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Old January 31st, 2021, 03:46 AM   #1
Jonscott5479
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Need help

98 ninjette *turn key on and nothing lights up but Got power to the solenoid, cause I can jump it and then the cluster lights up and engine cranks over. While running lights are dim and battery has to be charged at least once a day
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Old January 31st, 2021, 04:08 AM   #2
Triple Jim
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Jonathan, those are classic symptoms of a failed battery. Be careful when jump starting that you're not doing it from a car with the engine running, for example. That can cause your Ninja's regulator to fail.

Welcome to the board!

Last futzed with by Triple Jim; January 31st, 2021 at 05:55 AM.
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Old January 31st, 2021, 06:44 AM   #3
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Old February 1st, 2021, 04:59 AM   #4
Jonscott5479
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Well I just bought the battery maybe 2 weeks ago. But I did jump it off of my wife's ford fusion the other day but it was already doing all this before I did that. I tested everything with a multimeter today and had nothing past the 2 wires on the solenoid so I put the OEM one back on. Now dash works bit I hit the start button and it just makes a clicking noise once. I can still start with a screwdriver. Idk what it is but I'm tired of buying parts when the old ones are obviously still good
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Old February 1st, 2021, 06:10 AM   #5
Triple Jim
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From what you're describing, your new battery is discharged. Maybe you blew the regulator if the engine on the Fusion was running when you did the jump start. If you get the engine running and have a meter on the battery terminals, you can see if the voltage rises when you rev the engine, indicating the charging system is working.

The problem with jump starting from a car with a running engine is that it will likely supply 14+ volts and a lot of current capability. If the bike regulator thinks it need to do its job and shunt some of that 14+ volts to ground, it is then working against a high-current supply instead of the few amps the bike alternator can supply. Since it's not made for that, it fails immediately.
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Old February 1st, 2021, 08:28 AM   #6
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Quote:
Originally Posted by Jonscott5479 View Post
Well I just bought the battery maybe 2 weeks ago. But I did jump it off of my wife's ford fusion the other day but it was already doing all this before I did that. I tested everything with a multimeter today and had nothing past the 2 wires on the solenoid so I put the OEM one back on. Now dash works bit I hit the start button and it just makes a clicking noise once. I can still start with a screwdriver. Idk what it is but I'm tired of buying parts when the old ones are obviously still good
Hi Jonathan, welcome to Ninjette!

Here's how to test battery and charging-system-condition:

1. measure battery voltage with everything off. What's voltage?
2. measure battery voltage when cranking. What's voltage?
3. measure battery voltage while bike is running at idle. And at 5000rpms. What's voltages?

Did you charge new battery before installing? New battery comes discharged and needs to be charged for 24-hr at trickle-rate before using.

Give us a little history on bike, maybe pattern will match previous experiences and fix will be obvious.
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