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  1. S

    Water entering cylinder

    On my first outing of the year I noticed a miss in my 85 Evinrude 90 hp model E90TLCOS which I suspected was bad fuel left over from the season before. I drained the tank of the remaining 7-8 gal of fuel, replaced the water separator filter and pulled the spark plugs for replacing. I was...
  2. S

    Throttle / Shifter Handle

    I have what I believe is a 77 Series OMC Control Box w/remote trim on my 85 Sylvan with an 85 Evinrude 90. The handle is cracked and causing the trim button to stick in the UP position. I have located another control box with a good shifter handle and want to swap the two but I can not get the...
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    85 Evinrude 90 -- spark issue

    Serviced my boat early May ran the motor '85 Evinrude E90TLCOS and cleaned things up after winters storage. Motor fired up and ran good. All was good for my first outing. Finally had the opportunity and pleasant conditions to put the boat in the water. At the ramp the motor wouldn't start...
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    Mercury Parts

    In general are Mercury parts in shorter supply than OMC motor parts? Yesterday I picked up a 2005 Mercury 8 hp (209cc) 4 stroke outboard ser# 0R052738 model F8M(?) Japan origin. I thought I would look up some common parts such as a carb kit and water pump kit and such. I was surprised to...
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    Lost Proformance

    Last fall I acquired '85 Sylvan Fish & Ski with a 90hp Evinrude E90TLCOS. First several outings it ran fine (this season) both at idle and cruising at 5200 rpm. Last weekend it developed a noticeable miss that seemed to disappear at higher rpm. While attempting to put it on the trailer it...
  6. S

    Spark Plug Confusion

    My '85 Evinrude 90 V4 model E90TLCOS calls for Champion QL77J4 or L77J4 plugs. I found several used plugs the previous owner had evidently used which were QL77J4C. So while at my local auto parts store I inquired if they carried the QL77J4 or ----J4C plugs. They had plenty QL77JC4's but being...
  7. S

    Fuel Contamination / source?

    As some of you know I recently rebuilt my 18 hp Evinrude and I had a couple carb issues I had to remedy. Those resolved I wanted to reroute the line from the fuel pump to the carb. In doing so I noticed the fuel was a dark yellow like strong urine! Fuel entering the line is a bluish-green...
  8. S

    '73 Evinrude 18 hp / Before & After

    Thought I would post several pic's of my completed "rebuild" project I pestered you guys about over the last several months to let you know your time in answering my/our questions are not done in vain and your help here on this forum is a valued asset to many of us. Thank you !
  9. S

    Sweaty carb

    I just ran my newly rebuilt 18 hp (18304A) and observed a condition I have not noticed before which may or may not be normal. While this motor is not running as I had hoped it would at this point I'm rather sure the carburetor is the issue. I could not get the high speed orifice plug out for...
  10. S

    Points allignment

    Installed new points and one set is severely misaligned. Is there a means of correcting this condition? Will this misalignment result in poor ignition? Should this set be replaced?
  11. S

    Filter / water separator

    I've got a '85 90 hp that the VRO was giving me issues so I went to a conventional fuel pump and will now mix my oil and gas at fill up. My question is concerning the in line canister type fuel filter / water separator. Will running an oil/fuel mix through this canister give me any clogging...
  12. S

    Model Identifier Meaning

    Would someone help me with model identifiers? It's a 25E77H Johnson 25 hp. The identifier codes page here seem to start at the 1980 yr. and up. It is "E"lectric start and "77" is the year but I'm stumped on the "H" code identifier. Also to look at the motor it appears to be a long shaft...
  13. S

    Hot and No Smoke?

    In getting ready for the upcoming spring 'bite' I pulled out my '71 9.5 and the '65 FD-19 to run them a bit to get them ready. The 9.5 started and ran fine. The FD took a few more pulls to get it going but ran pretty well. However I was somewhat concerned with the amount of steam it was...
  14. S

    Complete Gasket Set

    Can anyone tell me where I might find a complete gasket set for my '73 18304A? No luck here on Marine Engine. Even some of the gaskets I foresee needing are no longer available here. Suggestions? Links? Thanks.
  15. S

    Oxidation / White Rust

    I recently acquired a '73 Evinrude 18 hp that was seized and said to have been stored under a porch for who knows how long. I did get it moving again and believe it is worth trying to save. The main issue I have at present is the amount of Oxidation or White Rust that exists on at least half...
  16. S

    Long to short shaft swap

    I recently acquired a '73 18 hp E18304A which is fitted with a long shaft (apparently converted by looks of the spacers paint color) and I'm considering swapping the short shaft from my 65 FD-19 onto this motor. Are the two interchangeable? I don't need a long shaft for my boat but I...
  17. S

    Thermostat Replacement 85 90hp E90TLCOS

    What is the EASIEST method to access the thermostat cover bolts? As I understand the service manual it is done while the power head is removed. I do not have the luxury of the equipment / shop environment or experience to tackle such 'extensive' repair. I have watched a "YouTube" video of...
  18. S

    Warning buzzer short?

    I recently purchased a 1985 Sylvan with an '85 Evinrude 90 hp E90TLCOS which I have discovered (thru preventive testing of the heat and oil level sensors) had previously had the warning buzzer removed. I suspected the reason it had been removed was due to a problem in the circuit somewhere so I...
  19. S

    '85 Evinrude 90 VRO

    I recently acquired a new (to me) boat with an 1985 Evinrude 90 (E90TLCOS) VRO. I have read and watched a number of videos of owners disabling the VRO function and mixing their gas mainly for the piece of mind of knowing the motor is getting the right mixture of fuel/oil. Seemed reasonable to...
  20. S

    Where is ADMIN ?

    We are being inundated with HACKS and ADMIN does nothing!
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