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Discussion Starter · #1 ·
I recently stripped down my '01 R6 in order to trouble shoot an ignition problem. I found that the throtle position sensor was giving off bad readings so I cleaned it in Acetone. Anyway, so i pop the sensor back on and adjust it, then hook up all the other conectors i unhooked; air box on, fuel tank, and all that. I crank it and it sounds all right. But then i rev it up to 6 thousand twice and on the second time the engine turns off! WTF? The engine will still turn over till im tired of turning it over, but there is no spark. I tested all the coils and they are all at 10.5k ohms to the chassis and the individual wires all check out properly to the cdi unit. The pickup coil reads ok(though I have no idea how to check if the signal is being sent). The cutoff relay tests bad but it tested bad before I cranked it so im not sure the manual has the right test info, and I can here it click open and shut when i raise/lower and pull/release the kickstand/clutch. Not to mention I can turn the engine over. This has me stumped, so I was hoping someone here had a clue as to why my bike won't give me spark all of a sudden.
 

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Discussion Starter · #5 ·
Unfortunately its not a fuel problem. There is no spark at the coils. I ran the battery dead twice testing everything and the whole time i only saw a spark on like 4 outa 30 times i turned the engine over. Is it possible for the cutoff relay to allow the engine to turn over but keep the cdi from firing the plugs? If not I think it may just be the cdi gone kaput.
 

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The starting circit cut-off relay has a few different functions and components. There are 2 relays and a few diodes that are in the same housing. Just because you hear the relay clicking that controls the starter relay dosen't mean the other relay or diodes aren't shot.

That said, check for good continuity between the Be/Y and Be/B wires when you turn the ing. switch on, before you trash the CDI. Also, does your neutral light work?

I'm working off of a 99-00 print, but I'm pretty sure the safety circut stuff is the same with the 01-02 model also.
 

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Discussion Starter · #9 ·
Is Be/B beige black or what? One thing thats been diff while working on this is figuring out their color codes. Is there a table somewhere showing the codes and corresponding colors? And what would be the best way to jump this wire to ground without fucking things up?
 
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