2000 Hayabusa Cranks But No Start When Warm

[dpc467]

This is my 2000 Hayabusa on cold start this morning.

Have you tried opening the throttle a quarter turn when cranking, when it doesn't want to start?

Yes, no throttle twist in any amount will help. I am posting videos in few minutes for everyone to watch so everyone can see the issue. Stay tuned. Give me a few minutes.

[sixpack577]

@Kiwi Rider

he will see this now
and may be able to help further.

welcome to the org

[dpc467]

2000 Hayabusa all stock except D&D exhaust system. No power commander or anything.
Cold Start Up Runs Nice....

[dpc467]

2000 Hayabusa Charging System while running

[sixpack577]

Since it wont start now, can you remove the sparkplugs and check to see if any fuel is making it into the cylinders?
Or raise the tank and see if the coilpacks and or injectors are not getting power?

[sixpack577]

You can try starting it with the tank propped up

[dpc467]

2000 Hayabusa (No Start) after running for about 20 minutes and then I shut it off.

[dpc467]

You can try starting it with the tank propped up

Done that too. Tried also with the fuel cap open for ventilation or whatever. Nothing makes a difference until it cools all the way back down. BUT, like I said, I can ride all day for hours and hours as long as I dont stop and turn it off.

[sixpack577]

Done that too. Tried also with the fuel cap open for ventilation or whatever. Nothing makes a difference until it cools all the way back down. BUT, like I said, I can ride all day for hours and hours as long as I dont stop and turn it off.

what I mean is, right now it won't crank, so prop the tank, and while cranking, see if the injectors and coils are getting power right now.
If both are, maybe it's a vapor lock?

[dpc467]

what I mean is, right now it won't crank, so prop the tank, and while cranking, see if the injectors and coils are getting power right now.
If both are, maybe it's a vapor lock?

what I mean is, right now it won't crank, so prop the tank, and while cranking, see if the injectors and coils are getting power right now.
If both are, maybe it's a vapor lock?

what wiring do I need to probe to test for power on those things. I have good equipment for testing, just dont know what wiring or plugs to check for power

[Bumblebee]

Is there a way to upload videos on this forum??

You have to use a medium like You Tube to upload videos here....

I see I was late to the game here......

[dpc467]

You have to use a medium like You Tube to upload videos here....

I did. I figured it out. I posted 3 videos above

[Bumblebee]

I did. I figured it out. I posted 3 videos above

I just noticed....

I was away from the computer for a bit there walking the neighbor's dog....

[Bumblebee]

A couple threads to spit ball ideas....

Gen 1 running a lil rough | General Bike Related Topics

My gen 1 been running rough 1 weekend ridding my bike died and kick righ back on just a quick cut in and out notice when motor is hot it take awahile to start have to give it gas to start when hot also notice full throttle it seems like it hold back then a bust would just open up all the way and...

www.hayabusa.org

Help! | Busa problems

Hi guys was wondering if any of you can help me here, recently bought a 2nd hand gen 1 hayabusa test ride it etc was fine then riding it home it cut out on me now it seems that it will start but as soon as it starts to warm up after 5 mins or so then it just dies I try to start it again it will...

www.hayabusa.org

[dpc467]

UPDATE: New Video

A couple threads to spit ball ideas....

Gen 1 running a lil rough | General Bike Related Topics

My gen 1 been running rough 1 weekend ridding my bike died and kick righ back on just a quick cut in and out notice when motor is hot it take awahile to start have to give it gas to start when hot also notice full throttle it seems like it hold back then a bust would just open up all the way and...

www.hayabusa.org

Help! | Busa problems

Hi guys was wondering if any of you can help me here, recently bought a 2nd hand gen 1 hayabusa test ride it etc was fine then riding it home it cut out on me now it seems that it will start but as soon as it starts to warm up after 5 mins or so then it just dies I try to start it again it will...

www.hayabusa.org

My bike never dies. And it runs great when its started. Throttle opening will do nothing.

[dpc467]

2000 Hayabusa

Checked Coils with test light,. All coils light up. Im stumped LOL
it actually tried to start with one coil removed from one plug but run weird.

[TonyM995]

2000 Hayabusa (No Start) after running for about 20 minutes and then I shut it off.

You're doing a great job and I love all of the effort you're putting in to get help! I'm not sure what the issue is but I hope you figure it out.

Maybe verify if the engine is for sure getting fuel when hot. Like you said in this video, it's computer controlled for hot/cold start. The below help sheds more light on this topic.

The best feature on a standalone ecu is the ability to data log. It appears that your engine temp sensor is reading correctly. Since you can't check the functioning of the ECU, maybe check the physical things you can when it's hot.

On an aftermarket ecu, there are a few compensation tables that read the engine temperature sensor on the back of the block. On a standalone we add or remove fuel in these tables to adjust how many milliseconds the injectors are going to pulse based on the engine temp.

[Bumblebee]

UPDATE: New Video



My bike never dies. And it runs great when its started. Throttle opening will do nothing.

Huh.......just doesn't start when hot, eh?

.....and it turns over when hot but doesn't fire.......

I know I've read on here where the starter was swelling up from the heat or something like that....your bike seems slow when you are trying to start it hot.....

Maybe it's just me but my Gen 2 seems to turn over a lot faster....

@sixpack577 what do you think?

[dpc467]

Huh.......just doesn't start when hot, eh?

.....and it turns over when hot but doesn't fire.......

I know I've read on here where the starter was swelling up from the heat or something like that....your bike seems slow when you are trying to start it hot.....

Maybe it's just me but my Gen 2 seems to turn over a lot faster....

@sixpack577 what do you think?

It turns over great when hot. real fast like it did new. But I also figured something else out. I will post a video in few minutes and u can tell me what you think.

[dpc467]

2000 Hayabusa
Next Video...Noticed something that may be creating a problem.