So I recently acquired a 2006 zx14r and I got it back to my place started putting it back together it was wrecked it was laid down once we got power to it and got a battery on it it started right up and literally I didn't have the tip sensor in the whole everything was gone off of it like there was no fairings no no cluster no no front end no front end really I mean all the cosmetic stuff was off but we started it time and time again just you know 3 4 5 times and then I filled up my clutch reservoir filled up my brake reservoir change my kickstand and then took it off the stand and now it won't start it's a cranking and everything but it's not wanting to start at all it's getting compression I have spark I just changed the spark plugs and there is gas because when you pull on the throttle a little bit you can hear the gas getting fed into the carbs or the injectors so I'm clueless as to if it's a sensor I'm thinking it has to be a sensor since I did The Big Three meetings gas air and spark all those are good what else should I check thank you for your time

I think you answered your own question. Tip sensor not plugged in/missing.

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If you just took the bolt out and let the TOS hang on the wire while the nose was off, the TOS might not have been leaned enough to kill the ignition. The TOS has been known to stick no matter how far off vertical it leans. That could explain why the bike started without the TOS if it was not bolted onto the fairing stay in the nose. If you unplugged the TOS to remove the nose, what position was the nose left in while it was off? Upside down? Might have stuck.

If I'm not mistaken, the bike does start and run with the TOS is unplugged even if the bike tips over.

If the TOS was stuck in the OFF position, I don't think you would have spark. That's how it works, it stops ignition.

Did you try unplugging the TOS again after the fairings were put back on? If you neer ran the engine before working on it, you don't know if it started with the TOS plugged in.

I think your TOS is stuck. Unbolt the sensor and shake it around. Tap it on a hard surface to try to free it up. The switch is like a teeter totter. It is supposed to rock left to right and if it makes contact, the engine shuts off.

If you determine the TOS is stuck, I'd probably replace it even if you get it unstuck. Assuming it is working properly, you can test it by unbolting it, holding it upright and then tilting it in your hand. I'd probably still replace it even if it passes the test. You don't want to worry about it shutting off by accident if you hit a bump and it sticks again. I remember some owners went without the TOS worrying it might make contact when in a hard lean but I never actually heard anyone say that happened. I have heard people say the bike still ran for a few seconds even after it tipped over.

What is the battery voltage?

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I have not had the tip sensor at all we never had one the harness was just hanging there and it has been so I'm just clueless as to why it would start without it we haven't in the fairings have all been off the bike we haven't put the fairings on really at all and like I said I changed my kickstand I did my clutch and my front brake hydraulic fluid top off or brake fluid and I took it off the stand and I tried to start it cuz I was going to write it up and down the street and make sure everything was cool with the engine and it wouldn't start and it still won't start

And just to be clear since I got the bike I have not had a tip sensor at all and when we initially put a battery in it it started up for some reason and it started up a few times

Trying to figure out if tip makes contact or breaks contact. It might start for awhile until maybe the ECU recognizes it.
So no contact of the tip and it runs, meaning, as if holding both wires out in the air.
So contact are the tip wires touching and when tipped over, breaks the wires from touching.

With a paper clip, touch both tip wires together and see if it starts? Remember also, FI has no float, meaning, fuel injection can run upside down if you can still feed it gas and feed it oil on the upside down of it. That, or the engine starves of oil and she locks up running dry at the crank.

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I'm pretty sure my 2008 started and ran with the TOS lead disconnected from the sensor. I sort of remember freaking out because I started the bike and worried if I damaged something by not having the TOS connected.

So the bike never had a TOS since you bought the bike. There's an indication it is supposed to run if the TOS is disconnected because yours did recently and probably was doing it before this problem came up. I'm pretty sure mine ran with TOS disconnected.

I repeat, if you have spark, the bike isn't responding to a signal from the TOS. The TOS should either kill spark or else it should not interfere at all.

