Logo
Results 1 to 7 of 7
  1. #1

    Default manual primer 1985 20hp

    Amazing the things that are learned when buying a used motor.Until looking at parts diagram and pictures I realized the knob on my manual primer was missing the Red O-ring.I was wondering why the decal showed Red on the knob?Is it just to denote where to put the knob when priming or to keep it from drawing air in or both?

  2. #2
    Join Date
    Sep 2010
    Location
    ontario
    Posts
    13,808

    Default Re: manual primer 1985 20hp

    Decoration I think.------------------Do you have an owners manual to learn how to use the manual primer pump ?

  3. #3
    Join Date
    Apr 2010
    Posts
    3,692

    Default Re: manual primer 1985 20hp

    It's not a decoration. It's there to indicate position.

  4. #4

    Default Re: manual primer 1985 20hp

    I did get some info on how it is supposed to work.Never saw one before.So I guess the o-ring serves no sealing function?Now I just need to verify it is working properly in all positions.Did see it spray fuel out in carb. by using a flashlight when I figured it out.

  5. #5

    Default Re: manual primer 1985 20hp

    I think you are supposed to pull the primer knob all the way out.
    Then, push it in until the red o-ring just shows. When the engine
    warms up, push it in the rest of the way.

  6. #6
    Join Date
    Apr 2010
    Posts
    3,692

    Default Re: manual primer 1985 20hp

    The above sounds correct.

  7. #7

    Default Re: manual primer 1985 20hp

    sounds good. thanks

Similar Threads

  1. 1985 Evinrude 50 HP E50BELCO wont idle without engaging primer
    By Progator135 in forum Johnson Evinrude Outboard Forum
    Replies: 23
    Last Post: 03-21-2015, 12:21 AM
  2. Primer Manual Valve leaking
    By jpburks in forum Johnson Evinrude Outboard Forum
    Replies: 1
    Last Post: 08-25-2011, 03:36 PM
  3. Mariner 20HP service manual
    By mariner20xd in forum Mercury Mariner Outboard Forum
    Replies: 2
    Last Post: 02-15-2010, 07:01 PM
  4. Crack in manual primer solenoid
    By bw94 in forum Johnson Evinrude Outboard Archive
    Replies: 7
    Last Post: 10-04-2009, 09:44 PM
  5. Manual primer
    By bw94 in forum Johnson Evinrude Outboard Archive
    Replies: 2
    Last Post: 05-08-2009, 12:51 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •