Mercury Mariner Outboard 225 3 Litre Service Manual 1994, Page 351Get this manual
Maintenance Instructions Lubrication and maintenance inspection is owner's responsibility and must be performed at intervals specified, followingNormal Service Every 50 hrsof operation or 60 days (whichever comes first) Severe ServiceEvery 25 hrsof operation or 30 days (whichever comes first)
Operation in salt water area is consideredSevere Ser-
Lubricate 38 in '-38 in(9.5mm 34.9mm) bolt (area without threads) with 2-4-C Marine Lubricant, then secure clevis to steering cable with this bolt and locknutTorque locknut (item "d") to 10 lbft(13.6 m)
A CAUTION