I am a new hobbyist and the OEM Service manual has saved me lots of time and money. I feel everyone needs one for each different bike they own. A must have for any bike or style of bike. Sometimes shops mislead customers but one thing is for sure. A manual will not mislead you. If the task is over your head then go to a shop and know what to expect or should expect. I have one of these manuals for each bike I own.