650 Swapped CX500 On The Dyno! VOLUME UP! EP62
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- čas přidán 7. 09. 2024
- The 650cc swapped CX500 build on the dyno! Volume up as this thing sounds AMAZING and put down some great power! This is a long time build and it is finally ready to ride after sorting a couple issues. If you see a specific item on this bike and want to know more about it, I have a dedicated video on it within this playlist with full information in each description.
Previous video breakdown of the bike:
• CX500 BUILD IS BACK! P...
For those unfamiliar this is a 1981 Honda CX500 that I have built and has extensive changes throughout the entire bike. For this video the main change is the 650 engine I swapped in from a 1983 Honda GL650. I did a complete rebuild on the engine with stock pistons/bore and a fresh hone. It has new rings and just fresh throughout. I did do a bit of work on the cylinder heads with a light cleanup and port-matching on the intake side to match the fabricated intake manifolds. The exhaust side is merely cleaned up with no big changes there.
Other components/specifics below:
- Mikuni VM34 carbs - NO I WILL NOT PROVIDE MY JETTING INFORMATION
- UNI PK92 filters
- Handmade stainless 2 into 1 exhaust. 1.5" OD tubing with dual 1.5" inlet and 1 3/4" outlet merge. - 1 7/8" ID inlet Competition Werkes Muffler 3.5" canister version but custom ordered
- Rae-San Hall Effect Ignition system
- Ultima Big Twin single fire coil PN 53-434
On the dyno our main mission was to work on drivability and fueling at normal operating conditions. Simple jet changes and adjustments were needed. As the dyno is a great tool it was able to highlight other issues I had with the bike in the areas of fuel supply and ignition.
On the fuel supply issue it became pretty clear the petcock I had installed simply could not keep up with the fuel flow demands and was causing a lean condition mainly in the left cylinder. Once we hooked up a simple fuel bottle we could continue with testing. I have since purchased a Pingle 6411-AH petcock which is for the 16x1.5mm threads on this tank. That will sort my fuel flow issues.
For the ignition misfire this was due to two issues. I had set this bike up with some MSD automotive plug wires that I had lying around but was not using a resistor spark plug cap. The Rae-San system seems to not like those so I have since picked up a set of NGK copper core wires with the 5k ohm you normally see on the bikes. The first few scenes on the dyno you can hear a lot of misfiring which was due to the spark plugs. I had a non-resistor plug in the bike and forgot about it. I ran to the store and grabbed some NGK DPR8EA-9 plugs and that was a drastic improvement. All simple fixes but hard to diagnose on the street.
I can't thank Mike Taylor of Taylor Motorsports for his time and knowledge on this day! He really allowed me to test and see changes in hard data form. He is a total pro so check him out via links here:
Facebook: / taylormotorsportsstl
Instagram: / taylormotorsports2644
Located at 2644 Gravois AVE in St. Louis
Playlist guide:
Carbs and Intake manifold fabrication: EP20
Making the shift linkage: EP24
Full engine teardown: EP35
Cleaning/hone: EP36
Porting/valves: EP37
Engine assembly: EP38-40
Rae-San Install: EP48
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#brickhousebuilds #cx500exhaust #cx500dyno
Hey everyone I hope you enjoyed the video! Before It gets asked I want to say I will not be providing any jetting information for multiple reasons. One reason is that every combination is different and what worked for this bike may not work for you. Another reason is that if you plan to tackle this yourselves you accept a level of research, cost, and time that needs to be invested and not simply have answers provided to you on what to do/use. Anyway, I'm looking forward to sorting the couple issues and getting this bike on the road to fully test out!
A call to Mikuni/Sudco got me definitely in the ballpark on a '78 Triumph T140 w/36mm flatslides, a few needle & (one) mainjet changes dialed it right in with my "seat of the pants dyno". That bike had trouble keeping the front wheel on the ground with the nasty TT cams we had installed and the 2:1 handmade stainless header. Not bad for an air cooled Triumph(with many engine mods internally)!
I get it about tuning info, learned carb fine tuning on my CBX many years ago when it was normally aspirated, got it to run with individual K&N air filters and modded 6:1 header(loud AF), felt like it had an extra 100cc or better after it was done. Hard part is figuring out CV slide air bleeds and spring tension, was rheostat smooth after getting the CV slides to follow the throttle in a more precise manner. End result was 11.01 @ 121 mph at the drag strip with street gearing & open stack on the header. Keep your stock parts, used spares for this mod.
Honda did a really good job engineering the carb function with stock airbox & engine configuration, hard to out-think their expertise but it can be done!
@@MM_in_Havasu there are no stock parts for this bike. It was a basket case.
@@BrickHouseBuilds looks like you did a great job putting it together!
Get it that you wouldn't have a stock airbox for that bike, but your choice of carburetion is excellent and will drive very nicely after you get it fine tuned. Thanks man!
