The RC45 Pain Continues, Fixing A Legend Part 2 (Honda RVF750)

Рет қаралды 25,993

Ай бұрын

I'm inching closer to a solution in this second part of a four part series, trying to fix a Honda RC45 that's almost impossible to start from cold.
If you can, please consider becoming a patron and gain access to the awesome motorcycle repair Discord chat group! Thank-You.
/ superbikesurgerytv
• Fuel Injector Service

Пікірлер: 66

@AlistairCampbell1047cc Ай бұрын

Jim, don't worry about the 'Waffleage' it's entirely interesting and, with regard to the length of the videos, also don't worry. I'd say that most of your subscribers would be glued to the screen for hours just to see the outcome of all the seemingly impossible situations that you're presented with. Absolutely riveting content. 👍

@SuperbikeSurgeryTV Ай бұрын

Really appreciate the positively, thank you 🙏

@deanbrady5240 Ай бұрын

This is so true mate, 👍

@ThomasMoore.1 Ай бұрын

Totally agree Love the detail in the videos, the troubleshooting and most importantly, the successful outcome.

@mentalsid3701 Ай бұрын

💯glued to the screen,,,fascinating stuff!!!

@johnwhipps5656 9 күн бұрын

100% Couldn't agree more. 👍

@deanbrady5240 Ай бұрын

Love your videos, I've watched every single one, think your too hard on yourself tho as the waffleage is great. I love how you narrate the videos in so much detail its what makes you stand out. Thanks Jim 😊 👍

@SuperbikeSurgeryTV Ай бұрын

Mate.....I really appreciate your positivity. It's really really appreciated. It's a huge amount of work and time to get a video out every week. When I get comments like this it means lot. You are a legend 🙏😁

@Twed Ай бұрын

The suspense is absolutely killing me 😂

@Subjectno23 Ай бұрын

Jim, you need to start selling wafflage t-shirts, reckon they'll go down well

@nickrider5220 Ай бұрын

Thanks for taking the time to do these videos Jim - they're brilliant 👍🏻

@brian623 17 күн бұрын

You are very clever, man. I would trust you with my motorbike any day I wished I knew half of your knowledge.

@nicktaylor1550 11 күн бұрын

Just discovered this great channel. Alan Milyard is interesting but not a patch in Superbike Surgery. Brilliant, keep waffling as it's all interesting.

@bjrnhjjakobsen2174 Ай бұрын

Very good explanation as always👌

@andrewandlm 23 күн бұрын

The "scope wafflage" was the best bit

@wlskyrme2193 Ай бұрын

Very interesting. Thanks👍

@jonbeargenx Ай бұрын

Not sure where you are on this one. But, I am fairly sure that this is a temperature sensor fault. I don't know if it has an air temperature sensor or a complete MAF, but the only thing that is not constant is the temperature. It's running lean on cold start, so what controls that? Well for starters the sensors, then the ECU, fuel pressure and lastly injectors. MAF sensors are in my opinion what most often fails. If you don't reply here I'll post it on your Discord to make sure my idea is heard 😊 Cheers (the connectors in between is also a must to check of course)

@markaddy53 Ай бұрын

great video lad im totally out ov my depth sure your not ul sort it hopefully next video please

@andyjrichie6709 Ай бұрын

Very baffled😂, but very interesting great video

@peted7295 Ай бұрын

Very interesting. Maybe using a colour tune would be better for getting the individual cylinder adjustments right in this particular case.

@jettamaster3297 Ай бұрын

Is it tomorrow yet? Great videos and lots of info. FYI the waffling is the kind in thought process info that helps us glean insight on how to tackle things. More waffling! I've liked and subscribed. Cheers

@jamiecooksey9037 12 күн бұрын

What happened with this bike? You left us hanging 😢

@ferguscawley11 Ай бұрын

Have you tested the coolant and air temp sensors ? ECU is being told engine is warm when it isn't and ain't giving the rich mixture needed for starting

@basilwatson1 Ай бұрын

hahahahaha me screaming the same thing and I really feel his pain about the "manual" awful doesn't do it justice !

@SuperbikeSurgeryTV Ай бұрын

You are ahead of me, wait for part 3!

@BRUM9922 Ай бұрын

recorded in sept 23 so this is all hopfully sorted

@ferguscawley11 Ай бұрын

@@BRUM9922 How do you know it was Sept 23 ?

