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  1. J

    engine turns over real slow when hot

    Hi all, a buddy of mine has a 4cyl. merc. the motor runs great but won't start when hot it turns over real slow. put on a new starter, new sol, battery cables,new battery,checked all grounds still you must wait untill it cools down before it will start. also checked timing, any help with this...
  2. J

    tell tale

    where is the tell tale on a 9.8 mercury 1967 thank you
  3. J

    cooling system 9.8

    Hi all hope you can help. working on a 1967 9.8 replace the impeller but don't see any water coming out not even a spray. Plenty of water comes out of the flush plug and the plug on top of the motor when removed, I know it should have water coming out some place :confused:
  4. J

    FDL-21 parts

    Hi guys"looking to put a new thermostat kit and a fuel pump kit in my 1967 20hp johnson, can't seem to find one here on Iboats. Thanks for any help
  5. J

    clutch dog

    Hi guys I had my boat out the other day 20 hp 1967 johnson ran great except for one split second, seemed as though I hit something log large fish (clutch dog) :confused: only happened once wot the water was muddy so not to sure if a clutch dog would do this just one time ?
  6. J

    Year Of Manufacture

    1977
  7. J

    Paul Moir

    Thanks for all the help in the past. I can tell you like these older motors, My johnson 67 20hp? t-stat don't have a spring should there be one? The kit I got for it had a spring and lots of other parts could this kit be for different motors the t-stat was the same but thats all the gasket was...
  8. J

    1967 ? mystery motor

    Hi all I'am still not sure on this model # FDL12 don'nt match this motor almost positive it should be FDL21 but now thats not the only mystery my transom is 20in. from top to bottom my motor is 23 1/2in. from where it sits on the transom to the cavitation plate so the plate is 3 1/2in below the...
  9. J

    impeller replacement

    Hi all I just replaced the impeller on a 20hp 1967 johnson after I put it back together I noticed in the book it calls for a washer to be placed on the top part of the driveshaft? should mention its a selco manual. I did'nt notice any washer when I had the LU apart should there be one there...
  10. J

    125 Force

    Hi guys: I would like to find out if there any major problems with the 125hp Force Year & modle #s unknown just looking for a general input on Force motors of this hp and I would like to thank you all in advance for any input on this so THANKS
  11. J

    Fuel pump

    Hi Guys, Looking to rebuild my carb and fuel pump over the next few weeks. does anyone know where I can find a fuel pump kit for a 1967 johnson 20 hp? iboats don't list one for that year. I already replaced impeller, seals, T-stat, switched over from pull start to electric start. I might have...
  12. J

    electric start

    Hi I would like to find out what the difference is in starter solenoids, I'm about to change my 67 20 hp johnson over to electric start. iboats has 2 different solenoids 1 for 18hp & 1 for the 20hp 18hp is for older motors the 20 is for newer ones, will either solenoid work for this? Thanks for...
  13. J

    johnson molel FDL 21

    anyone know where I can buy parts for johnson fdl 21 looking for lower unit seals drain/vent plug seal impeller-kit with gasket t-stat kit with gasket iboats don't have everything in stock since I have it tore down I would like to replace everything, it did have water in the gearcase so its time...
  14. J

    lower unit

    Hi can anyone give me any advice on this I just took my lower unit apart model# FDL-21 and the copper tube has a small hole in it,should that be there? It's about a 1/3 the way down the tube. I want to redo the seals and impeller with new t-stat, Thank you
  15. J

    electric start

    I would like to switch my pull start to electric start and put on a charging system Thinking this is a 1967 20hp johnson can this be done? thanks for any advise
  16. J

    mix it up

    whats the best oil & mix for an old johnson 1967-1975 ? I been useing sae.30 1qt.-6gal somkes alittle but don't foul the plugs
  17. J

    I D Johnson

    :confused: Just wanted to find out if anyone out there knows how to Id the year and hp of a Johnson motor without the model# can you tell by serial # ? Thanks for any help
  18. J

    model #

    I have a older johnson (motor) # FDL12R I can find FDL12 on the different sites But not FDL12R It don't look like it would be a 1958 it's not a rounded hood like the 50's looks much newer. The only thing on the hood is a pic. of a seahorse/ 20 :confused: ALL numbers do match FDL12R ( WHAT'S...
  19. J

    charging system

    :confused: I have a 1958 18 hp johnson pull-start can I put a charging system on this motor :eek: :
  20. J

    oil seals

    looking for the seals for lower unit on a 1958 johnson 18 hp, does anyone know where I can buy these seals ???????
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