I bought an 01 cbr929rr as a project bike that was stored outside for about a year (undercover, but still outside). Now it won't start. Looking down the throttle bodies, the injectors are firing normally, but there is no spark. Hopeing someone can point me in the right direction to figure this out. What's going on:
Turning key and kill switch on, fuel pump primes as normal, injectors fire normally when cranking over. When I first turn the key on, the dash turns on, and the FI like illuminates for approx. two seconds, then it goes out and the MIL comes on. When cranking, the LCD turns off, and the MIL goes out. Looking at some videos I believe this is all normal?
I bought the bike without an ignition switch, but I put a 1k resistor in place of the diode, and I assume that that's bypassed the anti theft successfully as it still primes?
I've tried jumping the engine stop relay, and the bank angle sensor - no change.
How many grounds are located on this bike? I've found one on the frame with 5 green wires located under the bank angle sensor, and theres the main batt ground attached to the motor. Is there any others? The wiring diagram shows that there is a separate one for the ECM someplace, but I have found nothing...
I've also disassembled and cleaned the two ground junction boxes that others have had problems with.
When I unplug either the Ignition pulse generator, or the cam sensor, I loose fuel injection, so I assume those are working properly?
I also tried attaching an analog multimeter to the coil trigger wires to read voltage as per the manual, in place of a peak voltage sensor as I don't have one. The voltage does not go up at all, let alone 100v worth (Is this correct? 100v seems really weird to me...). I think it drops to about 10 or so.
Basically what I'm left thinking is, bad ECM or bad coils. I've read a few people on here have had problems with bad coils, so I'm leaning towards that (and because I don't want to pay for a new ECM haha). What is the likleyhood of all the coils going bad if it was stored outside for year? And would bad coils make the lack of voltage on the signal wires? And is there any way to test them? I checked one and it read 1.1ohm across the signal side, but I can't find a spec for it anywhere. I also have a set of old coils from a Suzuki GS750, that fire 2 plugs at once. Would it be a bad idea to hook up one of these and see if it works that way (to test if the coils are bad)?
Also forgot to mention, a friend an I were working on it, and we swear we saw a verrrry weak spark twice. Maybe we're crazy, who knows
. Maybe it points towards something else.
Anyways, I'm thinking about going to the stealership and seeing if I can borrow a test coil or something, or just buying new ones, but I thought I'd get a second opinion before I spend a bunch of money on this.
If anyone can offer some advice, or point me in the right direction, that would be awesome. Thanks in advance.