Engine Mechanical Topics Discussion for motor builds, cams, head work, stripped bolts and other engine related issues. The good and the bad. If it goes round and around or up and down, post it here.

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Old Mar 26, 2022 | 04:19 PM
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Get the bike running, ride it hard for a bit then pull the plugs and give us a close picture, still hot would be better.

What you are saying is happening is making no sense mechanically or from an electrical standpoint.
 
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Old Mar 26, 2022 | 04:39 PM
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A little more history on the bike would be nice. What's been done to it and how long have you owned it and how did this issue arise?
 
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Old Mar 26, 2022 | 04:42 PM
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yes i see a blue spark if i crank motor
 
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Old Mar 26, 2022 | 04:53 PM
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Originally Posted by TwiZted Biker
Get the bike running, ride it hard for a bit then pull the plugs and give us a close picture, still hot would be better.

What you are saying is happening is making no sense mechanically or from an electrical standpoint.
Ok
I will send the pictures tomorrow
 
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Old Mar 26, 2022 | 05:36 PM
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Originally Posted by TwiZted Biker

What you are saying is happening is making no sense mechanically or from an electrical standpoint.
Yes, it's crazy, but I think it's an ignition problem.
What I don't understand is that when I finish the ignition test and reconnect the wires, the motorcycle starts. After no problem but the next day not start anymore
 
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Old Mar 26, 2022 | 06:28 PM
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The big question is - what carburetor does it have?

In the old days with points ignition, and especially if the condenser was weak and you flooded the thing, you could pull the boots up off the top of the plugs so the spark had to jump from the wire end to the plug. That would often make it start. Wasn't fool-proof but worked many times. And has nothing to do with the OPs issue....
 
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Old Mar 26, 2022 | 07:21 PM
  #17  
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Originally Posted by PLANET HARLEY
Yes, it's crazy, but I think it's an ignition problem.
What I don't understand is that when I finish the ignition test and reconnect the wires, the motorcycle starts. After no problem but the next day not start anymore

The next day would have helped make since in your first post .
 
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Old Mar 27, 2022 | 07:27 AM
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hi
old spark plugs



carburetor




 
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Old Mar 27, 2022 | 07:45 AM
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There are already 2 good resourses giving information, but I'll throw mine in also. Doubt it is ignition/electrical, as nothing there change between the first start and a warm start or later start. Sound like fuel to me. #1 flooding and by the time you do your check it has leaned out. #2 not getting enough fuel to begin with and next start attempt has enough. You tested spark, did you test fuel? The little squirt you can see initially. I would do a good carburator cleaning or at least shoot a little starter fluid without and throttle. If it fires off, not electrical.
 

Last edited by TSheff; Mar 27, 2022 at 07:47 AM. Reason: Spelli
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Old Mar 27, 2022 | 08:36 AM
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yes i tested the fuel

 
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