installed brand new motor, I got the Raw kit. The chain is scraping on the in side of cover???? I have not used the bike yet, I was afraid of scraping through the cover. Is there some sort of an adjustment? I heard of grinding teeth tips down to help with chain, but it seems to fit on sprocket well. the chain just seems to be to wide to be going through there, Is this normal for 80 cc engines to have chain scrape? Please help, I am new to posting on this site, I could use some help..thanks Aaron