first of all i would like to thank you for viewing this post, i understand that my post will take up approximately 20 minutes or more of your time. i will lay out everything i have heard and in detail describe everything i have done to solve this issue, from start to finish.

i am the second owner of a 2007 Honda CBR600RR with approximately 8503 miles, never dumped and fully after market in the amount of approximately 3000 dollars. with that being said, i love my honda and i will never purchase anything other than what honda motors has to offer, they make the best sounding and performance engines from marine to motorcycles, hands down in my opinion.

so where to begin, the motorcycle ran flawlessly since i purchased it in fall of 2008, i maintained oil changes, premium 91 fuel only, stabilizer for winters with trickle charging for the battery, radiator fluid swaps with correct 1:1 ratio, oil filter changes, tires, etc etc. i never beat on her and i never rode like i stole it. my problem began last fall when i came home from a deployment, it was stored for the winter of 09/10 and i tried to start the bike in late august of 2010, the battery was dead, not a big deal just a bad battery, and so was my suv, dead battery, i had to choose to take the suv considering i worked in the military and needed a solid vehicle for winter, and left my bike to sit for the whole winter of 10/11 until late march when i went back to pick it up from my storage unit since i moved back home. obviously the battery was dead.

i was forced into a bad position, my storage shed was up on its lease the day i went to pick up the motorcycle, so i was in a pinch, i purchased a battery "not the same type, but a motorcycle battery nonetheless" to just move it from point A to point B, the battery failed to power the motorcycle up, and quickly died, so yes i was a fool and made the biggest "no no" of jumping a bike, yes i used a car, and yes i know fully well what could have went bad, so maybe there is an issue with that, but after stripping the bike down, nothing is melted, fried, fuses are solid, continuity in the wiring, etc etc, with the jump start, the bike would turn over for about 1-2 seconds and quickly die, after a few tries, i realized it wasnt going to work, so i immediately took it over to a friends house via trailer and stored for the past few weeks.

this is where i did all the work to it, and this is the most detailed i can make it, first step we did was just an obvious one, we siphoned out all the bad fuel, and filled up the tank with new premium 91 fuel and "complete fuel system cleaner," with a brand new fully charged battery, this time, the bike would not start up at all. not even turned over for a second, so what we decided next to do, was to check the spark plugs, possibly there could have been an issue, but it was unlikely considering plugs last longer than 8500 miles. we took off the radiator, etc etc, to get to the plugs, pulled them off, the plugs had some burn on them so i went to check to see if they had spark, sure enough they did, so we cleaned them off, correctly gapped them to the cbrs service manual specs of (.31 - .35) on all four and repositioned them inside the chambers. attemped to fire the bike, and nothing happened, so we knew we had good plugs, no fuel, so from start to finish we systematically took apart the whole fuel line, the pump works 100%, we checked the fuel rail with the connections to the 8 fuel injectors (4 primary lower unit, 4 secondary upper unit) fuel is at the fuel injectors.

now we are at, possibly bad fuel injectors or computer relay, something that involves mechanical, or electrical use (the 07 cbr 600rr uses PGM-FI, programmed fuel injection, essentially it has a small plastic fuel injector with 2 terminals for the wiring harness). so as such, we removed 1 secondary fuel injector, and 1 primary fuel injector. the secondary fuel injector had obvious "brown debris" on it, hence they only activate at 7000 rpms or so to add extra fuel into the combustion chamber, since it barely started they werent used. the primary fuel injector was clean as a whistle, shiny, no debris at all "could not see inside the injector itself obviously" but it looked in pristine condition. so our next thought was to attempt to soak the injectors in cleaner, we actually got lucky and ran into a mechanic at the auto store who works on similar bikes and specifically worked on the exact same injectors i had, i handed it to him, he looked at it, and without hesitation he claimed these injectors will "never fail, you could put them by the titanic for 100 years, pull them up, install them and they would work" exact quote. it seemed he did know what he was talking about by other things we asked him. so we decided with his word, they were fine, no cleaning or anything was done, we went back to the motorcycle, cleaned out the air filter back to near factory as we could, re installed the air filter, and dropped some fuel on top of the four pistons, turned the throttle, it dumped into the chamber, fired the bike, it started again, and died. again, no fuel is getting into the chamber to keep the bike running. i had a cobra fi2000 digital fuel processor installed, thought maybe it was junk, completely removed it and set the injectors back to the factory install setting, via "original harness" rinse and repeat, same thing, fuel is getting to the injectors, spark plugs work great, no fuel between the spark plugs and the injectors, possible computer malfunction, at this point i am not sure what the next step is, i do not have a computer to hook up to the motorcycle, to run a diagnostic, "the 07 has a self diagnostic on ignition, but isnt reading anything on the MIL (malfunctuion indicator lamp) to diagnose an issue."

