I have a 2005 CBR600RR - it started sputtering during acceleration and different high RPMs lately. Thought it could be battery connection etc and just had the engine replaced with new plugs. I fueled it up with more gas thinking some water got in the tank and it started behaving a little better - rode to the next county up and chilled at the beach, went to start the bike. Just cranked and cranked and cranked, no turn over or fire up. Ripped it apart in the parking lot - all grounds, relays, connections and fuses good. Nothing. Dropped it off at my buddy’s shop., he said he dumped all the fuel out and it started - rode it back to work, rode it home - changed the oil in my truck, went to start the bike - NOTHING AGAIN’!!! Started ripping it apart, dumped all the fuel out of the tank again, added LUCAS fuel treatment- didn’t start .. gave up.. woke up next morning- fired right up - put everything back together -
Rode it to church today, no sputter or anything - felt fine- thought I finally got water out - got out of worship.. won’t start - WTF IS GOING ON!!!
Bad coils!?? Do coils act intermittent like that ? Is there still water in there somewhere settling after I ride that messes this thing up!!! I’m frustrated as I keep getting stranded
Yes, sorry- key on, gauges and rpm needle do their thing, run switch on, pump primes normally, the fuel pump is good- pushing 55 psi - and low and behold.. the bike started up again after I walked around the church and made some calls and went back to give it one more go- it started right up but sputtered pretty bad at first on way home - idk what else it could be other than water ??? The sputtering went away after a couple miles - maybe I just need to throw more additive and high octane in there and let it idle in the driveway or stay close to home and run a couple tanks through it???
also either have the discussion here, or pm me, doing both is a waste of both of our time. i won't respond to any more pms from you if you're going to just post it here anyway
I’m new to being a member on this forum and the navigation isn’t user friendly right away - my bad -
How didn’t I answer your question? Then idk what you mean my normal starting sequence. - power on- everything normal, run switch on, pump primes and everything normal- just when I go to start, it doesn’t run - just cranks and cranks (idk what terminology is used ) it cranks but won’t start - it won’t turn over, fire up or whatever is used to describe it -
It was described in my first post and again in my reply - everything normal- it just cranks and cranks and cranks and won’t fire up- This isn’t helping lol..
nowhere in your original post do you describe the normal starting sequence. 99% of no starts posted on this group are because the FI system isn't powering up consistently. shame on me for thinking you're probably in the 99% right?! shame on me.
if everything primes and is ready to go, hold the throttle wide open and see if it sputters. you may have a leaking injector(s) and the engine is flooding. holding the throttle wide open shuts the injectors off. chances are you're just flooding it over and over.
is there a power commander fitted? if it's a PC3 with the buttons on it, plug in your laptop and reset button values.
i'm more than happy to not help you at alll honestly. i don't owe you anything, but you can rest assured there's nobody else on this website who will give you any time at all. so consider that.
You asked me what happens when it doesn’t start - I described it - relax with your ego plz- I posted on here because it’s sunday and I don’t want to bother my other rocket mechanics - I’m a jet mechanic bro, I know my jets and their systems like you know bikes - I’m not familiar with it all just yet man- I didn’t know things like a WOT shuts off injectors during start or how that works -
Nobody owes anybody anything on here lol we are here to help out fellow riders in hopes they can solve things themselves or with help from here -
Anyway - next time it doesn’t start, I’ll WOT and see what that does - I don’t have a power commander fitted..
well when you've spent 5 years answering hundreds of these exact threads you can tell me to relax. this forum is literally never ending pages of these exact posts.
if you want help you need to give as much info as possible. your original post never once mentioned pump priming, efi indication, or anything of the sort. your bike will crank forever and ever without the ecu so much as powered up, and that's typically the problem in no-starts.
It hesitated on start up, did a WOT start up and it started up with no hesitation- I really appreciate your help- it’s epic..
So, into my next step in fixing the issue- is there a way to see if my injector(s) are leaking or dumping too much fuel ?? Should I replace all injectors or could it possibly be something else faulty? Once again, I appreciate it- What you’re doing on here is what I do on airframe and powerplant (A&P) forums for mechanics who can’t fix avionics or mechanical issues on aircraft and there’s wayyyy more to it than bikes lol-
Okay I’ll try that - because I just went to start it and it won’t start again- even with WOT- so when I open air box , prime it a bunch of times- I’m looking forrrr? Flooding or a spray. ? Idk what’s normal
You're looking for fuel when there shouldn't be any
If there is no fuel in the cylinders and you do the WOT thing of course it's not going to start. It's only for unflooding an engine. Not for generally starting one.
Leaky injectors aren't going to cause a problem in 2 minutes.
Roger that - well, it’s not starting again- I’ve opened air box and primed a bunch of times and nothing from injectors, all dry minus some tiny residual stuff ..
This type of intermittency makes me feel it’s electrical or something I’m not sure - things are untouched other than the movement of a ride but even just sitting there- it’ll go back to not starting.. can bad coils be this intermittent if bad at all? Can I try push starting it or spraying starter fluid in air box - idk what that would do- or just drop the thing off at a shop the next time it starts and let one of my guys diagnose everything and have a big bill but no more headaches -
sure does, every time .. the EFI system booting is pretty much the pump priming every time correct ? Because yes, toggle the kill switch and it primes every time
then you need to be looking at all your connectors. if the pump primes then all systems are go, if they aren't going then you have a wiring issue.
get a wire brush and a tube of dielectric grease. have fun.
edit, it's worth having a peak at the crank and cam position sensors as the bike needs those inputs to fire. intermittent crank signals can cause rough operating as well.
Lol touché - I’m just studying for my next rating to become an inspector and work 12 hours 6 days a week and this bike is a mad max nightmare at points - just becoming a time-water
it DID fire back up, rpms are a bit jumpy and rode it around my neighborhood cul-de-sac area and it was jumpy.. plus, aircraft MM’s are extremely specific and much better than this type of troubleshooting -
Found a faulty/crap wire at a sensor right behind the regulator - circular - that could be the problem! - I can’t find a diagram on this bike anywhere so idk what it’s called but isn’t the cam/crank sensor given how you described where they were
I agree with tary preisser, genuine emotional rollercoster from start to finish.
Just a thought, you dont have an alarm/immobiliser on the bike? I had issues with a recall on the Datatool S4 C1 Red that caused imtermittent starting problems on mine.
I do not ? - other than that faulty cam sensor idk what else it could be .. it was left untouched over night and also in my church parking lot and then fired up- lol windy? Just happened find a better connection down there and was sputtering from just riding then get stuck in a better position .. no idea .. hard to find parts on hand anywhere so I ordered one in case my old engine doesn’t have it -
Honda makes good sensors , they fail slowly......and generally give you enough time to make it to the repair stop.....
If you suspect loose connects, clean them and monitor performance?
PS... maybe, calm down?
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