Any Idea's! Honda CB1000R Bad Starting

[@gss6341]

I guarantee you that it is sensor CKP, CKP sensor voltage spike 20°C 0,7 V minimum! Disconnect the red plug from the sensor on the right side of the motorcycle, put the multimeter on 2 thousand millivolts alternating current, put the multimeter cable on the positive on the two-color cable and negative on the other, try to start and the value must be at least 0 .7 V, it is in the motorcycle service manual, if the value is lower it will be necessary to change it, you will need to drain the oil and remove the right side cover, to completely remove the cable you will need to remove the air box and other plugs It's a lot of work but it's worth the effort, take the opportunity to change the starter motor brushes, the bike will be as good as new. greetings from Brazil!!

[@Motovibes91]

I had a similar issue with my 2009 model and replaced the battery(agm), nearly all the sensors(including the cpk sensor), relays and 3way diode etc. I also checked the clutch, side stand and neutral switch and also fitted a new starter / kill switch button, they are all working correctly. The charging system was working correctly also, BUT STILL WOULDNT FIRE. Last week I decided to replace the battery with a lithium one (so twice the starting power (cca). NOW IT ALWAYS STARTS FIRST CRANK. I think the stock battery of the CB1000R doesn't have enough juice to power the injectors, sparks, ecu and the starter all at the same time. That's what you often hear. I will monitor it for a couple weeks but it looks promising!

[@davespellen1596]

SECOND EVERY WORD - I ALMOST WENT MENTAL. BUT A NEW BATTERY.

[@azzedineelmasbahi7178]

Me too. But when I’ve changed the battery with a new one. Problème was resolved

[@thesouth50]

Glad you found it. I have the same issue with mine. Guess I'll buy a new battery soon

[@olpallix]

hi all, with me, the power bank to jump start the battery never faults starting the bike,and starts like a rocket on steroids, i bought a lithium and yes it is better but I still have issues. could it be spark plugs or coils? because it cant really be the battery because these bikes run fine when new, so obviously something is weakening over the years and need to find what specifically, new strong battery only hides the failing of other faulty parts by boosting them with extra strong power. also i found that sometimes rocking the bike in gear and trying to start again helps,or maybe just my imagination. but in this video the it seems to be cranking fine so how can it be the battery? thats my 2 pence worth

[@warwickrailton619]

Replaced my battery last week on my 2009 CB1000r. Problem solved.

[@ShakeelAhmed-zd3pq]

Dear Sir, This is just simple. Starting absorbs all power during cranking. You can check it by feeding power to ignition system from a separate source. this source must not connects to starting motor. Hope this will remove fault

[@hartatak22]

hopefully you got it figured by now. Crank sensor is a good thought. On yammis I see when guys crash the hollow dowel pins get a notch in them holding the cover off center moving the sensor further from the trigger. Noticably longer cranking before catches and engine starts. But I think on the hondas they use solid dowels so they tend to crack the case instead of offsetting cover. Cheers

[@hectyre]

I'm going with crank sensor, you said it right after I thought it. Broken/weak wire to it?

[@esteenhof]

I got the same problem with my cb1000 r . I found out that when the sidestand is flapped in, the start will get better ( no problems at all ).

[@glenstandring6927]

Well when mine decided to act the same as this I knew it was time for a new battery, Sorted.

[@davidroux4900]

On mine I found if you turn the ignition on and you listen carefully and you don't hear the fuel pump, it certainly won't start. You just take the key out of the ignition and insert it into the ignition again and then you hear the fuel pump for like 2 sec and guaranteed it will start, seems like the transponder is not reading the key intermittently. Unfortually i haven't got the spare key when i bought the bike to prove my theory.

[@JR-ed8fs]

if im not mistaken, this model uses information from the map sensor instead of having a cam position sensor, so maybe the problem is somewhere around the map sensor

[@T7rider]

I would look for a loose, dirty or corroded connection. Let us know when you find the problem.

[@-DC-]

did you ever get to the bottom of this Jim?

