Hi, I have a question about K 100 timing chain. I bought new timing chain from Motobins and ready to change. I noticed that one joint was in color of copper. Is it a mark? If yes where goes that mark?
Regards

No worries on aligning the chain to anything. It's the gears coordinating that are critical. Be sure the two timing gear arrows are pointing the way they're intended, and the crank gear as well.

Thanks for quick answer

Also, before you remove the old chain, for a K100 you need to ensure that zyl#1 is somewhere close to tdc on the compression stroke (#3 for K75 I think). This ensures that the cam shafts don't move when the chain is removed.

Good tip, Mr Holister!

In this picture you can see the cam sprockets lined up. The little U shapes at the top of both cam sprockets should be as close as possible to the top of the sprocket as shown.



As well, the crank has a PIN on it which is lined up as shown when the cam sprockets are aligned as shown in the previous picture. The three holes in the crank snout are for the screws that hold the timing plate on.





After lining all these up BEFORE you remove the old chain, you then follow the manual as closely as possible for the correct removal of the timing guides and tensioner. If you need further help since I just did mine a couple months ago I'll be glad to add more information. If I don't quickly respond, email me a reminder and Ill come back here and answer. kevin0232@gmail.com

Holister wrote:Also, before you remove the old chain, for a K100 you need to ensure that zyl#1 is somewhere close to tdc on the compression stroke (#3 for K75 I think). This ensures that the cam shafts don't move when the chain is removed.

Or you can remove the covers (cam cover, bottom end cover, then timing cover) and align the cams and crank sprocket dead up then scribe marks for all and remove the chain and related components.