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  1. M

    850 timing

    Ended up changing the trigger and rotor in my 850. I have great spark on all 4 cylinders now but cannot get it to fire. Does some one have a timing procedure for it? Motor is a 1976 mercury 850. Thank you
  2. M

    Mercury 1150 need a service manual

    So i picked up a 1967 Glastron with a 1972 Mercury 1150 on the back. Boat has not seen the water since 1998 and has been sitting in a barn since. I cleaned the carbs rebuilt the fuel pumps put in a new impeller,repaired all the old wiring under the cowl and put on a NOS Merc distributor cap...
  3. M

    Mercury 850 loosing spark

    I have a mutt of an outboard. It's part Merc 800 with a Merc 850 powerhead. The boat rubs for a while then it looses spark. Let it sit 30 mins or so and you get spark back. When I just lost it I went and jumped the wires on the switch box and the coil was sparking. However it was 30 mins...
  4. M

    Need help with my first OMC

    I recently bought a 1979 bowings aerocraft boat with a 185 OMC motor and outdrive. I am not new to I/O but all my experence with with mercs. I got the motor running the other day but when i bought it she needed some putting togeather. There are two ports on the exhaust mainfold that do not...
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