Originally Posted by fred888
My question is: Can I fit a thicker 'O' ring to take up the extra joint height? Or are there any other options available to me.
If you're going to all the trouble of taking the cylinders off you can just block the oilway off. As you say, it's only there because of the aircooled bikes using the same crankcases need it.
Theres a description of how to do it about halfway down this thread - http://www.moto-one.com.au/performance/888part4.html
- something to do with a 4mm grub screw and loctite.
If you're pulling the cylinder anyway seems a lot cheaper than new pistons or more drastic stuff