Mercury Mariner V-250 V-275 Outboard Service Shop Manual 1990, Page 115Get this manual
36Remove bleed hose and balance hose 38Remove bolts from carburetor adaptor plates and remove platesNOTE: If desired, by temporarily installing attenuator plate to carburetor adaptor plates, adaptor plates and attach ing hoses can be removed and kept as an assembly until reinstallation
aBleed HoseBalance Hose
37Remove bolts from shift cable support bracket and remove bracketNOTE: These bolts are LOCTITEDUse heat to loosen if necessary