04 zx10r not starting - Kawasaki ZX-10R.net
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post #1 of 20 Old 06-17-2017, 05:47 PM Thread Starter
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04 zx10r not starting

Hi all,

Just recently bought my zx10r from an auction that it seems has been sitting at the tow yard since Sept 2016( from towing invoice), and just got a new key for it. Put the key in, and it starts cranking fast but does not crank over. Checked gas tank - can see gas moving around freely so ruled out gas problem. Took battery out, connected booster cables to positive and negative battery lines, still same problem ( was suspecting maybe faulty battery, but with this test I dont think so?).

Was wondering what to check next that could cause my bike not to fully start...maybe starter motor, alternator, spark plugs? Wanted to know what you guys would try next.

Thanks in advance for your kind help and let me know if you need any further details.
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post #2 of 20 Old 06-17-2017, 09:18 PM
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FI light on?


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post #3 of 20 Old 06-18-2017, 02:31 PM
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When you turn the bike on do you hear the fuel pump prime?

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05 ZX-10R SWB.
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post #4 of 20 Old 06-18-2017, 03:03 PM Thread Starter
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FI light on?


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Hi Twist-IT and thanks for you're reply. The F1 light is not on - only the green neutral and red engine oil light are on. The bike has 37k btw
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post #5 of 20 Old 06-18-2017, 03:45 PM
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Um, it cranks fast but doesn't crank? That makes no sense. If it's "cranking" that means the motor is turning over. If the starter I'd just spinning fast, then It's not cranking. That would indicate a starter clutch issue since the engine isn't rising to start.

So have you checked to be sure that the crankshaft is actually turning when hitting the starter?

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post #6 of 20 Old 06-18-2017, 04:02 PM Thread Starter
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Um, it cranks fast but doesn't crank? That makes no sense. If it's "cranking" that means the motor is turning over. If the starter I'd just spinning fast, then It's not cranking. That would indicate a starter clutch issue since the engine isn't rising to start.

So have you checked to be sure that the crankshaft is actually turning when hitting the starter?

Sorry for confusion and thanks for you're reply SkyDork. What I meant to say is that it starts cranking, then when I pull down on the throttle it cranks even faster like it is about to turn over.

Also, is the crankshaft that weird gear like thing that is in the rear seat? It starts winding a little before I even try to hit the starter so I guess it is working? Sorry - I am new to troubleshooting.
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post #7 of 20 Old 06-18-2017, 04:05 PM Thread Starter
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Originally Posted by zx racer View Post
When you turn the bike on do you hear the fuel pump prime?

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Actually I don't think I heard or it was paying attention to it - but that is a good to thing look at. Although It would be strange for fuel pump to go bad this early - bike only has 37k on it?
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post #8 of 20 Old 06-18-2017, 04:22 PM
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Originally Posted by Omar Man View Post
Sorry for confusion and thanks for you're reply SkyDork. What I meant to say is that it starts cranking, then when I pull down on the throttle it cranks even faster like it is about to turn over.



Also, is the crankshaft that weird gear like thing that is in the rear seat? It starts winding a little before I even try to hit the starter so I guess it is working? Sorry - I am new to troubleshooting.

Several things happen when you turn the ignition key on. The fuel pump with run for 4 seconds to prime the fuel rail, the exhaust servo in the tail section will run through a cycle, the instrument cluster will cycle the lights and indicators, and the secondary butterfly valves in the throttlebodies will cycle (on later models). Until everything stops moving/cycling, you shouldn't hit the starter button.

And since it's fuel injected, the primary butterfly valves will be closed normally when starting. If you open the throttle, that opens the valves and keys more air into the motor. That is easier for the starter motor to turn the engine over and it will speed up slightly. And is completely unnecessary with fuel injection. You shouldn't open the throttle while starting it because that will lean it out and it should be rich for starting.

So I'd be checking fuel pressure out of the fuel pump at this point to be sure it's getting the proper amount of fuel. Sounds like that may be the issue based on the rest of the description.

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post #9 of 20 Old 06-18-2017, 05:33 PM Thread Starter
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Originally Posted by SkyDork View Post
Several things happen when you turn the ignition key on. The fuel pump with run for 4 seconds to prime the fuel rail, the exhaust servo in the tail section will run through a cycle, the instrument cluster will cycle the lights and indicators, and the secondary butterfly valves in the throttlebodies will cycle (on later models). Until everything stops moving/cycling, you shouldn't hit the starter button.

And since it's fuel injected, the primary butterfly valves will be closed normally when starting. If you open the throttle, that opens the valves and keys more air into the motor. That is easier for the starter motor to turn the engine over and it will speed up slightly. And is completely unnecessary with fuel injection. You shouldn't open the throttle while starting it because that will lean it out and it should be rich for starting.

So I'd be checking fuel pressure out of the fuel pump at this point to be sure it's getting the proper amount of fuel. Sounds like that may be the issue based on the rest of the description.
Is there a walkthrough guide/video on how to do this?
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post #10 of 20 Old 06-18-2017, 06:31 PM
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Originally Posted by Omar Man View Post
Is there a walkthrough guide/video on how to do this?
"How To" Test Your Fuel Pump - Kawasaki ZX-10R.net

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