‘12 Zx6r does not turn over but bump starts - ZX6R Forum
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post #1 of 40 Old 10-27-2019, 01:37 AM Thread Starter
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‘12 Zx6r does not turn over but bump starts

Issue began months ago when I replaced the stator but was told I didn’t put enough loctite on the screws. I had been riding quite a while until one evening I was heading downtown, and i proceeded to warm my bike up like I usually do; all of a sudden, the bike kicks off. I engaged the start button several times, no dice. Turned over until I lost battery power. I bump start... push in neutral, get up to speed, put in 1st and give gas while letting of the clutch. Acted like it wanted to start, but cuts back off. Several attempts after recharging the battery, no dice. Over the course of several months, I tried almost everything aside from replacing the engine. Replaced starter... it turned over but didn’t start. I replaced battery, replaced voltage regulator, replaced spark plugs, replaced starter clutch (all gears). Still turned over but no dice. Then it stopped turning over altogether. I gave up and took to my neighborhood mechanic. He has it for two weeks. Tested both sides of the engine and the top end. He found the screws loosed and shaved from contact of the magneto. He replaced and put loctite and all. But he says he tested the starter which was within spec. Spark plug gaps were out of spec, he put back to spec. He tested battery under load, within spec. He says, he used slightly higher voltage, but still wouldn’t turn over. Checked cam chain and all associated parts. All within spec. Checked coil also, within spec. Voltage between switch and starter also within spec. He recommended a rebuild.

All that was in Houston. I live in Baltimore now. After my move, I bump started the bike and that’s how I’ve figured out that it bump starts without skipping a beat. I rode through all gears, but still won’t start with the switch. I get the priming sound (clicks), and it idles regular after starting, but outside of that I need haaaalp because the starter button won’t turn it over. I bought some liqui moly engine flush, but I don’t want to dump it in there and find out I’ve wasted 50 bucks flushing and putting in new oil for no reason.

I don’t know what else to do and I don’t want to get taken to the cleaners by a shop over something I know I am capable of fixing. Any ideas?

Last edited by djdadd10; 10-27-2019 at 01:40 AM.
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post #2 of 40 Old 10-27-2019, 07:57 AM
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I would hope that a professional mechanic would have checked the fuses.......

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post #3 of 40 Old 10-27-2019, 08:31 AM
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I personally can’t see that “engine flush” being of any benefit in your situation.
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Last edited by Duc995; 10-27-2019 at 08:33 AM.
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post #4 of 40 Old 10-27-2019, 09:03 AM
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Did you replace the starter solenoid, too? That’s the internal “switch” that your starter button activates to connect the battery to the starter motor, which then turns over the engine.

If your battery voltage is good, and the voltage at the battery goes up when the engine is running and reved, then the charging system should be good. That would then make it a problem of delivering the electricity to the starter motor, which would be either the starter switch itself, or the starter solenoid. Like RJ said - check all the fuses too.
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post #5 of 40 Old 10-27-2019, 10:49 AM Thread Starter
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Did you replace the starter solenoid, too? That’s the internal “switch” that your starter button activates to connect the battery to the starter motor, which then turns over the engine.



If your battery voltage is good, and the voltage at the battery goes up when the engine is running and reved, then the charging system should be good. That would then make it a problem of delivering the electricity to the starter motor, which would be either the starter switch itself, or the starter solenoid. Like RJ said - check all the fuses too.


No, the starter solenoid has not been replaced. But the mechanic said it was tested also. I checked all fuses. None were popped. If the starter switch were bad, would it still click and activate the fuel pump prime?


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post #6 of 40 Old 10-27-2019, 10:49 AM Thread Starter
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I personally can’t see that “engine flush” being of any benefit in your situation.


Shards of metal floating around in the oil.


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post #7 of 40 Old 10-27-2019, 11:15 AM
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No, the starter solenoid has not been replaced. But the mechanic said it was tested also. I checked all fuses. None were popped. If the starter switch were bad, would it still click and activate the fuel pump prime?


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First of all, is your neutral light on when in neutral? If no, then youve found the problem.

And yes, the starter switch activates a few different circuits when pressed. One of them being your fuel pump, and the other being the starter solenoid. Find your starter solenoid and jump it directly to your battery using some wires. If its good, it should click. (Make sure bike is in neutral or else the bike will try to move).
It should also click when using your starter button. If it doesnt, then check the wiring between the button and the solenoid.
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Shards of metal floating around in the oil.


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Why would thre be shards of metal floating in your oil??

Last edited by Scorpi0; 10-27-2019 at 11:19 AM.
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post #8 of 40 Old 10-27-2019, 11:50 AM
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Why would there be shards of metal floating in your oil??
Yeah, why would you be thinking that?!
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post #9 of 40 Old 10-27-2019, 05:34 PM Thread Starter
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Yeah, why would you be thinking that?!


The magneto shredded the bolts that came undone from the stator.
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post #10 of 40 Old 10-27-2019, 07:14 PM
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The magneto shredded the bolts that came undone from the stator.
Ah ok! I guess u could do a drain and fill of the oil just to be safe. No need to put any extra shit in there.
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post #11 of 40 Old 10-28-2019, 12:24 AM
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I would recommend checking the little switch on the clutch lever and also the switch on the kick stand. If they aren't working properly the it won't even try to turn over in certain circumstances (i.e. in gear and kickstand down or in gear and the clutch lever not pulled in).
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post #12 of 40 Old 10-28-2019, 01:14 AM Thread Starter
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I would recommend checking the little switch on the clutch lever and also the switch on the kick stand. If they aren't working properly the it won't even try to turn over in certain circumstances (i.e. in gear and kickstand down or in gear and the clutch lever not pulled in).


It doesn’t click in gear. When in neutral, it clicks, but doesn’t turn over. Tried with kickstand up as well.
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post #13 of 40 Old 10-28-2019, 01:29 AM
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It doesn’t click in gear. When in neutral, it clicks, but doesn’t turn over. Tried with kickstand up as well.
If the solenoid clicks but the starter isnt turning, then u have a loose cable somewhere and its not making its path to the starter.

Or a bad starter.
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post #14 of 40 Old 10-28-2019, 07:42 AM
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If the solenoid clicks but the starter isnt turning, then u have a loose cable somewhere and its not making its path to the starter.

Or a bad starter.
I’ve had a starter solenoid before that clicked, but still didn’t activate the starter. Bad starter solenoids can still click.
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post #15 of 40 Old 10-28-2019, 08:10 AM
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Quote:
Originally Posted by djdadd10 View Post
He recommended a rebuild.
I wouldn't trust a mechanic that recommended a rebuild for something that is pretty clearly an electrical issue. Since the bike bump starts OK your problems lie somewhere in the starter system and nowhere else.


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I personally can’t see that “engine flush” being of any benefit in your situation.
+1.

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Originally Posted by djdadd10 View Post
Shards of metal floating around in the oil.
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Originally Posted by djdadd10 View Post
The magneto shredded the bolts that came undone from the stator.
In that case you need to do an oil change. For the price of a jug of oil and filter it is cheap insurance to get the crap out.


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No, the starter solenoid has not been replaced. But the mechanic said it was tested also.
Since he may not have been that useful, try jumping the poles on the starter solenoid with a screwdriver. If it starts then your solenoid is bad. If that doesn't appeal to you, take a multimeter and check that you have 12V on the battery side post of the solenoid, then check that you have 12V on the starter side post of the solenoid when the starter button is pushed. If that is OK then I would be checking the starter button itself to be sure it is working properly. Take it apart, clean it and try again.


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Last edited by mmattockx; 10-28-2019 at 08:14 AM.
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