Modify message

The message has the following error or errors that must be corrected before continuing:
Warning: this topic has not been posted in for at least 180 days.
Unless you're sure you want to reply, please consider starting a new topic.
Attachments: (Clear attachments)
Restrictions: 6 per post (6 remaining), maximum total size 64.00 MB, maximum individual size 29.30 MB
Uncheck the attachments you no longer want attached
Click or drag files here to attach them.
(Clear attachments)
Other options
Shortcuts: ALT+S post or ALT+P preview

Topic summary

Posted by Dustywolf
 - March 29, 2025, 04:13:37 AM

When I mean external power, I am referencing a jump pack. Could a bad battery cause no spark even with the jump pack connected? 

Posted by Bucko
 - March 28, 2025, 14:03:15 PM
Quote from: Dustywolf on March 28, 2025, 10:03:09 AM

That's what I would think too... but even with a fully charged battery and even going as far as providing external power.. no change. I've also disabled the fuel system because yes, it kept flooding.

Not sure what you mean by 'external power' but you should load test the battery.  A static voltage test on a 'charged' battery can tell you if the battery is bad, but it doesn't tell you that it's good.  Measure the voltage drop while the battery is loaded (measure while cranking is a good test) - if the battery voltage drops more than a few volts, the battery is hooped.

Posted by Dustywolf
 - March 28, 2025, 10:03:09 AM

That's what I would think too... but even with a fully charged battery and even going as far as providing external power.. no change. I've also disabled the fuel system because yes, it kept flooding. 

Posted by Troll
 - March 27, 2025, 15:35:02 PM

A weak battery will still turn the engine, due to it having compression release cams, but may not have enough power to fire the plugs. The injection needs little power, so the injectors will probably still work, and flood the engine.

Posted by Dustywolf
 - March 27, 2025, 12:48:26 PM

Update: I can see a spark only when I first tap the start button. If I hold it down, no spark. But if I tap it quickly it will spark once. Thoughts?

Posted by Dustywolf
 - March 26, 2025, 18:50:10 PM

Thanks! I don't see that relay I was talking about on there... perhaps that an entirely different issue in itself. Any ideas on why it wouldn't have spark? It did have spark at one point when I first got it.

Posted by Troll
 - March 26, 2025, 07:07:30 AM

Here is a schematic of the ign. system:

Posted by Dustywolf
 - March 25, 2025, 23:43:44 PM

Hi all, I just got this VN1500 Drifter from my friend, whose brother was recently deceased in a motorcycle accident due to an intoxicated driver. This was his baby, and his project. So I am honored to continue his work and hopefully get this thing going!

It had spark when I first got it, but now it does not. I just found that my ignition relay (The circular one to the right of the battery) has an ohms resistance at 10. Would this probably be a safe bet that this is my issue?

Thanks!

SMF spam blocked by CleanTalk