...i've noticed a few new ppl down here in the A50 board...
..haven't said this in a while, and i'm speaking purely from my own experience...
..we must keep a check on our intake and exhaust valve clearances..
..i check, and usually adjust mine every 4000-5000 km...
..there is a noticable increase in overall performance every time i make adjustments...
..i set my intake to .04mm per the service manual's recommendation..
..i set the exhaust at .03mm because i want to be sure to get all that spent fuel outta the cylinder...
..
..also, i can't stress enough the importance to keep your oil changd often..
..i change mine around 500-750 miles...
..these air-cooled 50cc engines burn that oil up in a hurry...
peace