hey its meeeee again.ok i pulled this 12 hp brigs 281707 4029 01 91052211 apart and gave it a new set rings and gaskets i put her back together with a new coil and get good spark and plenty of compression when i spin it on the starter but she wont fire.i lined up the timing marks etc even gave it a shot of start ya bastard.it backfied thru the exhaust once and that was it . any ideas????regards mike the 53 year old aprentice
