Hi Guys, I think I might have a problem with my vale stem oil seals on my RC30, when looking down my inlet port I see a lot of carbon build up on top of the valve and the corresponding spark plug looks oily, it is happening on 3 of the cylinders to varying degrees and on one off the cylinders the top of the valve is very clean and the corresponding spark plug is a good colour.
My bike is not generally smokey but it did smoke once when I was sitting at traffic lights on a downhill.
Any opinions on build up on top the inlet valves ?
Ill try and upload pics but I'm not sure if they will load.
Any advice would be much appreciated.
https://www.flickr.com/photos/140293059 ... res/0N2940