alright i have my dads 2004 Suzuki rmz 250 that will not start and feels like very low compression.since the bike is not mine and myself being a 2 stroke guy i think I'm overlooking something or lack the knowledge lol. so roughly 2 years ago the bike had a new top end and valve adjustment. the 04s have a real problem with valves it seems like from what iv read and this one being no different has been shimmed and new valves installed at a shop. this was my first time adjusting the valves and i thought i did everything correctly. right now the valves have a intake clearance of .007 and exhaust valve clearance of .007. before i shimmed the intake valves the right valve was at .005 and the left was zeroed out. i did not touch the exhaust valves. so I'm not sure if i didn't get the timing marks correct or what because it feels like i have less compression then before.so im kinda stumped as to look next. keep in mind this is my dads bike and hes 50 ,only trail rides, and is not hitting the rev limiter!! thanks guys any input is welcome !!!!