Thank you for making this video. I'm a master Subaru technician, just picked up my buddies 05 CBR600 with a crank no start. I don't like throwing parts at anything I work on, so I figured I'd do some research ahead of time. This video just saved me a lot of unnecessary disassembly and diag right away. I know about the common fuel tank/sending unit corrosion issues, but this is the gold nugget of info that I've been searching for. I'm gonna make sure to do a proper write-up with pics and instructions on a couple of forums so that the next guy can avoid turning his harnesses into spaghetti or ending up with a bill from the dealership that's more than the value of their bike. Thanks again brother. Ya don't know till ya know!

Wow! After 3 days off chasing wires I run across this video!! Your the man!!! Was totally the issue! Fixed my problem!!!! Thank for the video!!!!!!!!

HOLY COW. I lost my keys to my cbr like a year ago and switched the ignition out. Ever since then I've had the fuel pump prime issue and I've torn my bike apart and read countless amounts of forums trying to find the solution, only to land here randomly at this video at 3 am that solves it. I cannot thank you enough for posting it.

YOU ARE THE MAN!!! I have Honda VFR 800 2002.. Thanks a lot!!! I bought the bike, and the seller said it’s just starter relay and I’m change ignition switch and fuel pump . Battery was dead 😬 so I can’t try it.. and guess what? FI is on and I can’t start the bike😬 so I change battery, starter relay, stator, IPG, Regulator and still nothing no spark no fuel pump priming.. so I change CPU, BAS still nothing. Then all wiring harness, spark plugs, ignition coils and nothing ... I've read all the forums and nothing. But today I saw your video and? She is alive!!!!! Thank you 🙏

Thanks for taking the time to make this video. Working on my 2002-2003 945rr, bad fuel pump... took the pump apart and got that working, and after checking all the sensors as per the service manual, and even trying the 9v battery you did, still nothing... decided to trace the pink wire and found it broke/mouse chewed through only the pink wire on the whole bike.....lol soldered up the pink wire, hooked up the 12v bat. and she came to life!!! It's been over a year since the same priming sound you were so excited to hear, I finally heard. Without your video, who knows how long it would of taken me to stumble across the broken pink wire.. Take care man

So glad I found your video. Just at the beginning of my troubleshooting, and you may have just saved me. At least I know where to start now! Thank you for posting this video. It really grinds my gears that people dont post solutions once they've found them.

Totally agree! So many Forums/threads and often no fix posted! I appreciate your time!

Great video and follow up. Took out my cbr600rr for my nephew to go for a ride and same symptoms. Much appreciate! Thanks

Thank you for a definitive fix! I have a 03’ CBR954RR that died 3 times going down the road, the third time it didn’t start again. Exact symptoms, I now have something else to check other than the other items you mentioned. Thanks!

Awesome video and info. Thank you for sharing. Somewhere you are saving someone a big headache and lots of money, not to mention important knowledge.

My race bike with ignition key delete just started having this issue intermittently and then the main fuse blew just as I was going out for a race!! Turned out that the connection to the diode in the pink wire was bad - not sure if I would have found it without seeing this! Great work, much appreciated!!

You are number one!!! Save me a lot of headaches !!! Thank you for the video!!!

You are a life saver!! I knew there was something odd about that wire! Thanks thanks!

Thank you for the info!!! Zener diode is 3v9/0.5W - just need to be replaced.

Thank you so much this fixed the bike when the dealership was telling my customer $1500 for new computer

Great video, I've just had this no priming issue, I thought it was old fuel as I havent used the bike in months, so im mid strip down, fuel out and clean everything. If that doesnt work I'll check that diode. Strangely when I tested the fuel pump connector with ignition on I only got 3.5volts. Thanks for showing the solution. So many people dont, probably coz they never found the problem and gave up. Cheers

Dude you're a hero man got me back on my bike again thanks you sir

Good deducement to solve the Problem.You explain Things Really well. Lots of Gossip in Internet but few solve the Problems. Your an Exception. Greetings from England. 👍🇬🇧

Love your work and getting to the bottom of the problem.

This helped me a lot today fam Tks and keep up I was on my way to buy a new ECU then I seen this and it worked..

I had that problem on a 2004 Yamaha fz1 that someone ended up showing me. Came up on a 05 ninja 636r that almost got for nothing with same problem. I'm finishing up some maintenance on the bike, but that diode was completely broke off on the one side. Good video & helpful for anyone with this problem

Thank you so much! I crashed my bike and it had this exact same issue trying to get it run again.

