PorterBespoke
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| posted on 17/1/15 at 02:04 AM |
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99 Hayabusa no spark.
Hi all, I've had a good search through the forum and can't find what I'm after - I'm doing the wiring a '99 Hayabusa
engine in a rally car, I have put the necessary resistors in (150 ohm in ignition, 68k ohm in TOS, am running a clutch switch and have jumped the side
stand switch etc.) Everything lights up as it should, the fuel pump primes, and the engine turns over, but I am not getting any spark.
Are there any earth cables that I could be missing? Or anything else obvious that could be preventing it from sparking? I am sitting at 13v,
dropping to 12.1 when cranking.
Also, I've just checked resistance across the 150 ohm resistor, and it is fine when I bench test it prior to installation, but when installed
its resistance drops to 131 ohms. Any ideas on what might be causing this? And whether this may be the issue (the resistors are 1/2 watt).
Any other ideas would be greatly appreciated.
Cheers,
Eddie
ps. Engine is a 99 gen 1 'busa running an extreme engines dry sump kit.
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CRAIGR
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| posted on 17/1/15 at 07:47 AM |
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Cosmick on here will be your man to ask. Having said that does it have a "tilt" switch in the loom that would cut out engine if bike was
on its side as on my r1 I had to silicone the switch as if in the upright position.
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PorterBespoke
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| posted on 17/1/15 at 07:51 AM |
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Thanks, yeah I've put a resistor in to blank the tip over sensor. I've tried to keep the loom as original as possible but that might be
the problem...doing my head in!
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CRAIGR
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| posted on 17/1/15 at 07:59 AM |
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U2u Cosmick as he has a massive knowledge of busa wiring in kits, race cars etc . He's a good guy and will be happy to help i'm sure.
[Edited on 17/1/15 by CRAIGR]
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PorterBespoke
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| posted on 17/1/15 at 08:03 AM |
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Will do, cheers!
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wylliezx9r
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| posted on 17/1/15 at 08:46 AM |
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The reason the resistor is changing value in circuit is because it will be in parallel with other resistances and therefore will semmingly reduce in
value (basic electrical theory). The only true way to measure a resistor is out of circuit like you already have.
I spent a lot of money on booze, birds and fast cars. The rest I just squandered.
George Best
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minitici
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| posted on 17/1/15 at 10:07 AM |
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I presume that you are not running the standard Busa key switch?
If you are running the standard key switch you would not require the resistor going to the ECU.
Normally use a 100 Ohm resistor if the key switch is removed.
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