Tip over sensor tos fuel pump

[dreww]

If the Tip over sensor is broken/tripped will the fuel pump prime when the key is on? i think my tip over sensor is broken but i also just replaced the fuel pump so im seeing if the fuel pump would not prime if the TOS sensor was broken. bike turns over i just hear no prime

[sixpack577]

No, the fuel pump will not prime of the tip over sensor has failed.
You can unplug the tip over sensor and loop the connector to bypass it, and check to see if that is the problem.

[Oz22]

You can unplug the tip over sensor and loop the connector to bypass it, and check to see if that is the problem.

TOS is located on the RHS under the side cover then? "V" Is this where you unplug it?

[202mphbusa]

I swear mine would prime and the bike would start but die instantly, when I would forget to plug in my TOS

[sixpack577]

TOS is located on the RHS under the side cover then? "V" Is this where you unplug it?

View attachment 1687952

I remember the Gen2 tip over sensor being in front of the gas tank hinge, at least it was on my '08.
Regardless of where it is, it will have a short two pin harness on it, just unplug it, then take a jumper wire and connect the two wires in the plug on the harness on the bike, which will complete the circuit and allow the bike to start.
Tip-over sensors rarely fail, it does happen, but more often they just get stuck once they are tripped/the bike and switch are laid over or upside down.
Give them a good shake and the internal switch will come loose again.
It is a simple gravity switch, that breaks the connection when the bike reaches an angle that fuel can leak past the gas cap.

[BigBSBusa]

On a Gen1 it is located on the RHS near the fuel tank hinge, under the frame cross-member.

[Oz22]

On a Gen1 it is located on the RHS near the fuel tank hinge, under the frame cross-member.

That correlates with the Gen-II manual.
Probably never be a problem but it's nice to sort these things out in your brain, just in case.

I couldn't count the number of threads where riders went on to replace fuel pumps and filters and injectors, all to no avail, only to find it something simple all along. It's a peculiar human trait it seems to miss the obvious simple things. I did myself once years ago when a starter motor in the bellhousing of a car I owned was malfunctioning due to clutch dust buildup on the shaft the pinion gear runs up and down. I replaced the battery, then the alternator, then was in the process of replacing the starter motor when I discovered the issue. That was a Ford of course! I steer well clear of those cars, and GM. Japanese for Bikes and Cars is the secret to a happy life.

[Kiwi Rider]

I couldn't count the number of threads where riders went on to replace fuel pumps and filters and injectors, all to no avail, only to find it something simple all along. It's a peculiar human trait it seems to miss the obvious simple things.

This is true . . but also it's because somebody that is not trained and has no knowledge or understanding of the whole system, (the entire chain of events,) will tend to assume it's a faulty 'whatever' because of the lack of knowledge of the (in your case) starter system, and throws new parts at it (firing the 'parts cannon') without performing the basic tests (which they have no clue about).
Happens all the time with amateur 'back yard' mechanics.
When you work in the industry you will learn the correct testing procedure for faults pretty quickly, and you'll also learn how the system works start to finish. You'll also learn all the common causes of failure in any particular system.

[BigBSBusa]

This is true . . but also it's because somebody that is not trained and has no knowledge or understanding of the whole system, (the entire chain of events,) will tend to assume it's a faulty 'whatever' because of the lack of knowledge of the (in your case) starter system, and throws new parts at it (firing the 'parts cannon') without performing the basic tests (which they have no clue about).
Happens all the time with amateur 'back yard' mechanics.
When you work in the industry you will learn the correct testing procedure for faults pretty quickly, and you'll also learn how the system works start to finish. You'll also learn all the common causes of failure in any particular system.

You will also have the equipment necessary to perform some of the testing procedures that some "backyard mechanics" won't have.

[202mphbusa]

SO I tried bypassing my fuel pump relay and run the bike with the TOS disconnected
Bike only runs a couple seconds
so the ECU on a gen1 is shutting off the Injectors or Coils

[Kiwi Rider]

You will also have the equipment necessary to perform some of the testing procedures that some "backyard mechanics" won't have.

Once you know how, and what to test, get the equipment specific for those tests.
For example I bought a fuel pressure tester kit a few years ago off a local guy used a few times but like new condition for 30 bucks . . .

Trade Me

www.trademe.co.nz

There’s good deals out there.
Or just take the bike down a good bike workshop for diagnosis.