If the ECU is getting a signal from the TOS, that signal is coming because the teeter totter switch has made contact. The ECU would not respond to the TOS breaking contact. Not making contact is how the TOS is supposed be when the bike is not laying on the ground. If it's a teeter totter switch with two poles, one on the left and one on the right, the switch is open unless it swings all the way to the left or all the way to the right. I see as being like an ON/OFF/ON toggle switch: Middle position is open circuit = no signal coming out of the TOS, left position is closed = signal is coming from switch, right is closed = signal coming from switch. I doubt if the ECU even gets alerted if the TOS closes. The ECU needn't know a thing, all that needs to happen is the spark stops so engine shuts down. I have tested my TOS in hand as mentioned earlier. Mine works. Never got a code from the ECU. The ECU doesn't need to tell you your bike is laying on the ground and if it did, it would be too late anyway.

* Last updated by: Rook on 5/1/2021 @ 4:41 PM *

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Come to think of it, maybe I did get a temporary code on the meter when my bike ran without TOS. I can't remember, all I know is it ran and there was no code after the TOS lead was plugged back in even if there was one before it was plugged back in.

Your meter must back on. I doubt the bike would start without the meter plugged in because the ECU must communicate with the meter unit. Is there a code on the meter?

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changed my kickstand

the kickstand has a cutoff switch as well...

Yes on changing kickstand , check that switch plus starting the bike 3 4 5 times may have drained the battery to that magical point where it will turn over but not start .

My way of thinking is... no way would I design a system that does not cutoff the ignition but keep FI running in its side? Factory would be liable for that kind of thinking.

There was a meter-running question, so with video device [cell phone?] in hand, I walked out to the bike, pulled the meter connector, it started right up. No sensor telemetry in the dash to stop it from running.

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the kickstand has a cutoff switch as well...

Kickstand down, bike will still start in N. I don't think it will start kickstand down and in gear even with clutch lever pulled. Again, if he's getting spark, it's not the kickstand switch. Kickstand switch kills ignition too but only in gear.

Put the kickstand up. press the kickstand switch plunger in and out a few times. Put in N. Does it start? You had spark so I don't think it's the kickstand switch but might as well check that.

You don't have the engine shutoff switch on OFF, right? You must not or you would have no spark.

My way of thinking is... no way would I design a system that does not cutoff the ignition but keep FI running in its side? Factory would be liable for that kind of thinking.

Ignition stops, engine stops, injectors stop. You can twist the throttle with the key on and engine not running and it doesn't spray fuel, right?

There was a meter-running question, so with video device [cell phone?] in hand, I walked out to the bike, pulled the meter connector, it started right up. No sensor telemetry in the dash to stop it from running.

Now pull the TOS lead and see if yours starts. If it does, there's nothing wrong with the lack of TOS on this guy's bike.

14er4Lyfe611, put the meter on, turn ignition key ON. Toggle to Battery Voltage. What does the meter say your battery is at?

* Last updated by: Rook on 5/2/2021 @ 1:16 PM *

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13.25 volts

13 volts should do it. 12 probably won't.

Are you sure the stick coils are pressed down all the way onto the plugs? You must have removed the plugs to check compression.

Does the bike have a Power Commander?

* Last updated by: Rook on 5/3/2021 @ 8:33 PM *

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The plugs is one of the first things I replaced I made sure to unscrew the tips off so they seated properly..... Ill check them again

I checked the plugs and they're seated properly because I that's the first thing that I did like I said when all this started happening what I have noticed that I should have said before is that the ZX14 is you know it's got a pretty distinct sound or sounds when you turn the key to the on position you hear a bunch of clicking a little bit of winding a little bit I know that's a fuel pump and something else I don't hear any of that now once I put power to it what do you think that could be so now when I put power to it you don't hear anything at all you don't hear fuel pump you don't hear the others humming and clicking so I think that's probably what my problem is

Could a fuse have blown?

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Good call, Rook. I'd go at the rear under the seat, there is a fuse box and one fuse is for the ECU.

Might be getting confusing here, so are we saying we have a tip over switch hooked up or not?

Fuel pump noise and the subtrottle actuator [stepper motor] is cycling the plates per water temp. Cold, it chokes closed and opens part of the throttle. Hot, it cycles full open. I love FI short of things like this.

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we have two fuse boxes under the tail on the Gen1. The one back by the ECU has a fuse called 10A IG which I imagine must mean 10 amp ignition. That would be it. Grab it carefully with a pliers and pull it out. A set of fuses from an auto supply often comes with a plastic fuse puller tool but I imagine a pliers would work fine as long as you're careful.

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