450R-156
12-18-2007, 03:20 PM
Had my top end re done this fall on my 450R and i finally had a chance to start it up the other weekend and it was running good for a litle bit then, it started dying on me had to give it a litlle bit of gas every few seconds to keep it running, then I adjusted the idle and it was running fine till it started back firing pretty bad. So I shut it down and this all happend with a period of five minutes. It was late so the next day i tried starting it again and one some kicks it felt like there was no compression. Does any one have any ideas on what this would be, i thought it might be the valves but i am not very good when it comes to engines