Mute all chords throughout. If you aren't used to using all the fingers on your fretting hand, then it may take time to get The Riff sounding fluent. The Riff also appears in the choruses, but isn't played the same every time, . Verse 2 uses fast, muted picking. The timing isn't rigid - listen to the record to get the rhythm exactly right. In the guitar solos make sure the picking on the 'soloing' guitars is kept even. Solos 1 and 2 are quite similar. The mb's in bars 4 and 8 of Solo 1 are (tabfu.thudspace.net)