How to put fuel injection on 900rr !? - Honda Motorcycles - FireBlades.org
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post #1 of 14 Old 04-27-2009, 1:00 AM Thread Starter
 
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How to put fuel injection on 900rr !?

Hey I want to stick fuel injection on my 95 cbr but I dont want the complete wiring harness from another bike so I just needed to know what parts I need to completly make this work it would be nice if it was cheap but I dont like cutting corners and having problems later on... let me know
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post #2 of 14 Old 04-27-2009, 1:30 AM
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Re: How to put fuel injection on 900rr !?

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Originally Posted by 95erion View Post
Hey I want to stick fuel injection on my 95 cbr but I dont want the complete wiring harness from another bike so I just needed to know what parts I need to completly make this work it would be nice if it was cheap but I dont like cutting corners and having problems later on... let me know
You can probably get aftermarket stuff but I would think the easiest way is to get the complete harness, instruments, ECU, throttle bodies and sensors off another bike. Ideally one with similar bore centres so you won't have to fabricate new linkages between the throttle bodies.
You will of course, want a PC3 as well to tune it to your bike.

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post #3 of 14 Old 04-27-2009, 1:36 AM
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Re: How to put fuel injection on 900rr !?

It'd probably be worth getting the intake manifolds as well.
I'd also grab at least the bottom half of the airbox that screws onto the throttle bodies as you'll want to cut that into the bottom of the orignal airbox.
I would think the hardest part of the job will be mounting the various sensors.

I've been considering putting the FI off the new GPX250R onto an old eighties twin.

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post #4 of 14 Old 04-27-2009, 1:52 AM Thread Starter
 
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Re: How to put fuel injection on 900rr !?

So when did honda go to injection the 929? Or 954
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post #5 of 14 Old 04-27-2009, 1:55 AM
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Re: How to put fuel injection on 900rr !?

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So when did honda go to injection the 929? Or 954
2000 929 on the Blade.
2002 I think on the F4i.
Would have to research the others.
If they ever did injection on the Hornet that should bolt straight onto the old Blade engine.

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Re: How to put fuel injection on 900rr !?

use lots of duct tape
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post #7 of 14 Old 04-27-2009, 2:34 AM Thread Starter
 
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Re: How to put fuel injection on 900rr !?

OK so if I bought the throttle bodies for a 929 could I buy a kit that will just control the injection? I looked at them and im preety sure i can make them fit on there and if my air box doesent fit ill just use seperate filters
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post #8 of 14 Old 04-27-2009, 2:38 AM
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Re: How to put fuel injection on 900rr !?

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OK so if I bought the throttle bodies for a 929 could I buy a kit that will just control the injection? I looked at them and im preety sure i can make them fit on there and if my air box doesent fit ill just use seperate filters
There are aftermarket control kits but I've never tried them.
APE might do something - CBR ZONE
I doubt they'd be as straightforward or as cheap as simply swapping across an already-working setup though.

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post #9 of 14 Old 04-27-2009, 2:41 AM
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Re: How to put fuel injection on 900rr !?

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If they ever did injection on the Hornet that should bolt straight onto the old Blade engine.
2007 Honda Motorcycle Parts for CB900F 919, OEM and Aftermarket at BikeBandit.com

'07 Hornet is injected which would be by far the simplest fit.

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post #10 of 14 Old 04-27-2009, 2:46 AM Thread Starter
 
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Re: How to put fuel injection on 900rr !?

So I could hook up the ecu and throttle bodies then just hook up the injector wires, but they need to turn on when the bike turns over so do what else do I need to hook up something to the key switch?
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post #11 of 14 Old 04-27-2009, 2:53 AM
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Re: How to put fuel injection on 900rr !?

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So I could hook up the ecu and throttle bodies then just hook up the injector wires, but they need to turn on when the bike turns over so do what else do I need to hook up something to the key switch?
Not quite :-)
Why do you want to go to injection?

The ECU will take signals from five or six sensors that you will have to mount onto the engine, throttle bodies, airbox and maybe even the exhaust collector. From those it will determine how much fuel you need for the particular throttle position, revs, temperature and such.
Then it will send this signal to each injector to fire a squirt of fuel into the cylinder. It needs to know the position of the crank and/or camshaft to determine exactly when to fire the injectors. The ECU also regulates the ignition advance these days.
The ECU does the job of _all_ of the various needles, slides, jets and orifices that carburetors use to do the same job. The only part common to carburetors and throttle bodies is the throttle plate that regulates airflow.

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post #12 of 14 Old 04-27-2009, 2:23 PM Thread Starter
 
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Re: How to put fuel injection on 900rr !?

hmm sounds like i should get all the parts and do this over the next winter..haha. Well I rode my cousins 06 1000rr and it was so smooth and he races it to and i rode another 04 1000rr and i would like a new one but cant afford it soooo figure this would be cheaper, and I keep having problems with my carbs
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post #13 of 14 Old 04-27-2009, 3:07 PM
 
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Re: How to put fuel injection on 900rr !?

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hmm sounds like i should get all the parts and do this over the next winter..haha. Well I rode my cousins 06 1000rr and it was so smooth and he races it to and i rode another 04 1000rr and i would like a new one but cant afford it soooo figure this would be cheaper, and I keep having problems with my carbs
Have you considered putting keihin FCR's ?
If properly set, the throttle response will be out of this world.
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post #14 of 14 Old 04-27-2009, 6:07 PM Thread Starter
 
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Re: How to put fuel injection on 900rr !?

yea those get expensive, and I want to put a programer on it to thats another reason for the injection
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