Davegtst
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| posted on 30/9/10 at 06:19 PM |
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Hayabusa wiring K1
Me again with more questions. If i remove the complete radiator fan relay, motor plug, and switch from the loom is it going to cause any problems?
As far as i can see on the wiring diagram it's not ecu controlled but coontrolled by a switch which i guess is on the rad itself. It's a
late 2001 K1 btw.
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cosmick
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| posted on 30/9/10 at 06:33 PM |
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No Problem will show on the ECU. You are correct, the fan is switched by the Temp sender in the radiator. My question is why are you removing it. I
presume you are going to have a fan. What better way to control it than by a radiator or thermostat operated switch. By the way, the standard fan
switch for Suzuki will not come on until 105 degrees C. and switch off at 99 degrees C
If it can't be fixed with a hammer then its probably an electrical problem.
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Davegtst
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| posted on 30/9/10 at 08:34 PM |
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I've removed it because i'm going to use a separate circuit with a adjustable fan switch and override. I will be able to make the wiring
loom alot more uncluttered this way. I've already stripped out all of the lights, indicators and horn out of the loom.
My next question is. Can i remove the vacuum solenoid and wiring for the PAIRS device? I won't be using the PAIRS so there is no need for the
solenoid but it is conected to the ecu.
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cosmick
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| posted on 30/9/10 at 08:41 PM |
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Yes. All it does is switch on or off. you can safely remove it.
If it can't be fixed with a hammer then its probably an electrical problem.
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Davegtst
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| posted on 30/9/10 at 08:50 PM |
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Ok it's gone then. Will it bring up any fault codes though? I guess it can't as it's an output from the ecu.
[Edited on 30/9/10 by Davegtst]
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cosmick
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| posted on 30/9/10 at 09:23 PM |
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NO
If it can't be fixed with a hammer then its probably an electrical problem.
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Davegtst
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| posted on 30/9/10 at 09:30 PM |
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Thanks cosmick. I'll probably have a few more questions shortly.
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dilley
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| posted on 1/10/10 at 08:19 AM |
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I'm keeping an eye on this one!! I am currently building my busa loom!
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Davegtst
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| posted on 8/10/10 at 11:40 AM |
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Ok next question. With the clutch switch i know you have to cut the black/yellow at the starter relay and leave the other end. What do i do with the
wire to the clutch switch itself? My loom didn't come with a clutch switch fitted. I guess i can put either a switch on the dash or on the
pedal but would rather not. Is my ecu affected being a 2001 model?
[Edited on 8/10/10 by Davegtst]
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cosmick
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| posted on 8/10/10 at 12:39 PM |
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OK, as far as I know, the 2001 engine will not need the Black/Yellow wire to see an earth to allow the engine to rev to 11000.
So what you need to do is cut the Black/Yellow wire a short distance from the starter relay. The Black/Yellow wire that remains connected to the
starter relay needs to go to earth. This can either be done by soldering it to any Black/White wire or running it to a suitable earth. This will make
the starter relay work without the need to operate a clutch switch.
The other part of the wire that remains in the harness can simply be insulated to prevent an earth going to the ECU. There is no need to fit a clutch
switch doing the above.
If however you wanted a clutch switch then this could either be in the form of a proper switch to the pedal or a button on the dash. The button would
need to be pressed each time you start the engine and of course no modification to the loom. Hope this helps.
If it can't be fixed with a hammer then its probably an electrical problem.
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Davegtst
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| posted on 8/10/10 at 05:11 PM |
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Thanks again. Been reading lots about the clutch switch, everyone says the later bikes needed to see the signal but no-one says what year
'later' bikes are.
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BobM
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| posted on 9/10/10 at 08:08 AM |
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quote:
Originally posted by cosmick
If however you wanted a clutch switch then this could either be in the form of a proper switch to the pedal or a button on the dash. The button would
need to be pressed each time you start the engine and of course no modification to the loom. Hope this helps.
What I gather others have done
is wire the clutch switch via a relay from the starter button, so when you press the starter it connects clutch switch to earth making the ECU think
the clutch is in. I plan to look into this on mine.
Not very Locost but very BEC 
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