BMW R1200RT/R1250RT Forum

I received the heads, replated cylinders for a second time, used pistons, and despite initial refusal to replace the rings, a new set of rings from the machine shop. They claim that there is nothing wrong with their work. However, after the second reassembly, the bike makes worse compression than it...

I own a 2009 BMW R1200RT with 95k miles on it. In that 95k miles, I've lost performance and fuel economy twice. This is to stay that on two occasions that engine failed compression and leakdown tests. The last time, it made 150 lbs. compression with 9% and 11% leakdown in each cylinder. So, I love t...