thanks for your reply gizmo, upon futher running I have found that it is leaking around the screw on the camshaft cover left side out of the threads I plan on taking the screw out and putting some loctite on it I hope I hope that will fix it or i must have a cracked case the engine also wants to have the high speed needle almost all the way in it winds up to about 10500, and then when I richen the needle it acts eractic. My 150 saito does not act at all like this engine,I suggest everybody be careful buying used engines from where ever thanks chris