DAMNNNNNN,,,, since when carb jetting get top secret with you?!?!?!? I GUESS More subscribers some people get bigger their head swells….
@@bear186 thats uncalled for. You obviously do not watch my channel often
Thanks for putting this into the universe! 😁
Thank ya sir! This one was a lot of fun!
Thank you for sharing this. The before and after runs show how much real world power you can leave on the table even if you get WOT right. And don't sweat the haters! Your content is great, and if you think it's best not to share something, that's up to you.
Thank you Jack I appreciate that
Hell Yea Brother!!! Sounds Beautiful! When you said you had an entire playlist on this build I said to myself with headphones in…”This is the playlist, and every pull is a different track!🤘🏼🔥”
Haha thanks Alan! This was an easy video to make "too long" and I just kept enjoying editing the clips and sounds lol
Your security dog is a sweet heart and adorable, thanks for the video and ride safe.
Anna will be first to snuggle and intruder to death. She was so sweet!
What an awesome bike. I love the design. That engine sound is amazing👌👏
Thank you Neville!
I want this bike even more now!! Those red cylinder heads are just gorgeous and the exhaust note. Very nice job!!
Thank you! I really think we nailed the colors on this thing. Its striking for sure
Nothing like real dyno tune to humble even the most experienced "experts" out there! Heck of a way to truly sort out your machine. If you think about it, the expense and time on the dyno is cheaper than slogging around in the dark! Cool dog!
Oh its money and time well spent for sure! As I mentioned being self taught gathering info as I went this was a great way to test my thinking and see results. It was awesome
Really cool video buddy - this would have freaked me out the entire time - one that it would fly off the machine - two it blow up the engine - hopefully you werent feeling as much anxiety as I was! Good to know the details - if this didnt set you back too many dollar bills I can see how this would be beneficial with all your builds. I like that this was more than just about the power power power - this process really gets into making sure that it is running at the level it could/should. Looks to me that if you were looking for the power - 61 HP is fantastic due to there only being 64 HP when it was new - haha - not too many have slipped away in 39 years!!
Thanks Mike! I was super nervous lol. I DID NOT LIKE standing right next to the bike while making pulls. Kept eyeballing that valve cover hoping nothing would come flying out at my face haha. Indeed the video is about the process and not just a power pull. I always hope to educate on what it takes and what the important stuff is
For the numbers I'm very impressed! 64crank stock and now 61 wheel. Who knows what drivetrain loss there is but you can assume at least 15%? I'm not sure but just happy with its overall performance
Bit by bit you hear it getting smoother. Maybe you can show those caps one day what the differents is side by side.
I used to have great dane myself. Awsome dogs.
Thanks for the upload.
That was a big part of why the video is the length it is. To be transparent and show how small changes add up. I won't have it back on the dyno but I should be able to get some good testing while riding and speak on the feel. Thank ya for watching!
The bike is a work of art it's a credit to your hard work.and the sound is the dogs danglies cool video 👍👍🤘🤘
Many thanks Darren!
Sounds pretty darn healthy to me! Should be a fun machine to ride. Thanks for a cool video!
Glad you liked it and thanks for watching!
This bike sounds as good as it looks, dude! Getting a look (and a listen!) at the dyno working is quite interesting! I'm going to have to spend some time on the build playlist! 👍
🤘🤘
That bike sounds amazing
Definitely sounds mean!
Excellent video of good dyno tuning. You may find that after this test session the compression has increased as running on a dyno is a great way to break in the engine and get the piston rings seated to the cylinder bores. It's much faster than riding. That flat torque curve is classic Honda. They love to pull all the way through the RPM range.
Thanks Millar
You built , an own the bike. I don't understand why you're not on the bike putting it through it's paces.
What do you mean? I do not own the dyno or know how to operate it. The tuner/dyno operator is always the one who does that. No dyno facility ever let's you run your vehicle on a dyno as there is a lot to it
@@BrickHouseBuilds Oh, now I understand. THX for taking the time to explain it to me !
To go a bit further in explaining the process, notice how Mike varies the throttle at different times and is watching the screen. He then sometimes presses a button not to do a pull but to add load the bike to make it work harder. All this is to measure air/fuel ratio at every conceivable rpm/throttle input. We then take that data and make adjustments to the carbs and retest. He is in control of what aspect or area he is looking to measure/adjust
@@BrickHouseBuilds THX, I appreciate it. I'll go back, and watch the video again. I'm not a bike builder like yourself, but after your word's of wisdom I'm positive I'll understand it better second time around . Keep up the excellent work !!!
This thing sounds so incredibly good.
Thanks Steve!
Bike sounds Great!! Very nice video of some dyno tuning. Thanks BJ for the video.
Thanks Carl, glad you enjoyed the video!
Your builds are amazing!
Much appreciated 🙏
Cool video. I would love to take my 75 CB750 to a Dyno and get it tuned better. It runs good but a little rich. When I try to lean it out with the air screws I get a lot of decel pops. From what I've read, it's better to be rich than lean.
