2005 Yamaha F90TR 90HP Outboards Factory Service Manual, Page 80Get this manual

2005 Yamaha F90TR 90HP Outboards Factory Service Manual, Page 80

Power unit
9Check that" marks and on the driven sprockets are aligned

S6D85220

6Disconnect the cooling water hose and remove the bracket 47Remove the spring and timing belt tensioner 6, and then remove the timing belt from the driven sprockets, then from the drive sprocket

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