@BRUM9922 Ай бұрын

@@ferguscawley11 laptop 3:08 in

@chrisburkinshaw1819 21 күн бұрын

Has part 3 been done yet ?

@matthewharmer1656 Ай бұрын

Bin the power commander ??

@999fugazi Ай бұрын

Great wafflage as usual. You might want to add something about the scope use in your titles to help the YT algorithm. Your explanation and real life use and diagnosis will be of help to all motor mechanics not just us weird bike types...does that make sense? tshirts please !

@ThomasMoore.1 Ай бұрын

Cliffhanger 😲

@peterwilson8797 Ай бұрын

If it is those screws and it richens the whole map the power commander could be reset on a rolling road.

@stevegage5786 13 күн бұрын

was there ever a part 3 ??hate it when I start to get into a series and then it leaves you up in the dark !

@flibbertigibbet6200 Ай бұрын

Could also be worth checking oil/air temp sensors if fitted or TPS? quite common on the GSX1400 I found, Also the STPS for cold start can play up. I know it's a different bike but these are some things I have come across.

@philreed8045 26 күн бұрын

I have some pictures from the workshop manual that may help

@jbcowherder6210 27 күн бұрын

what are your temperature sensors reading when cold? I've seen where a out of calibration temp sensor, or one that goes "open" at certain temperatures can really mess up your day. the computer is totally dependent on the big 5 sensors (or 4 depending on the vehicle) to calculate for the fuel map to use- air temp, coolant temp, oxygen sensor, throttle position sensor, mass airflow/manifold pressure sensor- and with that, i would (before condemning any sensors) check the reference voltage to the sensors and sensor grounds (and don't just ohm test the grounds- check for voltage on the ground circuit under operating conditions- a wire can ohm good with no load but fail when under a load). bad in is bad out......... . is there a way to see the data list for the computer? engine cold, the intake air and coolant temp should read the same. when cold start, the computer shouldn't be using the oxygen sensor input, but it has programming to input values to keep the engine running. then look at throttle position sensor (you did say it runs good warm, so i doubt that's it), then the ignition input. also you said it runs good warm, so i doubt its a mass airflow/map sensor. one last thing: most Japanese computers are rarely the problem. i've seen in my whole 30+ year career probably less than 10 computers that were truly bad- it can happen, but it's rare.

@j8m8l Ай бұрын

Defective intake air temperature sensor messing up the fuelling?

@captaintoyota3171 28 күн бұрын

Correct

@bjrnhjjakobsen2174 Ай бұрын

Air temperature sensor? (If Any)

@captaintoyota3171 28 күн бұрын

Yup

@peteryoung5513 Ай бұрын

I think the term you are chasing around 13:30 mark is "RECALIBRATE"

@ragnarironspear1791 Ай бұрын

No notification 🤬🤬 thanks YT

@marcusFZ6 Ай бұрын

WTF's with the cliffhanger.(joking of course)......Could of at least given it a quick turn over and see if there was any difference. Those little pots are obviously quite sensitive little beasties if they make that small of a difference. I think you've gone the right way by going full rich and see how she goes. The only way to set them up properly is to have a funky graph machine like you have to measure pulse width. The engine must also be picky about the amount of fuel that it likes for start with a fine adjustment. Can't wait to see how it all goes in next weelks video.

@mickl8212 Ай бұрын

What about honda car injectors of the same era? I'm sure my Integra Type R ones are 240cc

@dalemeadows225 Ай бұрын

Jim you tease 😋

@alexmegyeri3050 Ай бұрын

So what was it? Can’t find part 3

@firestorm755 Ай бұрын

You said it had a 'choke' cable to enable cold starting. Is it actually working?

@paultrainer4560 Ай бұрын

Cold start sensor for choke (electronic choke)?

@andyjdaviestjk 14 күн бұрын

Where is your workshop,what part of the country?

@Twinpot1962 24 күн бұрын

Was that a mug of Bailiey’s you were drinking!

@benlynch3783 Ай бұрын

Doesn't this have a (choke) enrichment cable, and is doing what it's supposed to do?

@ferguscawley11 Ай бұрын

No. It's fuel injected. It has a fast idle cable that increases the revs only. The bike needs a richer mixture which is achieved via additional fuel commanded by the ecu. Straightforward enough really.