This is this is exactly what mine did and the 9v battery worked identical to ur video ! Thank you. New ignition is on the way. 🎉

VERY KOOL DUDE..... HAVING EXACT SAME ISSUE.... DUE TO CHEAP COST AND YOUR KIND SERVICE ILL BE REPLACING THIS FIRST.....🖒🖒🖒

heck yea man very good video. explained it very well . of all videos iv watched to figure out the problem of my honda cbr 600 rr. this one was the too one to help. thank you

Thank you for your video I have a 97 Suzuki GSXR 600 Srad with no spark and I have replaced all electrical components and the complete wiring harness and some how I think it could be with the key ignition

Hi , I just wanted to say thanks for the video. It helped me figure out the issue on my bike my bike was stolen and I couldn't figure out what the issue was when I bought an aftermarket ignition switch that did not come out with the diode

Thank you so so much for helping the only thing that helped and solved my problem.

Thanks brother, have not had this issue but love to see fixes for potential problems my CBR might have

I’m on an 06 1000RR and it’s been doing the same thing intermittently. It would even die while I was riding it but only to fire right back up while rolling. Essentially a 50mph push start 😂 It would have zero electrical issues just the fuel pump would reprime and I’d be on my way. Then it was happening at random stops but would start immediately. Then yesterday I rode to Walmart, came out and zero prime. Everything else looks like it’s working but it refuses to prime. I’m betting you just saved me a lot of time and money. I WILL come back to update if this resolves my issue. I’ve already found the pink wire. I just need to put some other stuff back together before I can test it. Thank you for putting in all that work!

Dude massive props to this video, good job thank you

Man 6 years later thanks so much. just picked up an 03 and can’t get it to start gonna have to check this out tomorrow!! i’ll come back and let you know man

hi i have a 2001 blackbird and i to had a total shut down it would turn over with out a problem and after checking every part of the wiring and after watching this video i found on the under side of my Ignition Switch there is a zener diode that has dropped off the connections on the bottom of the ignition witch has stopped the pump from priming but thak you so much coz iv been pulling out my hair on this problem and it has saved me so much money thank you so much for posting this video from mark

Holy Moses! I have a 2010 CBR1000RR and just ran into this no fuel prime issue the other day. Don't know if this will fix my issue but it sure will be a good starting point to investigate. Thanks Andrew for this KZfaq vid and I totally agree, everyone needs to share their stories and more importantly the fixes they find in the end! Cheers brother!

hi andrew ive got the same problem to the t on my 929 2001 model definately going to try this nice video very informative ride safe from south arica

Thanks for the share, I also had the same problem with threads on forums... my bike doesn't have this problem...but awesome that you share this...I have also been looking for a fix for mine too, mine starts most of the time, but then it just goes off when accelerating, also sometimes..not always...driving me mad and quite dangerous especially at the track

Definitely having this issue today. Thank you so much

Awesome video thank you for making life easier for others.

Music to your ears when you hear that prime after a few days of testing wiring. I have a similar issue with my cbr, but alas this is not the problem. I will keep testing and reading. Thanks for this video it helps.

My 02 has the same problem, gonna try this and hope it leads me down the right road. But a big thank you for this video

I have the same issue with my 2003 honda cbr 600 f4i. My buddy and I have tried and checked everything but the ignition. Your video has help my buddy and I out alot thanx.

good job bro, you helped us out immensely thank you

Hi Andrew, got same problem with Honda Vf750 will try your fix thank you!

Awesome video. Thank you. You Are absolutely right people would say things and try to help but they don’t exactly tell you how they solve the problem. That could be kind of a waste. Thank you again much appreciate it I was having the same problem now I’m going to try to do the same. Hopefully it works thanks.

Very helpful thanks great job the diode needed to solve this issue is a zener diode 9v resistance which will regulate voltage 12v to 9v

I haven't installed a new zener diode yet but I did cut the pink wire, connected it to a 9v battery and got the bike to run. THANK YOU VERY MUCH!

THANK YOU IT WORKED YOU ARE THE BEST!!!!!

Thanks. The perfect fix for my 2004.

Thanks for the video. Unfortunately, My bike was vandalized after it was stolen. They tried to short wire it, but didn't succeed. I didn't try that fix yet, I am having the same symptoms though. I was wondering if the generic ignition set on Ebay has that diode? or I will have to look for the genuine HONDA one?

Never would think of that !!! Top Man !!!!

i have a 07 cbr engine in my 72 vw bug....had nthis same issue and figured it out...but cool video for those in need !

Hey, thanks a lot for the video! Is there any chance you can share the specifications of the Zenner diode needed for the replacement? A link to the right one would be awesome!

Cool video I have 1 sit for a year never knew or heard this b 4 thanks

Outstanding, you helped fix my problem

Andrew, you rock! Kick ass! Greatly appreciated!

cool man thankyou your so right, I shall try to share. Your clip was great ta.

I tried this but it didn't work. I also replaced the zener diode that goes into the ignition switch. I'm waiting on my new ecu so hopefully I'll be riding. Glad you fixed your problem 🤙🏾

Great info . This fixed my problem !!

Thanks man, nice video. Just bought an 09 yesterday from an insurance auction that won't prime. Checked out all the easy obvious stuff, now hoping it's the bank angle sensor (which is missing), but if it ain't I'll be checking this out.

