Jump to content
Sign in to follow this  
Nubombterk

Points smoking on a 702

Recommended Posts

Nubombterk

Had spark but lost it. When checking the points I found the plastic isolators were melted. Replaced the points and condensor. Set the gap at .020, checked for spark and had nothing. Points started smoking and melting the isolators again, along with the wire casing going back to neg. side of the coil. Any suggestions for a newbie? Thanks Josh

Share this post


Link to post
Share on other sites
 
Save Old Iron

Josh, you either have

 

1/ a shorted ignition coil

 

2/ an ignition coil which requires an external resistor - and you do not have a resistor attached

 

3/ you are using a "high performance" coil with a low resistance primary meant only for use in transistor based automotive electronic ignitions

 

any one of the above can fry points due to excessive current draw in the coil primary wiring.

  • Like 2

Share this post


Link to post
Share on other sites
 
Nubombterk

Replaced the coil and problem solved. Thanks for the advise.

  • Like 1

Share this post


Link to post
Share on other sites
 
Ed Kennell

The smokin rodent chalks up another W !

  • Like 3

Share this post


Link to post
Share on other sites
 

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

  • Similar Content

    • WheelPuke
      By WheelPuke
      I have my 25A fuse blowing every time I put a new one in the slot. The old one was burnt up when I got the tractor put this year. It sat for a year with a dead battery. I stopped using it as much because the transmission is clattering pretty bad when taking off on second or higher. I had to replace the clutch belt a few years ago and couldn't get an OEM. Not sure what is the problem there that's another issue though.
       
      I have checked the wiring and patched the worn spots where it could be grounding out. The fuse blows as soon as there is power to the system with the ignition off. I'm at a loss of what to check for at this point. Any input from someone who has had this issue would be appreciated. I'm not sure what these units are in the photos but do not know how to test them for a failure. They are directly in loop with the battery and the ignition loom looks to run into that 25A fuse.

    • BrianKoch
      By BrianKoch
      Hello gentleman, 
       
      Problem: will not crank on its own, will crank with jump box—but still not fire
       
      Recent things I did prior to this issue: cleaned fuel filter, replaced battery cables, replaced cable from ignition to starter
       
      I have my test light out and am probing around. 
       
      There is no power at ignition/magneto wire or the ignition/starter wire
       
      There is power everywhere else






    • Jeff-C175
      By Jeff-C175
      Detailed wiring from the Demystification Guide #492-4509
      4 pages 1.4MB Color
      p7-67 to p7-70
       
      Onan powered
       
      1989 416-8 model 31-16O801
    • trident
      By trident
      Need some help. My 800 Special has an electric PTO. It is not working. Checked Ohms - nothing. My questions are 1) how does the PTO come off and 2) can they be rebuilt? I took the bolt out that I thought holds it on but no luck. Must be something more?
    • grasscuts
      By grasscuts
      Hi, here's what happened. I changed out 9 pin moles plug...had issues tracter quit running and changed the plugs while I was at it....got plugs from auto store cross reference to ngk they said it was the same heat range and I check electrod  length with calipers ,same...tracter started right up and ran great for about 10 min. And started back firing and quit.....going to check it out tonite anybody have an idea?    
×
×
  • Create New...