MF 755 engine upgrade from 150 to 200HP?

[oldbean50]

Hi, I've recently bought a 2012 MF755 with a Suzuki 150HP engine.   Records I've seen show that the MF755 can take a 200HP engine, and I happen to have a 200HP Yamaha I'd like to put on her.  Unfortunately the rating plate says 112kW (150HP) and my insurer says I can only attach an engine that is within the Manfacturer's recommended specification so I'm stuck for now.  I can't see that the older MF755s are different to newer models.....Can anyone advise how I ask Jeanneau and get a formal reply to say I can or cannot make this change, definitively?   Thanks John.