[@przemsonm224]

The reason is too low voltage, if you have a good battery, clean the ground contacts (left side of the fuel tank) and remove the starter, clean the gaps on the commutator, align the commutator and pour out the powder. The starter is 100% problematic if the battery is new and the ground contacts are clean. Unfortunately, removing the starter is shit. The motorcycle did not start on the hot starter, short circuits on it + temperature lowered the voltage by a few millivolts

[@SuperbikeSurgeryTV]

My first thoughts but not in this case. Starter current and voltage drop at ECU, injectors and coils all fine.

[@geraldburmeister9637]

I am probably way off here but I've owned several Hondas that have issues similar to this and everyone of them would start after working the kill switch off and on 20 or 30 times to clean the contacts. I always shut my bikes off with the key to prevent me leaving the key on and killing the battery. My bikes sit out in the rain when I'm at work and get rained on occasionally. I even had a 83 cb1000c that would die going down the road and I could work the kill switch and it would start right back up and run for months again. To me it seems those switches get dirty and cause issues. It's cheap and easy for anyone to try.

[@richardt.953]

"Kill Switch" ????? Hahahahaha! You are way off !

[@kyleburgess2109]

did you resolve the problem? I have brought my bike to a dealer and they cant figure out the problem. I am trouble shooting it now. Any help would be greatly appreciated!

[@SuperbikeSurgeryTV]

I didn't get to finish my diagnosis as the customer needed it back. Sorry I can't be more helpful. If you do find a solution please share it with the world. It seems this is a problem a lot of people are having.

[@douglas_martins]

Olá James, aparentemente seu problema parece ser o sensor de rotação do motor ou CKP, tivemos problemas similares e o culpado pelo mau funcionamento do motor e dificuldade de partida era o mesmo. Não deixe de postar vídeos, são realmente bons, um grande abraço!!!

[@Tech-49]

meteorologicos manana - scorchio !

[@Miguel-cy1gh]

Eso también lo hemos mirado, y no

[@ristobarbulovski7793]

Dear James, you could try to replicate the cranking but this time with external power source connected with motorcycle battery. Perhaps the voltage drop when cranking rises erratic ECU misbehavior. Regards, Risto.....

[@hethel8]

I’ve had three of these and they all did this. The starter motor has worn out and expanded slightly. When hot particularly, the starter does not turn as freely as it should. One bike would only start once it had cooled off completely. New starter and battery is the answer.

[@olpallix]

@@hethel8 I think i agree with you on the starter, the battery only helps the starter motor work with more oomph hence why people point to ne battery, like i said before, a power pack starts the beast easy because it has more power, its like using a battery chopsaw with a shit blade it will just drain the battery down more and require more force. but it also points to wekened coils if it doesnt start well when hot like in my case. is it a big job to change the starter motor on these?

[@Motovibes91]

I'm also having starting problems with my 2009 CB1000R. Replaced the crank position sensor and the battery but still wont fire. Checked all the connectors / relays everything's fine. Now going to replace the kill switch see if that helps

[@Motovibes91]

Oh and the charging system works great (when it finally fires)

[@JonskyGBR]

Mine was similar, would't always fire on the stand, flipped the stand up and fired up immediately. I changed the 3-way diode and it starts on and off the stand fine now. Pt no 31730-MAS-601 www.fowlersparts.co.uk/parts/view/31730-MAS-601

[@dariozanni8085]

did you try a lithium (LiFePO4) battery?

[@Motovibes91]

@@dariozanni8085 Hi Dario see my latest answer I replaced the battery with a lithium one and now it always starts first try

[@dariozanni8085]

@@Motovibes91 oh, sorry. Which did you buy?

[@Coldfin9er]

Not sure on this particular bike but is there not also a CMP (cam position sensor) on the control side? I had a VFR of similar vintage that had a similar crank no start, it had weak / no spark. Ended up being the pick up for the CMP on the end of the cam pulley was slightly bent and not generating a pulse. Easy fix, just bent it back and bingo! Not saying that's the exact problem here but may give you something to check, correlate CKP & CMP and verify wiring etc.

[@Coldfin9er]

James Wright-Roberts Hope you get to the bottom of it mate! Where were you scoping the CKP, at the computer or at a connector further down the loom? Any voltage drop on the signal wire between sensor and the computer? Seen a KZbin case study (on a car) where there was a CKP signal on a scope (at the computer) but it was actually too weak for the computer to be able to see it and interpret. Good luck!