Well there are multiple adjustments that need to be made that all affect different areas of the rpm range and throttle inputs. Excessively rich is bad too. Fuel wash on the cylinders can cause ring wear
Amazing build, keep up the good work
Thank you much!
Awesome! thanks for sharing, on some of the higher rpm pulls I kept watching the rear tire diameter increase wondering just how much it was going to deflect. Great opportunity for you to see it perform up close like that as a bystander (as in not driving). I too would have been a bit nervous about some spontaneous engine disassembly 😨
The tire was at 40psi as well so cool to that! Yea, wasn't a fan of standing right there!
The sum total of all your hard work! Something to be proud of!! Regards!
Thanks man! It was a good day
Awsome to see the dyno process
It was a cool day! The dyno is a cool toy to have for sure
Should be on Spotify, great song!
Hahaha thank ya!
You need to fire your boom mic operater. What a tool. Lol. I'm REALLY hoping my issue is my spark plugs as well, I really don't want to do new coils. This was awesome man, thanks for sharing!
Hahahaha yea he's tossed!!
I've watched you put on every single nut and bolt on this bike, buy nope, I'll take that Bobber you built any day . no for power Just because I think it's beautiful. There's an ass for every seat my friend. Well it been a year sense my surgery on my neck and couldn't touch the Cavernoma without killing me we left it a lone and fussed from C-2/T-2 had my second operation yesterday because I have an infection in my spinal cord so they matched the infection with the antibiotics so I just may get another shot at this whole thing.
Its all good Mike, an ass for every seat as you say! Both great bikes, both a blast to ride. Thats sad to hear about the infection, that happens so easily but get well!
HAHA!! Jet collection envy!! that's great!
We all covet different things 🤣
Great work on the diagnosis RE: the jetting and ignition. I'm impressed with how flat that torque curve is. Bike sounds great, with jetting changes did you stop the exhaust popping on the decell..??
Yea there wasn't much curve to that torque line haha. She's a stump puller! With this exhaust there will always be some popping. Its not to an excessive level in the least
Top video and perfect work, what size are your tires?
That bike is badass!
Thank ya Rick!
Two words. BAD ASS!👊🏻
Thank ya dude!
Love the sound
I'm a fan myself lol. Thank ya!
Crazy how much that rear swingarm jacks on and off throttle.
Yea shaft drive does have a pinion jacking effect but I do feel the rebound is far off as of now. We will see how it acts on the street
Sounds great!
Thank you!!
ill be honest, i love the bike and what youve done, imo though this isnt the exhaust for it
Well, not every part can be perfect for everyone. It's all good. The customer loves this exhaust and thats the ultimate opinion that matters
@@BrickHouseBuilds fair enough! too loud and free flow for me
@@circleworks1510 My preferred sound would be the GL650 I did with the Cone Engineering muffler. Crisp, still muffled, and not obnoxious
Sounds awesome 👊
Many thanks!
So so sweet 🚀⚡️
Thank ya sir!
She just wanted more fuel! flat torque curve on those 650s
Table top of a torque "curve" lol. She has fuel now and it fantastic through the rev range
Gee it takes longer than I thought but one has to tweak it.
Its not a simple process and thats what I try to show on my channel. I think I was here for 8-9 hours
@@BrickHouseBuilds Wow that is a long day.
@@banditnev not really actually. Thats what it takes. For every 5 minutes you may see on here there is 5 hours that went into it. You also don't see the hours of tuning in my shop/on the street to get it as close as I could.
I almost skipped ahead because fifteen minutes of a stationary motorcycle hooked up to a bunch of electronics makes for dull viewing. I’m glad I didn’t because I would have missed the whole point. (And I’m willing to bet 99% of us are self-taught so these videos are an invaluable source of information.)
Well thank you for sticking it out. I refuse to make click bait highlight videos aimed at goldfish attention spans
Vidéo top et travail parfait , quel est la taille de vos pneus ?
Thank you! I have all of those answers in this video: czcams.com/video/LJwTc6neC0E/video.html
THANKS
You have a great channel . What was the cost per hour for dyno time ?
Thank you Bill! I linked Taylor's shop info in the description so you could contact him should you be interested in dyno time
Bj your making me want to go by another bike .... my wife is not gonna be happy LMAO
Hahaha I'm a bad influence!
Watching you build that cx actually made me buy a ton of parts and start the process on my bike again. Lol .... I don't mind the bad influence lol
Well doesn't that sound great in the Dyno?!.
I was really worried the sound would get distorted by the volume and ruin the recording but it did great! I had my audio recorder going but only used the external mic on my go pro
I had a miss fire on my VTR when I got it years ago. Very similar to yours. I tried everything through ignition system to ECU through to fuel system, different carbs.
Turned out to be a crack in a plug cap... That was all it was but so annoying to find!
The bike is awesome you've built