Honda BF75D/BF90D Cooling System Troubleshooting and Maintenance

How to troubleshoot and fix cooling and water flow issues on a Honda BF75/90D Outboard Motor.

Owners Manual: https://marine.honda.com/support/manuals

Shop Manual: https://marine.honda.com/support/manu...

Honda BF75D/BF90D Maintenance Parts from Boats.Net
https://www.boats.net/catalog/honda/o...

Water Pressure Relief Valve: 19290-ZY6-003
Water Pressure Relief Valve Cover O-Ring Gasket: 19317-ZW9-000
Block Thermostat (60c): 19300-ZW9-003
Block Thermostat Cover (Aluminum): 19315-ZY9-H01
Head Thermostat (50c): 19300-ZY6-003
Thermostat Cover O-Ring Gasket (both): 19317-ZW9-000
Flush Valve: 19291-ZW9-000
Flush Valve O-Ring: 19297-ZW9-000
Water Pump Maintenance Kit: 06192-ZW1-000

Rydlyme (5 gal) from Amazon
https://www.amazon.com/gp/product/B01...

1/3 HP Sump Pump from Amazon
https://www.amazon.com/Superior-Pump-...

Flexzilla Adapter Hose from Amazon
https://www.amazon.com/gp/product/B01...

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