Topic: CB750K - Where to begin?

[MCRider]

Still looks like a #530 chain. Another way to tell is a stock 78 running a 630 chain has a rear sprocket with 41 teeth and most of the earlier bikes that run the 530 have a 48 tooth. There can be some variation if a person changed the gearing. You may see the tooth number stamped on the sprocket when cleaned or give them a count.

I went that way, counting half of the teeth comes to a 48t = 530 chain.

Also, ALL the 630s were ORing. It doesn't appear to be an ORing, but the angle is bad to be sure.

[Jinsonphoto]

MCRider,

What do you mean by the angle is bad for sure? SO considering that the chain matches the motor, but not the sprocket, should I look into getting a new sprocket. So far when riding I havent noticed anything with it. What do you think?

[ekpent]

I think he may of been talking about the angle of the picture. Both of your sprockets are the right size for the chain and the early engine. The situation is if they currently are aligned correctly in your newer frame and rear wheel.  Here is a starter thread for you to read and ponder a little.   http://forums.sohc4.net/index.php?topic=98187.0

[Jinsonphoto]

Thanks ekpent!

[cb650PK]

In case you didn't realise, you also have Koni shocks on your bike, so do not replace them with cheep but shinny Emgos please.

[Jinsonphoto]

CB650K right on. Yeah hadn't planned on replacing them. But hopefully I can clean them up because they look a bit rough.

[Stev-o]

+1 - #530 chain.

[MCRider]

MCRider,

What do you mean by the angle is bad for sure? SO considering that the chain matches the motor, but not the sprocket, should I look into getting a new sprocket. So far when riding I havent noticed anything with it. What do you think?

Yes per Ekpent, I meant the angle of viewing, the angle of the picture. I've nothing to add that won't confuse the issue. Others have it all right.