Topic: CLINKING sound 0-5mph?

[stueveone]

Hey, what's up gang, so I have a 750 K4

Problem: Strange clinking/clunking sound from stop untill the clutch fully engages and you hit 5mph.

Other info: The engine makes no other bizarre sounds when in nuetral or when the clutch is in, revving high sounds fine. Doesn't seem to be repeating through out the gears.

Possible Cause?: Some jerkhole cut me off forcing me to slam on my brakes and thereby locking my rear tire for a chirp. And it does seem as though the problem started shortly there after.

Anybody have any ideas?

[stueveone]

Oh, and I looked at the four nut's that hold on the rear sprocket, and there is some type of two linkage pieces of metal from one nut to its neighbor that look bent away from the hub, and not symetrically either.
Does that help any?

[cbjunkie]

can you locate the sound a little more specifically?

[Gordon]

Is your drive chain too loose and hitting the swing arm? 

[cbjunkie]

do a "wiggle check" on all your back spokes...

[stueveone]

Ok, so I did a "wiggle check" on the back spokes and found three or so that were a bit loose randomly dispersed throughout the rim. Could this cause the problem?
Also, the chain is a bit loose, but doesn't look to be slapping the swingarm any. I haven't yet tightened the chain because it's old as hell and I've ordered a new one.
Any other suggestions?

[cbjunkie]

ha!

have you cleaned the wheel really good lately? like scrubbed it and shot it with Simple Green? what condition are the spokes/rim/wheel in?

what happened to me was that i cleaned the heck out of my rear wheel and then this sound started happening...took me two weeks of mind-numbing going over and over to figure out what it was...AND noone else could hear it!

turns out the dirt was holding it together! 

it wasn't until i took the wheel off to get new rubber mounted that i figured it out... as i rolled the wheel down to my car I COULD STILL HEAR THE NOISE!! 

this may NOT be your problem, and for your sake i hope it isn't...
but if there are a few loose, the likelihood is that there are more of them in the same condition that you cannot tell by just wiggling...

[Bob Wessner]

and there is some type of two linkage pieces of metal from one nut to its neighbor that look bent away from the hub, and not symmetrically either.

Those are tongued washers as Honda calls them. The tabs are bent away from the hub to help secure and prevent the nuts from turning and loosening.

[nteek754]

My vote is  on the old chain  and depending just how old the sprockets are I would change them too bad sprockets will eat up a new chain in no time good luck  seven fifty four ever Craig in maine

[stueveone]

Thanks for all your help guys. I just got back from riding it around a little, and it seems as though it is a little speratic, there were a few times when it did not show the symptom. I think I will keep riding it gingerly with my ear peeked. I think I will as well re-check and tighten any loose spokes. I did notice that only the brake side (opposite of the sprocket) shown loose spokes.
We'll wait and see. Again, thanks for your help.

[seaweb11]

My vote is on the old chain and depending just how old the sprockets are I would change them too bad sprockets will eat up a new chain in no time good luck seven fifty four ever Craig in maine

I'm on this same train as well.

The chain
It's rubbing on something............

Sit on your bike and reach down, and with one finger pull up on the chain.
How much distance can you pull up? 1/2" or 1"  or  2"
Also take off the chain guard and see what kind of crap has built up in there that may be rubbing.
Look at your swing arm and just see if there are any wear marks on it?
Definitely have a boo at your sprockets .

Don't be afraid to set the tension on your chain correctly simply because you know it's an old one.

Get back to the tread with your results.

[kghost]

More than likely you have a bad link in the chain.

Put it on the centerstand and while you rotate the rear wheel slowly...you'll hear just the sound you described as the bad link comes off the sprocket.

[n9viw]

When tightening the spokes, pay close attention to the true of the rim- if you arbitrarily tighten spokes just to tighten them, you'll defeat their purpose, which is to hold the rim a) concentric to the hub, and b) in line with the hub. A few spokes tightened doesn't seem like much, but it can throw the wheel out of true, which will cause it to wobble at slow speeds and set up a vibration at high speeds. if you just tighten spokes on the other side of the loose ones you tightened, you'll pull the rim down to the hub, which will create a flat spot, causing a 'hop' in the rim, also not good.
IMO, your best bet is to take the wheel in to a shop that can true the rim, snug up any loose spokes, and check the rim for runout- safety is always worth money.

[stueveone]

So I finally had some time to do a little preliminary inspection on my bike.
The chain was about double as loose as it needs to be, about 40mm!!!!

Also, man, it's just really old and rusty. After I tightened it to about 18mm (although I didn't sit on it as suggested in the manual), and tried to spin the wheel, the chain got really tight and the wheel was barely able to spin. I then lubed the chain with chain wax as it was really dry and then it freed up the wheel a lot and was able to spin pretty well.

It does still get tight and loose/ tight and loose as you rotate the wheel around. The chain is garbage, for sure. And this may be the problem causing the sound I was hearing. I won't know until my new chain comes in. I ordered an RK xlink 104 link chain.

What'd you guys think?

[nickjtc]

It does still get tight and loose/ tight and loose as you rotate the wheel around. The chain is garbage, for sure. And this may be the problem causing the sound I was hearing. I won't know until my new chain comes in. I ordered an RK xlink 104 link chain.
What'd you guys think?

Change both the chain and sprockets. It's false economy to exhange one without the other.

[seaweb11]

Change both the chain and sprockets. It's false economy to exchange one without the other.

Ditto on that. Both sprockets with a new chain.

[stueveone]

Ok, so here's the skivvy so far, (although I'm a bit hesitant of saying the problem is fixed with just a couple runs around the block).

I tightened the chain and lubed it.
 
I did not hear the noise, so I'll wait to ride it to work tonight, at which point that will be conclusive, but I'm pretty confident that the problem was solved.

Sweeeet!!!

[oldfart]

Get off the bike, and roll it while holding your head down near the rear wheel.  If the noise is consistent but rhythmic, then it is rear wheel bearings.  This is a common problem on 750 and larger old Hondas.