[@benjaminrich9396]

can you measure what your peak amplitude off the crank sensor is at cranking? have you checked the sensor gap? are they adjustable on those ? I had a similar thing on a yam once and the bolt holding the pickup was loose.

[@hulk13taliban49]

Same problem with my cbf1000.Did you manage to solve it???

[@SuperbikeSurgeryTV]

No, but the concensus seems to be a voltage drop while cranking at the Engine ECU.

[@hulk13taliban49]

@@SuperbikeSurgeryTV thanks so much for the reply.I guess some electrical problems can't be solved.

[@OnlyUseMeC4s]

Interesting indeed. Funny how it runs ok when it finally starts.. Bad ground on signal wires?

[@Miguel-cy1gh]

Ya se que el hilo es muy antiguo aunque lo haya descubierto ahora. Tendo una Honda cb 1000r y tengo un problema muy similar al tuyo. Lo hemos mirado todo, reglaje de valvulas, bujias, sensores de picado, sensor de punto muerto superor, incluso estando en valores correctos los hemos cambiado, bobinas, todo ok, pero tiene problemas de arranque, llegamos a pensar en el catalizador, asi que usamos un supresor para probar, y no encontramos solución a todos estos cambios. Investigando descubrí que con el arrancador la moto siempre arrancaba de forma correcta, no así con la bateria que marca el fabricante, con la culal hacia cosas muy similares a la tuya, pues bien, con bateria de litio, buena marca y en estado óptimo la moto arranca correctamente con un cca de 300 con la original y cca de 180, no arranca ni aunque la bateria sea nueva; ahora bien, a los primeros sintomas de desfallecimiento de una bateria de litio de cca 240 que tuve anteriormente aunque el motor de arranque giraba correctamente, no habia forma de arrancar. No se realmente porqué pero mi moto necesita un cca de arranque superior a 240 y que la bateria se encuentre en plena forma, de lo contrario mis problemas son muy similares a los tuyos, yo diria que aarranca peor que la tuya

[@MrGennoso]

Que modelo usaste exactamente?

[@Miguel-cy1gh]

@@MrGennoso El arrancador sirve hasta para camiones no recuerdo el modelo la moto es del 2008, Incluso últimamente con arrancador como lleve tiempo parada tampoco garantiza que arranque a la primera

[@MrGennoso]

Miguel puse una de litio de 300A y a veces continua fallando.

[@Miguel-cy1gh]

@@MrGennoso He dado con la solución, es difícil, observé que cuando arrancaba sin la pata de cabra arrancaba bien, al parecer es un problema del sensor de punto muerto, cuando la pata está puesta detecta que está en punto muerto, se enciende la luz en el tablero, pero no da la señal a la centralita para que está mande corriente a las bujías y por esto no arranca, las cb 500 que llevan el mismo sensor tienen el mismo problema y hay videos en KZbin con esta moto que lo muestran claramente

[@MrGennoso]

Gracias haré la prueba, pero creo que puede ser el bendix

[@busa_rider_cy4012]

i have the same problem when engine is hot, i open and close side stand and fires up normal, i think its the side stand switch

[@franklandry6718]

cranks but no start, no signal from coils. any voltage at coils when problem present? could the engine stop relay intermittently make a bad contact? not providing voltage to everything that it should... would still crank though...

[@seams666]

I'm currently having the same issue with my 2010 CB1000R. Just had it fully serviced (plugs, air, oil filter and a new battery...but it increasingly refuses to fire up at times. Did you solve the issue?

[@JonskyGBR]

Mine was similar, would't always fire on the stand, flipped the stand up and fired up immediately. I changed the 3-way diode and it starts on and off the stand fine now. Pt no 31730-MAS-601 www.fowlersparts.co.uk/parts/view/31730-MAS-601

[@bikersquest]

Maybe a dodgy starter relay? Probably unlikely but my FZ1's starter relays had an intermittent on off problem and the ECU gave a crank position code.

[@AlexR1R1R1]

Hi, have you sort it ? I have the same problem with mine now in 2023.

