[Sherco st125 clutch problem.]

I have recently had the engine out of my st125 .On refitting the clutch push rod dropped out. When refitting  the slave cylinder it appears the either the push rod is not seated or slave cyl piston is out too far (tried pressing it back in). So when built the clutch is always disengaged. Sherco web page down so can’t see diagrams, any ideas. 
cheers.  

[Sherco engine mount.]

Hi, any ideas to why the cylinder engine mount on my sons 2011 st125 has fractured. Bike has had only little light use. Would this be weldable ?