Yamaha - Retainer,vlv.sprg. - YF1-46011-33-30 Mercury-40HP-EFI-2000 A: Many technicians check or

A: Many technicians check or replace thermostats during routine cooling system service or every few seasons depending on use

It protects the lower unit from corrosion and can be adjusted slightly to help balance steering torque while the boat is underway

it can limit fuel delivery and cause loss of power or rough running

strong acceleration

Yamaha - Retainer,vlv.sprg. - YF1-46011-33-30 Mercury-40HP-EFI-2000 A: Many technicians check orYF1 46011 33 30 RETAINER,VLV. SPRG. WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings. ca. gov.