at this point, i am not sure what is next to do, i am handy with a wrench, so is my friend who worked on it with me, but we are clueless. we have the primary recipe for an engine, ignition, fuel, air, exhaust, spark, even back pressure off the tail exhaust, any help would be great, if its necessary and you dont mind, if you have an idea, please let me know one way or another, thank you for your time

Sgt J.D.

 

Hmm! Strange one that! You say you have fuel, sparks and I assume a fully charged battery and good compression, so it should start! One problem I had when I first purchased my 2002 F1 was that it wouldn't start if the battery wasn't charged to at least 13.5 volts and ideally 14.0 volts. It turned over seemingly fast enough, but just wouldn't fire if it wasn't fully charged to the above voltages. The CBRs seem to need a good rate of starting knots to fire first time. Try this in case the engine is flooded. Open the throttle slowly to the full position. Turn the engine over for five seconds or so. It may fire, but if not stop after the five seconds, then try to start as normal with a closed throttle. The only other thing I can suggest is that the fuel pressure regulator may be faulty. There are so many things that could be wrong with a fuel injected engine and I'm not fully conversant with the system. I hope someone else gets in touch to help sort this out for you mate.

 

Just had another thought. Is it really cold where you live? I was thinking that you could drain the water from the system and re-fill with hot water to get the system and the engine warm before trying to start. Where I used to live in Manchester, if it was very cold my car wouldn't start and I used to pour hot water into the radiator and the heat from it would warm the engine sufficient enough to get it started. Also, although your bike has very little miles on it, it might be worth checking the valve clearances as if they are too small the valves won't close properly and you will have low compression. A compression gauge test will obviously show this up quicker than checking the valve clearances, if you or your friend have one. Intriguing me is this!

 

i live in moderate temperatures, that wouldnt be the issue here, i will try to use the slow throttle tactic you mentioned, maybe it will go, but i also have heard of engines not turning over if certain things are unplugged, dirty "air filter" etc etc. i have a totally charged battery, the only issue i am confused on, is like i said, i have all the components to start, but when i checked the plugs after a few attempts to start the cycle, they were dry, so the fuel injectors are not pushing fuel, which could be 1 of many highly pricey things. im trying to do everything i can myself to save some cash, but im just mind boggled and out of ideas! compression check and slow throttle will be the next step as well as hooking up a computer to the cpu if i can find one, but mostly this is all "mechanics tools" so ill have to find some for rent! ill keep you posted what i find out, cause its rediculous! thanks for your time and help!

 

You think you might have a bad/stuck open fuel pressure regulator? ... fuel injectors can't inject fuel that's not under a pretty good amount of pressure ... did yaw even check that? .... just an idea ... and I if I was you, I would think about maybe pulling the injectors again and spraying carb cleaner through em again anyway just for the hell of it ... the mechanic might be right about them never "breaking" or "failing" but there's not an injector on the planet that can't get clogged up from the inside out ...

 

also check your starter selionoid..prob spelled wrong but you get the point lol