How to BALANCE BIKE CARBS on a car engine
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- เผยแพร่เมื่อ 25 ส.ค. 2018
- Carburetor balancing tool I used in the video: amzn.to/31oDK6L
4age DanST engineering bike carb kit: www.ebay.com/itm/Toyota-1600-...
Ever wondered how to balance a set of bike carbs on a car engine? Today we answer that question. Balancing or synchronizing bike carbs on a car engine can have some unique challenges. First one is access and the second one is the tool you use.
The most common way to balance motorcycle carburetors is to use a set of vacuum gauges or a special motorcycle carburetor balancing tool like the carbtune pro. These work great on a motorcycle, but when you convert a car engine to run on bike carbs you usually won't have anywhere to connect the hoses of those tools.
I faced the same problem and found an awesome alternative. A simple little old school tool called the uni-syn. It completely eliminates engine bay access from the equation and makes balancing bike carbs on a car engine a breeze. Simply put it against the trumpet of an individual carb, watch the position of the red bobber and adjust the carburetor accordingly. Easy!
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Carburetor balancing tool I used in the video: amzn.to/31oDK6L
Looks like i'll buy me a set this december i currently have a Na6ce (eunos roadster)
Damn I'm so glad I found this video, there are not a ton of us running a bike carb setup like this. This was super helpful, thank you.
Another great video! I really love the blue and black color scheme you've got going on with the cam cover and the carb trumpets.
nice tool.
i could see it useful even when tuning all 12 carbs in a classic Lambo or a Ferrari
Imagine that, took me about 10 min to do 4 carbs. So it means it takes about half an hour for 12 carbs, although I think it's 6 twin carbs on those v12. Probably webers or solex or something like that. But boy I would love to be able to just hear one of those engines run.
@@d4a talking abt solex, i heard N2 machines run on twin solex right?
Its so intuitive. I remember the first time i did mine.
Then I found one that does all four on one shot.
Hell yeah! the video i was waiting for!
cant wait for the detail guid for the carb tuning video !!!!!
briliant videos mate. thank you
great video and great info! thanks!
I love your videos! I have an 86 aw11 that I'm putting Weber carbs on and I want to put a points style distributor on it so I can completely get rid of the ecu because everything will be mechanical. However, I haven't been able to find any info regarding points ignition beside converting to a older 4K distributor, but there is still a lot of confusion regarding that conversion. Hopefully you have some Info that may help myself and others who have this issue. Thanks again for sharing your knowledge of the aw11 platform with all of us on the web and I hope to see many of your amazing videos in the future!
Thank you, glad you liked the videos. Here's what I know. Older distributors that were on carbed engines have something called a vacuum advance. The higher the rpms the more vacuum is generated and thus more ignition advance. The stock distributor that is on the 4age engine will not provide advance without the stock ECU. You can get it to run without the ECU but what people did in that scenario is to "lock" the distributor at a fixed advance. In my opinion that is garbage and results in very poor performance and makes carbing seem stupid. So to be fully mechanical you will need an older distributor. What you need to figure out is how to get vacuum advance from the weber carbs to that distributor. The 4age has ben webered many times and I'm certain there's a lot of good info on the club4ag forums.
I was actually wondering about it and I saw this notification
nice all i knew about was the vacuum gauges and hose between the throttle plate and the valves way, that uni-syn is a nice little tool. I see that coolant reservoir is still looking good and you can see the level easily.
Good eye! Yup coolant overflow tank still looks good, that cleaning paid off :)
@@d4a that was the video that got on your channel!
like always, best content goes to D4A !!!
Good stuff Maynard!!!
Maynard?
I used to have of those to balance the dual carbs on my old 67 Triumph Spitfire
pretty nice) ... where did you get your vacum source for the brake cylinder or other vacum based devices from the engine bay?
Does your setup have the potential of evening out fuel delivery better than a wet manifold of the singular carb variety? Keeping fuel in suspension better and evenly
Hello, I have a very similar set up as you (r6 carbs, 3sfe Celica engine with nodiz ECU). On initial start I've got a misfire situation on cylinder #4 (this is the same cylinder to which I've got the vacuum hose connected to the brake booster). I've confirmed I have spark. Any ideas or suggestions? Thanks! Love the videos by the way!
Love it!!
What fuel adjustment on a carb bike on stock 4age engine. How much psi i put on fuel regulator.thank bro
Awesome video mate! Just wondering if you changed your jets? I have cbr600s on my 2E.
Changed mains all the jets several times to experiment, but I think I stayed with stock mains in the end
can this manifold for 03-04 YZF R6 /06-09 R6S Carbs?
Will this tool work for fuel injected ITB's too?
silicone hose’s brand please (maybe a link?)!
great
"pulling the same amount of air" also means same amount of fuel in the CV carbs world, worth mentioning
doesn't that also depend on the jets adjustment?
Curious how well the carbs are controlling your AFR, since it is not controlled by an ECU anymore. Do you have a way of monitoring while the car is running?
I have a wideband. AFRs are pretty stable now.
@@d4a hi i am using exactly same set up as you have on ur mr2 mk1 ie 4age engine nodiz ecu and dan st engineering carbs. I have installed a wide band afr. when the engine starts the afr reading is 11ish but while driving it stays at 9. Is this good or I need to do something. I have booked a turning with Dan st engineering on 19th of August but need your view
I keep wondering why do u have to install 4 bike carb?
Isn' t just one bike carb is enough...after all car enggine only works one piston at a time....
With only one bike carb u dont have to balancing anything...
Where did you get your velocity trumpets from?
Custom made by DanStengineering
Hello как насчёт фильтрации воздуха ? фильтра же нет ...не убьёт ли это двигатель
Конечно убьет.
Есть индивидуальные фильтры(ставятся на каждый дроссель) а есть общие ресиверы( на все 4 сразу, но таких я ни разу не видел)
👍🏼
How it is during cold weather does it run smooth as well
Beautifully smooth. I have never driven it at sub zero temps, but I have started it at sub zero temps and it starts right up.
@@d4a keep up the good work, i'll have to save up soon since i already have a standalone
Why not just turn the screws the same amount of turns ?
Because not every cylinder has the same compression and doesn't draw in the same amount of air. Every engine is like that which is why sets of 2 or more carbs can only be balanced on the engine and while it's running.
@@d4a hmm,i didnt think of it,that actually makes sense its nice to learn something thank you
Pog
Hmm the 1.2k idle is a bit high but ehh idk I'm just a 14 year old weeb that has 0 experience
Stock idle of the 4age is 800 rpm or so, which means you're right. But carbs change a lot of things. The engine can run at 800 rpm with the carbs too, doesn't run too bad at all, but I kinda prefer the way it runs at 1300, runs a lot smoother :)
Hello 14 year old weeb, take it from a 29 year old weeb that has this same model of MR2, an idle of 800 RPM is just not going to happen. It's not uncommon for these cars to idle at 1200-1600 RPM. Mine hovers in and around this range most times. I can adjust the idle position screw to get it to around 1000 RPM after the car has warmed up, but then cold starts are rougher.
Also, four cylinder engines always have a secondary force issue that causes the engine to vibrate. This becomes more noticeable the lower the RPMs; and so it can often be easier to set the RPMs higher to feel a smoother ride when idling.