BRIGGS AND STRATTON SINGLE CYLINDER "L" HEAD REPAIR MANUAL -AFTER 1981 AND CHAMPION SPARK PLUG GUIDE 2003 ISSUE. BOTH BOOKS ARE UNSTAINED, SLIGHT TEAR ON BOTTOM OF SPARK PLUG GUIDE AND DAMAGE AT BOTTOM ON FRONT COVER WITH SOME DOG EAR ON REPAIR MANUAL . PLEASE SEE PHOTOS OR EMAIL QUESTIONS THANK YOU.