Results 1 to 6 of 6

Thread: Need help. No fire. How do I test the exciter coil?

  1. #1
    Join Date
    Aug 2003
    --
    37

    Need help. No fire. How do I test the exciter coil?

    I bought an '83 185s and haven't been able to get any spark. I have taken the ignition switch, ignition coil, CDI box and put them on my other 185s and it started up first crank so I am assuming those aren't the problem. The wires coming out of the engine are the ones that I want to test. There is the plastic clip that has a green and a yellow wire in it, and then there's the red/black wire. I tested the red/black to ground and got nothing, and tested the yellow to ground and the needle on the multi-tester went all the way to the right. If it's not the stator I'm lost. I did buy a Clymer's but I can't find the darn thing or I wouldn't need to ask for help. Any help would be appreciated.

  2. #2
    Join Date
    Jul 2005
    Location
    Richland WA
    --
    808
    check coil resistance with an ohmmeter from teh CDI plug so it includes the wiring. Aside from resistance readings, theres nothing you can do without more exotic test equipment, namely, an oscilloscope. I have one, but you probably aren't next door.
    I might guess the Red/Black should go to ground, but have to check the diagram.

  3. #3
    Join Date
    Apr 2002
    Location
    s.w. michigan
    --
    6,498

    exciter coil specs

    Well My scanner is down but lets see how a picture works.
    I just had this manual gave to me today !

    john
    Last edited by jeswinehart; 08-24-2006 at 09:09 PM.

  4. #4
    Howdy's Avatar
    Howdy is offline Putting Priorities in Order, Busier than ever. Catch me if you can
    Join Date
    Sep 2002
    Location
    Celina, Ohio
    --
    10,079
    The Black with red striped wire is The exciter coil power wire. One test lead goes to the terminal on that wire and the other lead goes to the engine housing. I recommend 215-245 ohms for best spark results.
    Howdy

  5. #5
    Join Date
    Aug 2003
    --
    37
    Thanks guys. I had it on R X 10 and check the black/red to ground and it never even moved the needle so I'm guessing that might be my problem. I do have a picture saved of the wiring diagram so that helps too.

  6. #6
    Join Date
    Jul 2005
    Location
    Richland WA
    --
    808
    Yep, thatll do it every time. No power to the CDi. Look it over carfully before trashing it, might be something you can fix.

//ArrowChat Integreation Code //