint it. Silver is too plain anyways. Any suggestions on what I should paint it? Maybe I'll put a stripe on it or a couple of those hornet decals if they're still available.

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