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88 race bike... no spark???

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    88 race bike... no spark???

    I have been converting my 88 Hawk to a track bike and did some rewiring. I finally got it all back together and everything hook back up and I an not getting any spark??? I have power going to the front and rear coils but nothing seems to be coming out of the pulse generator? Any ideas what it could be and why I'm not getting anything out of the pulse generator?

    Thanks
    Rob

    #2
    I hook my voltmeter to the plug coming from the engine/pulse generator and I am not getting anything but milli volt readings. I am wonder what should I be getting out of the pulse generator?

    Comment


      #3
      Ok I check resistance in the coils as per the manual and both are at 2.6 ohms which pass.

      Checked the resistance of the pulse generator and they both came up under the the specs, one is 445 and the other 437 and spec is 450-550.

      I get power to all the coil wires when I switch it on as you should via the manual.

      Spark plug wires check out ok too.

      So I have followed the manual check list and the only thing that's out of spec is the pulse generators resistance both are just under the spec.

      Is that enough? The bike ran fine before I rewired it.

      Well if I remember correctly it hasn't had the same power it use to have. Last year I was lucky to get it up too 100mph where it use to peg out at 125ish and the digital tach on my Vapor Guage goes hay wire. It will read fine then peg out at like 10000rpm while your putting around.

      Comment


        #4
        probably not the pulser coils but rather something in the "safety" system ignition lock outs. get out your service manual. check that the black box has power when key is on, and check run/off switch, clutch switch, neutral switch and grounds.
        Last edited by squirrelman; 03-25-2022, 06:48 PM.
        "It's only getting worse."


        MY rides: '97 VFR750, '90 Red Hawk, '88 Blue/Black Hawk, '86 RWB VFR700 (3), '86 Yamaha Radian, '90 VTR250, '89 VTR250 (2), '73 CB125, '66 Yamaha YL-1

        Sold: '86 FJ1200, '92 ZX-7, '90 Radian, '73 CB750, '89 all-white Hawk, '88 blue Hawk, '86 FZ600, '86 Yam Fazer 700 , '89 VTR250, '87 VFR700F2, '86 VFR700F.

        Comment


          #5
          Originally Posted by squirrelman View Post
          probably not the pulser coils but rather something in the "safety" system ignition lock outs. get out your service manual. check that the black box has power when key is on, and check run/off switch, clutch switch, neutral switch and grounds.
          And that annoying green ground at the subframe. I forget what that grounds, but I remember many times my bikes wouldn't start and that was the one I missed.
          Don't spend money and buy, spend time and learn.

          Comment


            #6
            Originally Posted by 6 View Post

            And that annoying green ground at the subframe. I forget what that grounds, but I remember many times my bikes wouldn't start and that was the one I missed.
            That wire grounds EVERYTHING.

            Just like "how much oil does the drain plug keep in the crankcase."
            Last edited by ParcNHawk; 03-26-2022, 10:31 AM.

            If you were looking for a support group you're barking up the wrong tree. This place is fulla enablers dude. - Shooter77us

            The bitterness of low quality lingers long after the thrill of a low price has gone. - RacerX450

            Comment


              #7
              Hell yeah! I played around with the bike today and figured out that I must have something miss wired. The computer/cdi box has 12v when switch is on but when I hit the start button it goes off??? So I did the old fashion screwdriver on the starter to bypass the switch and the bike fires right up! Now to figure out why I'm getting a power cut off too the cdi box when I try to fire it.

              Looks like there's a ground issue somewhere.
              Last edited by StreetHawk; 03-26-2022, 04:51 PM.

              Comment


                #8
                Originally Posted by ParcNHawk View Post

                That wire grounds EVERYTHING.

                Just like "how much oil does the drain plug keep in the crankcase."
                Small little annoying motherfucker considering.....
                Don't spend money and buy, spend time and learn.

                Comment

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