R100GS PD Fit New Timing Chain 

Thank you for your kind comment. I am very pleased the videos have been of help to you. All the very best.

Yes the procedure is pretty much the same for all models from 79 onwards. Pre 79 models are similar, but they have a double row chain and there are some other differences. The guide bar (left tensioner) should be fitted with 0.5mm preload according to the factory manual. I fit it so that the chain is touching it with out any load. And yes it is durable. The spring loaded tensioner should press onto the chain under spring pressure during normal running. I release the cable tie holding the tensioner off the chain about 38 min into the video.

Moto Phoenix my R 65 LS from 1982 and only 63’000 km has no sign of timing chaine now but I will keep preciously your tutorial! Once again many thanks to have done this. I know how hard it is to do that ! 🙂

That is hard to say,' perhaps every 100 000 km. It depends on how well the machine has been looked after and what kind of life it has had. Usually I will replace a timing chain when it sounds noisy (rattles), but if I am overhauling an engine I will replace it anyway.

Moto Phoenix ok thanks! Seems not so easy to do it...

Nicolas Brindesi it is a little tricky. Getting the valve timing right is very important. So long as you are methodical in your approach, you should be okay. Once the chain is fastened I suggest you turn the crankshaft through two full turns in the normal direction of rotation and then look to see that the alignment marks are lined up as they should. The rest is straight forward reassembly. All the best..........