New member introduction and Busa question

[Rojo]

--->new member introduction<--- | New Owners Forum

Hey Everyone, I'm the new guy around here and figured I should introduce myself. My name is Harry. I'm a husband of eleven years and father of three; two sons, Harry, age 5, and Dale, age 3, and a beautiful daughter, Gyllian, age eighteen months. I've provided a pretty meager existance for them...

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#WelcomeHomeBrotherhood *

[pashnit]

Just here to admire the bike.

And the straps off the front end loader of your tractor.

[CBXRider]

What's a Kanji?

In case you’re not kidding

[TallTom]

Those screens aren't in the fuel rail, there is one in the end of each injector.

In the fuel rail above the injectors. Correct?

[sixpack577]

In the fuel rail above the injectors. Correct?

No, there are no filters in the fuel rail.
The filter is in the injector itself, in the tip, under the black plastic cap.
This is an injector out of my '03 Gsxr1k that I just did.
The other end/tip looks different on a Busa, but the filter end and internal filter is of the same design.
To remove them, thread in a bolt
(M6, pitch doesn't matter, it's just to bite the I.D. of the filter's plastic cage, so you have a grip to pull with).
Grab the bolt with vice grips(or a vice), and the injector with the other hand, and slowly pull and work the filter out...a vice makes this Much easier.
Then I clean the injectors(activate with battery, flush Both directions).
The easiest way to put in a new injector filter, is to put the filter upright on a flat surface, and Slowly push the injector over the filter, until it seats flush.

[sixpack577]

This is a Busa injector, as you can see the tip has a different design than the Gsxr's pictured above, but, the filter end is the same, as is the filter's replacement, which is worth doing on a gummed up fuel system.
The filter is under the black cap, that the blue arrow points to.
(the visible upper and lower o-rings are external seals, and should be replaced if they have hardened, rotted, or have obvious damage. A light coat of vaseoline is recommended to prevent the o-rings/seals from rolling, pinching, or tearing on install).

[TallTom]

My memory recalled they were in the rail. I wanted to say one on each end. But I'll believe everything you just presented.

I think I actually have pics somewhere. Now I'm curious if there was an early and later version of Gen 1s.

[OldBusaGuy]

In case you’re not kidding

View attachment 1674570

[OldBusaGuy]

In case you’re not kidding

View attachment 1674570

Like I said, I'm a newbie in the Busa world. But I'm here to learn.

[sixpack577]

My memory recalled they were in the rail. I wanted to say one on each end. But I'll believe everything you just presented.

I think I actually have pics somewhere. Now I'm curious if there was an early and later version of Gen 1s.

I don't think so, but give me a minute to check, as I can't remember either...

[OldBusaGuy]

This is a Busa injector, as you can see the tip has a different design than the Gsxr's pictured above, but, the filter end is the same, as is the filter's replacement, which is worth doing on a gummed up fuel system.
The filter is under the black cap, that the blue arrow points to.
(the visible upper and lower o-rings are external seals, and should be replaced if they have hardened, rotted, or have obvious damage. A light coat of vaseoline is recommended to prevent the o-rings/seals from rolling, pinching, or tearing on install).

View attachment 1674580

Thanks so much for posting those pics.

[sixpack577]

I don't think so, but give me a minute to check, as I can't remember either...

Nope, there is an extra fitting on one of the external fuel pump bike's fuel rail, but all the gen1 injectors are of the same design.
If I recall correctly there were 2 different injectors available, with the only difference being the spray pattern, but other than the small spray tip difference, the injectors and fuel rails are the same.
No filters in either fuel rail.

[sixpack577]

The replacement injector filters are not available as oem replacement parts either...you have buy a new injector, lol.
The filter is not pictured here, as it is considered part of the injector, but it is located between numbers 5 and 7 in All of the diagrams.
Here is early '99 fuel system, 2 versions.
And 2007, still otherwise the same.
And 2002-2007 are the same otherwise anyway.

[kml]

99 02 service manual
microfiche
01 update
02 update
owners manual
fuel injection and starter gears are the major changes from 99 to 03.

Dropbox

www.dropbox.com

welcome to the forum

cheers
ken

[SSGT_B]

Welcome to the sickness


Got pie?

[OldBusaGuy]

Welcome, looks like a nice example. Maybe dropped on its right side? Are those tire marks over the kanji? Yes there is a sidestand switch but it won’t allow the bike to start, not run poorly. I’d hate to get a bike that’s had several injectors and plugs and a fuel pump ‘ECM’ replaced on a bike with such low miles. Good luck!

No skid marks on the kanji. Probably just a reflection from my tractor or something. And the ECM that I was referring to wasn't about the fuel pump. I just don't know if the electronic brain is called an ECM like on cars and trucks or something else. The seller also gave me the extra three sets of plugs, the two extra sets of injectors, a power commander, an ECM and a few other things that he had replaced and are likely good parts.

[OldBusaGuy]

99 02 service manual
microfiche
01 update
02 update
owners manual
fuel injection and starter gears are the major changes from 99 to 03.

Dropbox

www.dropbox.com

welcome to the forum

cheers
ken

Thanks for posting that Ken. I've already been checking out how to test the fuel system. Lots of great info there.

[Rojo]

IM BACK AGAIN | New Owners Forum

New owner again!! I am now on my 4th BUSA!! Been a while and now I’m back. My first busa was a 2002 , second busa 2008 , 3rd was 2017 and now a 2024 25 anniversary.. realizing how much I missed riding a hayabusa. Some pics attached … originally joined November 2003

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[dadofthree]

Change fuel, use fast idle

[Rojo]

Fixed My Hayabusa, After 2 Years. | Busa problems

New fuel pump fixed my spluttering and misfiring problems, other symptoms were, fouling plugs, high co, flames out of throttle body, rough running, intermittent power. My most recent, previous thread has pump and injector tests in it. I've found (to my cost) that most problems are that off a...

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