Awesome, that was exactly our problem too,customer crossed the jumper wire and cause this issue

Hey man I like the way you explained thanks bro

Unfortunately in my case, all that stuff was good. My new Rectifier blew my battery and pin 25 on one of the connectors which activated the fuel pump. I had to buy a new computer and it worked. Great find on your part though. Great video.

Hi Andrew, I wanted to ask you if your control unit is of the American type and if this operation can also be carried out on a European one. the pink thread that number of pins has? Thanks so much

Dude thanks you were a big help

Thank you bro, your a star, respect and all the best, I am having this problem as I am righting, again thex your a star....

Nice job on this video I’m having this issue right now 🤦‍♂️ pain in my a** to say the lest

Just bought a project f4i with no spark and when the guy started to turn it over i heard to fuel prime. Glad I found this video. Im sure this will fix it. Are there any aftermarket ignition switches with the pink wire?

Thanks hopefully this is the fix for my blackbird 👍

Got the same issue on the 954 Fireblade, Ill go and get a 9v batt and hope it works, funny thing is that It started with the headlight not working. we will see!

Thanks bro... I needed this

hey brother awesome video, im having the same issue but in a 2007 honda cbr600rr and i was just wondering if it could be the same issue

Thank you so much for sharing this !!!!

I got a nine volt battery hang I don’t know how to do the diode thing or which one to get, this 9v battery last about a month or so... u have a like to the diode thing? Thanks a lot for the the video!!!

Awesome video, thank you for sharing

Thanks, It fixed my problem on 2003 cbr954

Hey Andrew so how do you fix the problem by buying a new ignition?

Excellent video, I Will try to reply this step and upload a video in spanish for the people that don't speak english. Regards

Thank you very much for sharing!

I have my 03 600rr and my zener diode is completely missing. And the pink cable you have on the back of the ignition switch is also non existent. I hsve an Australian HISS RR so is that why i dont have that extra cable?

Ah dude, Thank You, Thank You, Thank you! I bought a theft recovery bike and the ignition switch had been stripped out of it. No big deal I thought and just ran a simple on/off switch to it. Needless, to say she never even spit or coughed. I have traced every wire, thrown parts at it, and was at my wits end until I saw your video. My bike looks about like the one in your video.Sure enough, I hooked a 9 volt battery up to the pink wire and she cranked right up and ran like a champ. I have to admit, I wondered what the pink wire was for, but just ignored it like a big dummy. Dang, I am totally pissed off for being so stupid, but elated she is running, I sure learned a lot at least. Again, Thank You!! May lot's of good karma come your way.

Yur video saved my butt lol. Thanks man

hey andrew i try this a few days ago and it work wonderful but there after i lost power in the pink wire and i didnt get any spark on the plugs the voltage drop to 3.73 even after connecting the pink wire back direct without the small battery

Great fix...thx. I have problem when my steering wheel is totally left, motorcycle can be turned on. When is not in that position...fuel pump does not work. So I guess there is a break in wire somewhere since I checked kill switch, fuses and relay...good luck to me 😂

Hey can u tell me how you hooked the 9volt battery up to get it to prime I cant get it to work

good job on video and posting a solution

i have a cbr 929 2001 and found it does not have a zener diode at back of ignition. I am nut much of an electrician at all but wondering how exactly to connect the 9v battery to ecu pink wire? So the grey terminal of the ecu has an all pink wire feeding into it; and I need to connect the positive terminal of the 9v to it? - what about the negative terminal. Help would be very much appreciated as have spent tonnes of bucks on bike ...

Excellent video. Thanks

I have an 02 cbr 929 I’ve checked EVERYTHING. Replaced ecu and all relays are good and fuel pump will even prime but the injectors will not shoot. My diode reading is only 8.4. Would that be the problem??

Once I do this n it works if I turned the bike off would I have to redo this with the 9v battery or would I be better off buying a new key switch

Curious did you put the kick stand up. Make sure neutral and start bike.

I'm putting this engine into a Go Kart This will come in handy thank you!

What’s up Andrew, I have hw same issue. So pretty much a new ignition switch would also fix the problem right? Please get back to me as soon as you can!

My ECU has two pink wires. One pink and white and one pink and green; which one did you hook yours up to?

Dude, such a good video.

If it was that wire which wire or wires do o put the resistor on cuz im having that same problem with my new ignition switch.

if the diode is reading 9.4v will that over throw it and cause it not to prime?

Hey Andrew. I have tried the 9v trick but not dice. Pump is priming when straight juice from batt direct. So it’s not pump. Any other suggestions.? Thanks

Great video explanation 👍🏼👍🏼👍🏼👌🏼👌🏼

So if it is the pink wire how do you fix it? Ride around with a 9 volt hooked up?

Thanks for the video, my 2012 CBR1000RR was running great until I washed it, now the fuel pump isn't priming, I'm going to look into this as one of the causes!