No. Correct operation of the unit is obtained by using the correct type and grade of oil, as specified in the owners manual. We recommend Yamalube because we know its quality and performance.
No. Warranty covers the unit for manufactured defects. The quality or lack of periodic service has no influence on whether a failure is a manufactured defect or not. Warranty doesn't cover failures caused by faulty workmanship by others. We recommend you use a Yamaha dealer. They are factory trained, have the necessary special tools and up to date information.
A copy for your model may be available, particularly if it is a recent model (i.e. last 5 years). Earlier model manuals may be unavailable. Contact an authorised Yamaha dealer for availability and price or for specifications only.
