i have no compression on my 450r...
Posted: Thu Nov 02, 2017 7:39 pm
i recently picked up a 07 Crf450r from a guy who said "the bike just stopped running". when i got it, i tried kicking it over and it had literally NO compression. almost like an 80cc. i cleaned the carb, changed the spark plug, fresh gas and still got nothing from the bike. no pop or any sign of it wanting to start. i tore it apart to check the valves and saw my timing was off a tooth. i advanced it 1 tooth and got the marks lined up for the timing, put it all back together and tried kicking it over. now it's CRAZY hard to kick over! the bike has so much compression that it takes my full body weight (190lbs) and more to even kick it down once. and still it has no sign of wanted to start.. has anybody had this problem before? what can i do to get this beasly bike running before desert season is over? please help...