[@otelul4life]

Cum ai rezolvat dacă ai rezolvat ? Eu ma confrunt cu aceeași problema și ma tot gândeasc sa nu fie staborul , încă nu l-am verificat . Bateria am pus-o pe redresor și avea sub 80% viața , am încărcat.o și după aceleași probleme .. Ma gândeam sa iau una cu amperajul mai mare .

[@AlexR1R1R1]

@@otelul4life am luat baterie noua și au dispărut problemele.

[@driesjongejan9872]

Hello, i've got the same issue here. I'm afraid that the starter motor is worn. What did you do to solve this problem? Thanks

[@SuperbikeSurgeryTV]

Unfortunately I didn't manage to get fo the bottom of it. The guy sold the bike before we could get it back in. My suspicion which I think I've already mentioned somewhere in the comments was excessive voltage drop while cranking, so you could be onto something with starter motor brushes or armature problem.

[@JonskyGBR]

Mine was similar, would't always fire on the stand, flipped the stand up and fired up immediately. I changed the 3-way diode and it starts on and off the stand fine now. Pt no 31730-MAS-601 www.fowlersparts.co.uk/parts/view/31730-MAS-601

[@Flo-gm5dg]

@@JonskyGBR hello what did you flipped up I don't understand ?(i have a poor english, i am a frenchman)

[@JonskyGBR]

@@Flo-gm5dg The engine would work with the sidestand/kickstand in the up position.

[@MrGennoso]

News?

[@mikkei3532]

broken wires , or crank sensor. did you check a dash codes ?

[@rothmenmoto7962]

Do you already change starter moto?

[@ribbster123]

cam pulse sensor would be my bet, had touble with them before.

[@gergelyszkok4347]

Sziasztok! Nekem is ez volt a gond. Főtengely jeladó csere meg oldotta a problémát!!!!

[@gergelyszkok4347]

Tudom....

[@PATRICKHUCHEDE]

Hello, I have the exact same problem for years on this bike and nobody finds (on mine, crank position sensor was replaced but nothing changed). Just in case, 1 year later, still no solution?

[@PATRICKHUCHEDE]

@@SuperbikeSurgeryTV Ok thks, I go on with Honda European customer service center on it because local Honda standard retail dealers are waste of time and money on this kind of issue... I'll keep you informed on the outcome if interested. Sorry I'm on the other side of the channel (speaking of the sea), a bit to far to be a new customer. At least I'm +1 follower of your channel

[@st3rg]

@@PATRICKHUCHEDE did you get an answer then ?

[@PATRICKHUCHEDE]

@@st3rg hello, for my cb1000r, my Honda retailer checked a lot of things but nothing solved it. What made it at the end : they changed the charcoals of the starter motor as they were in bad condition. And it fixed the problem.

[@MultiGogis]

Hi James, sorry if i missed the answer in previous comments, but did You solved this issue ? Seems that i have something similar when engine is cold.

[@MultiGogis]

no problem, thanks for quick response ;)

[@forumrider77]

Linas Rusteikis what was the problem? I have had this issue for a couple years now. Been to a couple techs and still nothing.

[@daveogle4239]

crank sensor. Is there a cam sensor too?

[@sabamacx]

Errant ground shorting from vibrations?

[@rhubarbcrumble3792]

No signal, weak or dirty signal from crank sensor woulf = no ignition and no fuel injection. If 3 wire crank sensor/hall effect then signal should be square wave?

[@rhubarbcrumble3792]

Would not woulf

[@jonathandavies6862]

Advice please! Looking to buy a 2007 cb1000r with a slip on exhaust, been stood a year garaged. Very clean, has 12 month MOT on it but has solid engine light on dash when started up. Lack of use 3 hot engine cycles perhaps, low battery, slip on exhaust messing with ECU are all my ideas but does anyone have any concerns/advice? Thanks

[@5th_Vertex]

problem fixed? what was that?

[@salahsalah-to6gl]

hello sir I want to have how to test the cdi of the motorcycle cb 1000r Honda ABS *** year motorcycle 2014 because I have more sparks in the boujie and how to test the sensor also thank you I am Tunisian

[@devilsd8ce]

Hello! have you solved this? i have a 09 cb1000r as well, with this same issue, just by watching this video i was having nightmares... i would appreciate some advice :/

[@TheGingerwillow]

Mine too! 09 model any job?

