Hello all I'm having a top end bog on my 02 800 edge to won't rev over 7200 rpms and it bogs of the line when I really get on it....I replaced the spring in my clutch and it all looks good I cleaned my carbs and moved the main down one to a 480...the main question I have is what are the timing marks supposes to be at and I know I need to disconnect my tps..I read 28* at 2000 rpms is that right? Do I leave the key on unleaded or premium when I do it? Is the tps connection the black plug with a few wires coming from it by my carbs?? Tusks for any of the help!!