I have an 05 Raptor and it has been running like junk for awhile cause it needs to be rejetted bad. So my friend said he could fix it without rejetting and he stated to mess with the idle adjustment on the left side of the quad. Now I kept telling him its not gonna fix my problem but he races so he thinks he knows all but in fact he is an idiot cause the bike runs 100x's worse now. I've been riding it around turning the idle in all sort of variations but I cant get it to run the way it did anymore. Does anyone know the factory settings on it or anything that can help me. Its making me bog out in the middle rpm's and runs like junk and no matter what I try I cannont get it to run properly again. Thanks everyone in advance. :'(