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    What year was a 15 cu.ic 9.9 and 15 produced

    I am almost sure most 9.9s and 15 HP johnson and Evinrude are 13.2 cu.in blocks.What year did they produce the 15 cu.in. and is there a noticable power/speed difference? Thanks
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    1991 15HP Johnson Problem

    The motor starts easily,runs great at idle,Problem is when going full throttle it sometimes just bogs down and only runs 1/2-1/3 power/speed.The carb has been cleaned and kited,The fuel lines from inlet to pump have been replaced with new the fuel line from pump to carb also new.I have tried a...
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    1968 6HP Johnson

    I just bought this motor.It looks new the carb is corroded but I have a kit coming.My problem is the manual start has been removed.The mount that screws on the face of the carb is intact,The rope is gone and the spring has onloaded.Can someone explain where the spring connects down on the bottom...
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    1976 35HP Johnson

    I just bought a 1976 35HP Johnson.The key switch was cut off. Is there anyway I can find the wireing diagram to connect the wires to a new keyswitch? I havent looked at the wire colors,I havent the slightest idea of how to wire the keyswitch?Thanks
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    1981 7.5 Merc HELP

    This motors serial number is 5812033,it has a Mercarb #1364-4929 I cant find a carb kit,Is the Tillotson kit compatable its number is 1364-7902? Second question> The reverse lock is enguaged,I cant get it to release with out using a screwdriver and prying it clear of the rod.It is enguaged in...
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    1985 50HP 4 cyl.Merc

    First time owner user of a mercury outboard.I have the 50 as listed in the title of this post.My question is How do I lock the motor in the up position?
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    1985 50HP 4 cyl Merc

    Got as used motor,the lower was leaking.I replaced both prop shaft seals and the bearing housing o-ring.I noticed today the o-ring is leaking again.The gearhousing nut thats plastic?? Nylon? does it need torqued on? I didn't use any sealer on the o-ring when I did the new seals and o-ring last...
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    35 evinrude missing

    I friend has a 35 Evinrude 1980. The lowspeed trolling works great 3/4s full throttle runs fine, but open it all the way and there is a bad miss.The compression is 100lbs both cylinders,new plugs,New fuel line,Spark at starting jumps 7/16 inch bright blue zap. I need suggestions the motor is...
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    Need help determining year of motor by cowling

    can anyone help me determine the tear of this Johnson 25HP motor THANK YOU!
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    Johnson 25EL75B HELP!

    I am lost with this motor!! Need some advice! Motor has new coils,plugs,points, condensers,Fuel pump,Carb kit, Starts fine, the carb setting at 1 1/2 turns open gives the lean sneeze it stops at 3 turns open (the sneeze).I cant get it to idle to do fine adjustments,I get it down in RPMs and the...
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    1985 50HP merc 4 cyl

    I have leaking lower on this motor ser# 7192202.In the parts schematic it shows a nut in the gear housing to remove the bearing carrier assmbly.Before I try to remove that nut,Can anyone suggest how to remove it without any special tool. I never did or do Mercs this is a exception helping the...
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    gotit

    Got it
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    Iboats Marine store

    Gotta put this up! I wonder who responded to my question?? I got my parts elsewhere. Can you understand my question and then look at their reply!!?? How can they expect more of my bussisness? Question:::> I need a keyed switch for a 1975 25HP Johnson mod# 25EL75B the OEM # 0386974,Can I get a...
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    Whats my best Plug

    1988 Evinrude 15 HP,Plugs foul out trolling,Run it wide open then it will troll then foul out.Suggested plugs are Champion L77J4 also listed are the radio noise suppessor QL77J4 and then QL16V. I am running the L77J4,What plug will help burn the fuel and keep trolling? One of the suggested or...
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    Help with a part

    I hope I can insert a pic! The motor 1975 Johnson 25HP mod# 25EL75B The part is on the shift lever its a nylon roller.It is on the left in the pic and again removed for the help I need.The nylon roller rides on the shift lock for F-N- R gears and the shift lock activates the neutral safty...
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    1974 9.9 spark problem KIT NUMBER????

    The motor is a Johnson 9.9 mod#10E74S The bottom cylinder isnt fireing at low RPMs, it does fire when I increase the RPMs. I changed the coils same problem.I have gone through it two times, Points,New plugs do help but eventually it gets back to not fireing on the botton hole. Neighbor has a...
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    Ignition coils test

    Have a 1975 25HP Johnson mod 25EL75B. How do I check the coils? I have put the ohm meter black in the spark boot and the red to the clip which has a blue with white tracer wire.One coil reads ohms and one doesnt. Should I have a certain ohm reading? and should I get a reading off the coils...
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    Gearcase kit 1978 Johnson

    Can anyone tell me of a gearcase seal kit for a 1978 35HP Johnson mod 35E78R.I cant find a kit.Do I have to purchase seperatly bearings,bushings and seals?
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    Flywheel torque specs

    1975 25 HP mod 25EL75B Johnson I have a poor manual by choice I cant buy one for every motor.So My manual says 480 to 540 inch lbs torque for the flywheel nut.Is this correct? I divide the inch lbs by 12 to get the foot lbs, Which only turn out to be 4ft lbs to 4.5 ft lbs. Thank You!
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    Please help increase my knowlege

    I mentioned remove the batt cable and had this in return (BELOW),My question is by removing the battery from a running motor will it destroy any thing on the motor? I do know reverse polarity will.This has me confused. If a emergency start was needed without the batt.Would you fry any...
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