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Old 06-24-2012, 11:30 AM   #1
Mr.Irrelevant
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Need help getting the F4i going and back on the Road. League City here

Morning everyone, Daryl here and I have gone as far as I can go with my bike and need some help. I'm in League City. Alittle background, I picked this bike up in a trade for an old S10 I didn't need anymore. The bike was a 2002 Honda CBR600 F4i. The guy said the ECU went bad and he had it at his friends to fix. Friend tore the bike apart and had the thing in pieces including the harness out. I accepted the trade and he dropped it off here in pieces. I got the technical service manual and started piecing the bike back together. There are a few plugs I haven't been able to find but I think all is plugged in enough for it to turn over, crank and hand over to a shop to get back to par you know. I found a used AMA racing ECU that plugged in, also bought a new Honda fuel pressure regulator although it hasn't come in yet as well as a new battery. I checked all of the fluids and they are good. I tried to crank the bike and it spins over but doesn't sound like it's getting any fire. I don't know if you are suppose to hear the electric fuel pump kick in but I don't. I also don't see any codes that come up on the info screen on the bike. I can make a video of me trying to crank it and send it too you to see what you may think. I have had this bike going on week number two. I have come along way from where it initially was and now want to get it back to the point where it is running good and I can start to add performance items. Any suggestions or comments will be helpful and appreciated. Thanks to everyone in advance.
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Old 06-24-2012, 11:57 AM   #2
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Fuel pump is supposed to prime when u turn key/flip switch. Check spark the manual way LOL. Grab the coil, stick a plug on it and see if u get hit. While ur at it compression check?
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Old 06-24-2012, 02:30 PM   #3
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Well the gauges are working so I'm guessing the ECU is working properly. Only check light that came up was needing more fluid. I'm not hearing the pump prime at all. I'm not getting spark so start looking at replacing coils?
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Old 06-24-2012, 02:53 PM   #4
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Have you checked the fuses?
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Old 06-24-2012, 05:31 PM   #5
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Quote:
Originally Posted by Mr.Irrelevant View Post
Morning everyone, Daryl here and I have gone as far as I can go with my bike and need some help. I'm in League City. Alittle background, I picked this bike up in a trade for an old S10 I didn't need anymore. The bike was a 2002 Honda CBR600 F4i. The guy said the ECU went bad and he had it at his friends to fix. Friend tore the bike apart and had the thing in pieces including the harness out. I accepted the trade and he dropped it off here in pieces. I got the technical service manual and started piecing the bike back together. There are a few plugs I haven't been able to find but I think all is plugged in enough for it to turn over, crank and hand over to a shop to get back to par you know. I found a used AMA racing ECU that plugged in, also bought a new Honda fuel pressure regulator although it hasn't come in yet as well as a new battery. I checked all of the fluids and they are good. I tried to crank the bike and it spins over but doesn't sound like it's getting any fire. I don't know if you are suppose to hear the electric fuel pump kick in but I don't. I also don't see any codes that come up on the info screen on the bike. I can make a video of me trying to crank it and send it too you to see what you may think. I have had this bike going on week number two. I have come along way from where it initially was and now want to get it back to the point where it is running good and I can start to add performance items. Any suggestions or comments will be helpful and appreciated. Thanks to everyone in advance.
plug up EVERYTHING. somethings may not be necessary and some things are. so without knowing your knowledge on mechanical/electrical and how it all works i'll assume that u may have left out an important sensor. cam/crank and maybe others.
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Old 06-24-2012, 05:35 PM   #6
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Sounds like your bank angle sensor isn't plugged in.
You can by pass it fairly easily, just jump the red/white wire to the green wire on the main harness. The bank able senor is mounted inside of the upper fairing, it's a small horseshoe shaped black box with 3 wires going into it.
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Old 06-24-2012, 05:51 PM   #7
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Ah ok, I will search on the upper fairing and see if it is connected. I'm also replacing all the fuses on the bike, I didn't do that as well as I noticed one of the relays in the back had a crack in it and was wrapped in electrical tape. I believe it was the engine stop relay but it could be the fuel cut off relay.
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Old 06-24-2012, 06:02 PM   #8
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Quote:
Originally Posted by Patrick View Post
Sounds like your bank angle sensor isn't plugged in.
You can by pass it fairly easily, just jump the red/white wire to the green wire on the main harness. The bank able senor is mounted inside of the upper fairing, it's a small horseshoe shaped black box with 3 wires going into it.
Just checked and the Bank Angle Sensor is connected. It is right behind the windscreen and the combination meter correct? Does that sensor go bad?
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Old 06-24-2012, 06:40 PM   #9
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Quote:
Originally Posted by mx6er View Post
plug up EVERYTHING. somethings may not be necessary and some things are. so without knowing your knowledge on mechanical/electrical and how it all works i'll assume that u may have left out an important sensor. cam/crank and maybe others.
I'm a novice when it come to working on motorcycles. I have 20 years of working on high performance cars. The four plugs that I don't have plugged in are: one going to the EVAP Canister, one plug buy the ECU and Fuel Cut off relay /Engine cut off relay and is used for a jumper I believe. The third and 4 plugs look exactly the same but one is by the upper fairing and the other is by the south bolt of the fuel tank. They are "Owl" eye shaped plugs with two prongs in them.
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Old 06-24-2012, 08:13 PM   #10
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There is a fuel pump relay and an engine kill relay.
The engine kill relay provides power for the fuel pump relay to cycle.
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Old 06-24-2012, 08:28 PM   #11
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Those were the two I am thinking might be bad. I unplugged one to see what I need to order. For some reason when I unplugged it, my time on my combination meter went off and all of the gauge work didn't come on.
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Old 06-25-2012, 07:35 AM   #12
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Relays ordered, any ideas on why the combination meter isn't working? The neutral light comes on but nothing else is functioning. It did that when I first installed the battery but the following day, the time popped up working and the tachometer worked.
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