hi guys just pondering about my bike and thought of engine ware. as my bike has 140 000 km or about 87 000 miles i think, dose any know if u can get replacement cylinders or is it a new block,, are these availble ??? has my bike got meny km left in it ??
thanks

it was just a thought i dont need em yet.......

Well, a guy on a Dutch forum opened his block after about the same mileage and you could still see the honing marks in the liners. If the compression check is OK (or even better a leak test) I would leave well alone.

yeah the bike runs fine, just wondering how meny km ppls bikes have on em , or how meny kms b4 the motors have failed. but that sounds pretty good for ware,

Alex,
I hope I can help set you at ease regarding engine life for your K. You now own an engine which is built using technology not found on other "common" brands.
Cylinders - integral with engine block and Nikasil coated. Nikasil is a trade name used to describe silicon carbide in a nickel matrix. It is electrolytically applied then ground to size. It has advantages as follows - extremely long wearing, low friction, reduces overall engine weight, excellent heat transfer and allows very fine tolerances to be used. Keep the oil and air clean and this material will be virtually indestructible.
During a rebuild it is still possible to lightly hone the cylinder lining, though you need to use a reputable enginge shop with good machine hone.

Crankshaft - Forged steel, hard-chromed and ground. Again, not found in many other applications. This is also extremely long wearing as well as being low friction and extremely high quality finish.

These and other quality engineering solutions are the reason why the K was an expensive bike when new, but hey, these bike wil rune for 500,000 K's if well maintained.

thank you verry much dennis

Hi Alex,
All the wisdom says if you use good oil, oil filters, proper BMW air filters and chase the oil at the recommended intervals you are looking at very very long lifetimes for the engine. If your compressions are OK just keep up the maintenance and riding.
Regards,
K-BIKE