Mercury Mariner Outboard 225 3 Litre Service Manual 1994, Page 131Get this manual
10Disconnect bypass hoses between thermostats and exhaust adaptor plate 14Disconnect inlet fuel line
52191Inlet Fuel ne
15Remove bolts securing bottom cowl halves and remove bottom cowling
aBypass Hose
11Shift outboard into NEUTRAL position 12Unlatch throttle and shift cable retainer13Remove locknut and flat washer securing throttle shift cables and remove cables