200 pro v loses power

[fishingbiggunn]

have a 93 yamaha 200 pro v model # P200TLRR. The problem is when cold runs good after going for a ride it loses power hard to get on plane for a couple minutes then regains power. Think it is either stator or trigger. Wondering how I could test either

[boats.net]

The best thing is to get yourself a service manual and the ign. specs are in there.