Hi All,
I posted here last year when my bike finally died and wouldn't come back to life, I have now managed to get it up 2 flights of stairs and into my kitchen so I'm now able to work on it without weather or light issues. (happy days)
Here's the Situation - Bike ran fine for about 4 months then one day it wouldn't start before work, came home and tried again and it fired up fine ran fine for a few days then suddenly same issue wouldn't start. now it's been months and all I get is the starter motor runs but the engine won't turn over, I've dived into test everything I can think off with no luck, so think it's best to start from scratch, so I'm reaching out for any help I can get to diagnose the issue, I love this bike and would love to get it back on the road rather then stripping it for parts.
There's no spark on all 4 spark plugs.
Fuel pump primes and the injectors all fire fine
replaced the starter solenoid
HISS key light goes out after a couple secs
tested all the fuses and all seams good there
New battery and fully charged for 24h.
Thought it might be the "Pink Wire" HISS issue as I'm getting a varying voltage going to the ECU and only 5v going in to the but I may be testing it wrong.
I'm good to start over totally from scratch if anyone is willing to help me as I'm at my wits end
I've got the Haynes workshop manual for it but having dyslexia makes it tricky for me to stay on track especially when it comes to electrical issues I've bought quitea lot tools to test stuff like peak voltage tester and so on and will buy what ever else is needed.

Side Note: if anyone on here lives in Edinburgh or near by that owns an 2002 CBR F Sport that would be willing to test out my ECUs, (yep I bought a spare) on their bike I'd be extremely grateful

Thanks in advance for any help or guidance.
Scott

 

How is the main and ignition fuses? How about the voltage of the battery? Spark plugs I’ve have had an issue with brand new copper and didn’t use for a few seasons and replaced with Iridium plugs and never had a spark issue again. Just the scenario was in not necessary had to do with iridium plugs.

 

I've just done a voltage test on all the fuses, and I'm reading full battery voltage on both sides of every fuse on the bike, I had the same thought about the spark plugs and will be ordering iridium ones on pay day. As for the battery voltage I've just put it on charge as it's drained a little due to testing things last few days will post, (key off) voltage and cranking voltage tomorrow at some point. Thanks

 

Have you tested the Ignition Pulse Generator Crank Position Sensor? If this sensor fails the ECM has no timing reference and will not signal the coils to send a spark.

 

Yeah the one on the bike was faulty, so I changed it out for a new one, I was sooo excited, thinking I had found the issue but still no luck, I'm really hoping that I got the right one. In fact to ease my mind I'll search my eBay orders and see if I can find the part number from it, and I'll run a test on it next chance I get. There may have been two issues and I fixed only one of them 😂
EDIT: it was the cam pulse generator that was faulty and I replaced, I'll test both of these hopefully tomorrow after work