Caring for Your Jayemar Your Jayemar instrument comes with a hand-tooled leather tool kit, made by my good friend Lon Whittier of M7 Straps. If you are not comfortable making adjustments yourself, reach out to Jason for an appointment in the Portland Metro area, or recommendations for a guitar tech in your neighborhood. But if you are confident working on your own instrument, follow these instructions to adjust intonation, action, neck relief, and pickup height.