New noises??

[Jerobi]

Hello everyone, I'm a real newbie when it comes to working on motors so this might be a dumb question but after cleaning and reassembling the carbs and airbox everything is running fine, much better than before actually... except I hear what I can best imagine is a slapping noise coming from the cam chain area when I'm slowing down, its really bad in 4th, and the noise goes away as soon as I pull in the clutch. Each day I ride it gets progressively more apparent. I've been looking up a lot of info on cam chain tensioners as I thought it might be that but not sure if I'm on the right track, any ideas?

[Big T]

A slapping nosie while riding is more likely your drive chain

Does the bike make the noise when you put it on the centerstand, start it up and rev it?

If not, it's not the cam chain

[BassCliff]

Hi,

What bike are we talking about? Shaft drive or chain drive? GS300 or GS1150? Somewhere in between?

Have you?>>> New Members, CLICK HERE!!


Thank you for your indulgence,

BassCliff

[Steve]

A slapping nosie while riding is more likely your drive chain.

I have never heard a slapping noise from any of my drive chains.




Oh, wait, I don't have any drive chains.

Can't make any assumptions, as the original poster has not yet disclosed what bike he is talking about.

Jerobi, how about going into the User CP section and adding your location, then making a signature that shows your bike.

.

[Jerobi]

Sorry, thought I edited my sig but I guess it didn't work. I'm working on a '78 GS750.. Doesn't make any noise while idling or reving on the center stand tho

[tc862011]

my buddy has a gs750 and if the chain is to loose it will have that slapping sound when slowing down

[Big T]

Sorry, thought I edited my sig but I guess it didn't work. I'm working on a '78 GS750.. Doesn't make any noise while idling or reving on the center stand tho

I'll bet that if you check the chain while rotating the back wheel, you'll find a "tight" spot in the chain

[GSScoobie]

If the noise goes away when you pull in the clutch while riding,
it is most certainly NOT the drive-chain.
Check that cam-chain adjuster setting.
I believe there is a rebuild tutorial in Basscliff's site if you need it.

[tkent02]

Check that cam-chain adjuster setting.

There is no cam chain adjuster setting.

It either works or it doesn't.


The drive chain is easy to check. Take a look. I bet the sprocket teeth are all hooked.

[Jerobi]

Took a look and the chain was way too loose (about 4" of play) probably what was making the slapping sound. I've tightened the chain but while now while rotating the wheel on the center stand theres a spot where it gets real hard to turn. Is this because I didn't balance the wheel right and its still off center or something wrong with the chain?

[tkent02]

The chain and sprockets are shot.

[Jerobi]

What a bummer. I took out 5 bolts out that hold the sprocket cover on and set the gear shifter aside but still can't seem to remove the cover. Is there something else I have to remove before I can get this off

[Jerobi]

Also I'm not sure if the chain or sprockets have ever been replaced or serviced, highly doubtful, but there are 23,000 miles on the bike now so I'd assume it would be a good time to replace yeah?

[sedelen]

What a bummer. I took out 5 bolts out that hold the sprocket cover on and set the gear shifter aside but still can't seem to remove the cover. Is there something else I have to remove before I can get this off

Tap the cover around with a rubber mallet or piece of wood, should break free I would think providing all the bolts/screws are removed.

[sedelen]

Also I'm not sure if the chain or sprockets have ever been replaced or serviced, highly doubtful, but there are 23,000 miles on the bike now so I'd assume it would be a good time to replace yeah?

You should be able to determine how bad the sprockets are by looking at them. But you won't know how bad your counter sprocket is until you get in there.