oil leak

Oil Leak 

Most likely excessive crank case pressure caused by a blocked breather. There is one on the passenger side of the engine which looks like a black plastic block. This needs cleaning out but can be a fiddle to get off (still haven't done mine yet) but there are threads about this on the site. Also, in the air filter box under the air filter is a small (about 1 1/2" dia. x 1 1/2" long I think) cylindrical gauze filter. Mine looked like a black carbon block but after cleaning I found it was a white plastic mesh! I know photographs would be useful here, but my PC's not co-operating at the moment so perhaps there is someone out there who could jump in with suitable ones.

Breather 

John, When it comes to removing the breather on the side of the engine, if you do a search (the yellow word above) on "740 230f breather system" this will give you the thread you need. Chris