spark plug black and sometimes falls on its face
today i was bored after puttin wheels back on recon so i took side panel off and pulled spark plug out and it was black, most of the threads were too. it was also just a little wet and when i rubbed the threads across my finger it left the soot trails across it and felt a little damp. im wondering if this normal for it to be damp and really black, the only "mod" i have is i cut the end of stock muffler off and pulled the guts out to improve sound, then rewelededit doesnt feel like it has any more oomph but sounds better. this wouldnt hurt it any would it, still has original carb settings other than i dinked with idle a little but got it back where it should be. also sometimes when at idle if i WOT it it stumbles for a few revs the takes off but not always. does this sound like it needs fuel air mixture adjusted or just a good cleaning or do i need to break down and rejet, i dont really want to if adjusting ,mixture will help. i have not done anything to it other than the idle and exhaust deal and the airbox lid is on all the time with an oem air filter. its starts nice though, if its a nice day just tap starter button and it fires up, if its cold its not as easy but thats expected. any input from yall engine wizz's would be appreciated.
Last edited by bobs330; 03-19-2011 at 06:36 PM.