Thanks, slowriderz! I thought about the China´s too, but our national laws made trouble about registration. So planned to use an vintage engine to end the discussion, and legalize it. The Chainsaw engine i changed so much i could...and perhaps they will let it go, if not i already bought a vintage 98cc REX from Germany, and found a Villers in UK, and a friend said he will check for a vintage Husquarna
( Husky) 180cc (?) he knows about.
And belives it would run okay...time will show, a week more, and the last parts needed should be here! Only trouble its minusdegrees, a little icy and some snow here now........but hopes for a day i could get a chance to testride it soon!
Keep up!