I replaced the pull start, got a new glow plug, put everything back to factory specs and can finally get the pede to start. BUT now it revs really high and I think its the low end screw cause it bogs just a little until it gets over the low end speed hump and then takes off. Problem is, once it starts, it won't stay running unless I up the trim on the idle, at which point it takes off like a madman and wheelies all over itself. I know I'm close....any thoughts??????