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CBR650F Bike turns over, fuel pump primes but has no spark so wont start - help please?

JJ_CBR650F

2016
CBR650F ABS
May 7, 2019
Suffolk, England
Riding Since
2000
Same ecu for cb and cbr... Shame it was the a2 variety on that listing.

Shame your ecu got killed :(

J
replacement ECU got his spark back instantly, no messing about with flooded procedures etc just fired straight into life so my bike lives :) we now need to sort the key/HISS situation then the halo can go back on and i can get out on him, so be careful with HM Pro quick shifters, they can fatally upset your ECM!
 

JJ_CBR650F

2016
CBR650F ABS
May 7, 2019
Suffolk, England
Riding Since
2000
Good to know! No wonder we couldn't get to the bottom of it.

If I ever want a QS it'll be the Dynotech one as I have a PCV fitted, so less risky!

J
it was a Christmas present that i'd already said i didn't want, as i wasn't prepared to risk it messing my baby up, so he got told to get rid of it pronto and never to buy my bike parts i haven't said i want again!
 

shark650

2021
CB650R ABS
Apr 10, 2021
Lisbon
replacement ECU got his spark back instantly, no messing about with flooded procedures etc just fired straight into life so my bike lives :) we now need to sort the key/HISS situation then the halo can go back on and i can get out on him, so be careful with HM Pro quick shifters, they can fatally upset your ECM!
quickshift do not interfere with ecm! must be other problem
 

JJ_CBR650F

2016
CBR650F ABS
May 7, 2019
Suffolk, England
Riding Since
2000
Any idea what caused the ECM to die? Odd that it took a crash when it did.
Honda master tech said it's quite common that non-honda QS that connect to the coil packs can spike the ECM - the connection from the ECM to Coils is 2 way so won't be trying that again as i've yet to get it back from Honda as we couldn't get the keys to code to the donor ECM as it was locked to the donor bike so needed Honda to sort it.
 

JJ_CBR650F

2016
CBR650F ABS
May 7, 2019
Suffolk, England
Riding Since
2000
quickshift do not interfere with ecm! must be other problem
you go and argue with a Honda MC master tech mate! He said ECMs get spiked by non Honda kit being connected to the coils it's quite common. My bike is still with Honda getting sorted out all because of the bloody QS as theres nothing else wrong with it.
 
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