hello, im hoping you can help me. i have tried using the search but i cant found anything on this but basically ive just put a new piston in my bike it has an athena 70 kit. got it all back together fired up perfect let it run for a bit then switched it off to cool then did that again and then started it up and gently rode it round the block then i felt it lose power so i stopped and turned it off. i then kicked it again just to see if it has compression and there was no compression. pissed off!!!!!!!!! so when i got it back to mine i took the head off and just looked at the o ring in the top where the spark plug goes through and the o ring was snagged and tiny bits had come off... so i looked down in the barrell and the top of the piston has tiny little pin prick dents on the top?? i havent had time to take the barrell off again yet but would any one have any ideas on what could of caused this when i rebuilt i put a new small end bearing in it new o ring in the head new gaskets where the barrell goes against the block and new circlips rings piston and gudgeon pin. any help would be much appreciated would like to just add the bike is air cooled! cheers Alex