[@MrGennoso]

Any news?

[@mariabutler3356]

Similar issue here. CB1000R won't start when I crank it, unless I open the throttle slightly. Then it start with obvious revving. Doesn't sound right, but is this normal. It's my first Honda. edit: previous owner stated he changed the battery + coils

[@Syed_Nouman]

mine's having the same issue, ive got a new lithium ion battery, still no solution, did you fix yours? if yes then how?

[@mariabutler3356]

@@Syed_Nouman Mine needed syncing of the fuel injectors. Don't ask me how because my mate did it and he is a mechanic. It involves a special tool I believe to suck vacuum. Hoses under the tank. He said it was quite quick and easy

[@MrGennoso]

​@@mariabutler3356 now it work ok?

[@milavdh767]

what was the problem

[@ThomasMoore.1]

Did you solve the problem with this bike James?

[@kyleburgess2109]

did you resolve the problem? I have brought my bike to a dealer and they cant figure out the problem. I am trouble shooting it now

[@salmonfishingitssoeasy8181]

Hello I have the exact same problem with my CB1000R 2009 Have you solved the problem Bobby

[@markharwood1916]

I’ve been scouring the internet for solutions to this. Got a 2012 cb1000r that does this if I ride a short distance and don’t get my engine up to temp (normally about 85-90 degrees) If I then turn it off and try to start, it will literally try to drain the battery off before you can start it. Leave it to stand for 20 mins and come back cranks first time. Brand new battery and reg/rectifier and new plugs. My next guess is coils unless someone has worked it out.

[@joshmaster618]

Use better fuel, I had same problem switch gas station’s 93 octane

[@-DC-]

has it had the stator replaced Jim ?

[@-DC-]

James Wright-Roberts very voltage sensitive system on these it seems the cb1000r forum's have poor starting as a very common problem with a variety of reasons.

[@PATRICKHUCHEDE]

Hello, I have the exact same problem for years on this bike and nobody finds (on mine, crank position sensor was replaced but nothing changed). Just in case, 1 year later, still no solution?

[@marzenafarganus745]

And what was the problem?

[@SuperbikeSurgeryTV]

Didn't ever get the opportunity to get to the bottom of it, had it booked back in but the guy sold it.

[@marzenafarganus745]

I have the same problem. I will let you know when I solve it

[@senseyephoto1]

@@marzenafarganus745 i have the same problem... Which solves The problem ?? :o

[@muhammadfauzantanaka1588]

Same problem with my CB1000R year 2012. Anyone solve this problem?

[@Mangalex28]

Same here. Mine struggles to start when she's hot (and by hot, I mean at riding temperature, not overheating or anything). Last week, she struggled so much to start that I think I killed the battery...

[@nexgengetrekt8661]

thats seems to be a heatsock. take your starter out and inspect the magnets

[@Zubardun]

Look at the Cam pulse sensor.

[@daviddidcott3541]

All you need to change is the battery problem solved.

[@vincenthartanto9636]

What battery you currently using? lithium ?

[@commons996]

same problem on my 2012 cbf1000

[@st3rg]

did you find a fix?

[@osztopanyilaszlo9163]

I think, the CKP sensor is bad, or the air gap on the sensor.

[@mixiricaemerson1281]

Alguém pode traduzir

[@josephossmium7130]

Я отремонтировал эту неисправность! Я тоже очень долго искал причину! У Вашего мотоцикла есть следы падения на крышке двигателя справа!

[@leitis22]

Mozhno podorbnostji 4to za pri4ina?

[@ВасяПупкин-ю1д5ц]

Что было?

[@justinspurgeon9816]

My querk with all this is u say that this bike is a 09cbr1000rr an iv deen the new 2019 model or am it looks more like that then a 08 -11 bc there bo frame at the motor head the airbox is down under were the tank is on the 08 09 or what the deal can u help me und er stand what year rr this is bc it's not a 09 rr that's all I'm seeing ow he said cb 1kr hooligan version ok duuuu

[@ianmcgarrigle9510]

CB1000R not CBR1000RR

[@mechtechmechanical1571]

bad generator

[@chr11sf]

ecu giving erratic outputs.....does it have a cam sensor?