Good mechanic in Aus
 

Who is the gas gas guru in Australia.
Thinking about taking the engine out and sending it away for to get the bottom end and tranny checked for damage and wear. Also carby rebuild.

Dave at TSP - http://twostrokeperformance.com.au/ - knows his stuff.

But its not a real hard job for any qualified bike mechanic to split the cases either. I'd find someone local/have a crack yourself if you're that way inclined.

also SMW in Sydney ( Hornsby), theyre a GG dealer too. They know gassers inside out.

Dealing with SMW now . Started tracking down a top end noise but now decided to give the old girl a birthday with a engine rebuild. So far thumbs up on service.
Not saying anything is wrong with Dave @ TSP BTW, it just that SMW was easy to find on the net and seemed very knowledgeable on the brand and how to go about what I need to do, I'm going to have a crack at it myself.

Never split cases but sent complete top end off to Dave for rebirth. Good bloke to deal with. Thanks for the tip. Learning so much from this forum.