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Posted by Bucko
- April 02, 2025, 16:20:14 PMWhat is a 'VDS'?
Posted by Dustywolf
- April 02, 2025, 03:23:40 AMUpdate 2: Put VDS back together, no continuity in any situation. Bike will engage starter without it, but won't spark at all without it obviously.
Perhaps, this could be my issue?
Posted by Dustywolf
- April 02, 2025, 00:41:49 AMBattery tested good after a load test, also I found the VDS not together properly. Even with it messed up, it still tries to start. Could this be preventing spark? I thought a bad VDS would also prevent starter motor.
Posted by Dustywolf
- March 30, 2025, 02:00:12 AMQuote from: Bucko on March 30, 2025, 00:03:59 AMDid you load test the battery?
Will do so Monday, will report my findings.
Posted by Bucko
- March 30, 2025, 00:03:59 AMQuote from: Dustywolf on March 29, 2025, 20:15:11 PMIt is a 1999 model, so no clock that I know of.
So it sounds like the battery isn't my issue, what other things could it be? Super weird thay it only sparks once. I had hope that the circular relay was the issue... but apparently it's not even connected to the ignition system.
Did you load test the battery?
Posted by Dustywolf
- March 29, 2025, 20:15:11 PMIt is a 1999 model, so no clock that I know of.
So it sounds like the battery isn't my issue, what other things could it be? Super weird thay it only sparks once. I had hope that the circular relay was the issue... but apparently it's not even connected to the ignition system.
Posted by Bucko
- March 29, 2025, 12:37:39 PMQuote from: Dustywolf on March 29, 2025, 04:13:37 AMWhen I mean external power, I am referencing a jump pack. Could a bad battery cause no spark even with the jump pack connected?
Assuming the Jump Pack is OK, it should work fine, but you should probably load test the Jump Pack too. You don't say what year your Drifter is but if it's a post 2000 model, with a clock, a real quick 'charged' battery load test is if the clock resets when you hit the starter, your battery is hooped.
Posted by Dustywolf
- March 29, 2025, 04:13:37 AMWhen 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 PMQuote from: Dustywolf on March 28, 2025, 10:03:09 AMThat'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 AMThat'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 PMA 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 PMUpdate: 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 PMThanks! 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 AMHere is a schematic of the ign. system:
Posted by Dustywolf
- March 25, 2025, 23:43:44 PMHi 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!