CV Carburetor VS Mikuni flat slide explained - ep34 - Roma Custom Bike

Excellent. I'm familiar with mikunis and I love the adjustability. I find these videos cause I got an old Honda with a muddy off idle/ acceleration until I hit about 5000rpm. Then it cleans up and the power disembark is very noticeable. Makes me thing pilot jet or ckt is clogged. Or possible my slide and diaphragm are trash
Well see. If a cleaning and adj don't fix it I'll just get a mikuni kit .

the old nidle jet - this guy really seems to know what he is talking about lol

Excellent 👍

Bro I have a problem with my Mikuni 28 mm flat slide carb with a 17.5 pilot and 260 main jet . It’s on a tillotson 212 cc non hemi with a 32 mm intake valve and a 27 exhaust valve . I have a 310 cam and it’s a stroker crank . I stay in Orange County for altitude. When I get it to start it won’t stay on for long and it runs high ! I did notice when I ingage the choke , it turns on right away . Please help ty

What about a SU carb🤔😎

Wei used to run the keihin FCR flat slide on the R6 back when they were carbureted. It gave you about 3 horsepower but required different jetting from 80-100 70-80 and below 70 degrees outside temp. If you got the needle position and slide cutout right they ran great. They don’t make the bike jerky or anything down low, if you crack it open at low rpm it just bogs the engine. If you like screwing with jets all the time have at it.

What about a d slide carb?

A great help to me. Now I am clear that in some carburetor you can control the idle speed by controlling the fuel by turning the screw where as in some carburetor you are allowed to control amount of air to the carburetor for controlling the idle speed.

Please do one of these with the FCR carbs!

Nice video, thank you for the good explanation. Would also be interested to learn about pumper carburetors.

Translation "Come to us and pay too much for some over rated shit."

Great video man. I'm about to run dual Mikuni 38mm flatslides on an Intruder.

Good vid. But you didn't mention the vacuum drop when you 'dump the throttle'. How does the flat slide maintain fuel flow when intake vacuum drops when the throttle is popped open?
For the road I'd stick with the CV40. But thanks for the vid. sub/Likie

I changed to a Mikuni on my 95 fxstsb. I noticed a little quicker throttle response but not really a huge difference.

Great video!

What are cleaner is that

It’s all about itemization , the flat slide does it better . We had big performance gains through the off idle to mid range on 2 valve Ducati motorcycles . Not only did it increase the mid range significantly but gas mileage was increased dramatically .

Cez, ma che minchia di fine hai fatto?!

Branch proved that a well tuned CV40 can perform almost as good as a HSR-42

My bike came with a round slide carb and the bike stalls if I give it too much throttle off idle any advice

Is there a advantage to a cv carb over a standard round slide carb

Great video, Thanks for putting that together. Very clear and easy to understand. :)

are you ok cez i miss you’re videos

THIS is music needs to go. great tech info and diagrams . best i seen so far. but the music is for retards and distracing. what up with the costume Jose cobrone Cez?

crf450R supermoto. i cant decide what carb. eventually gonna have the atheno 510cc kit

Meno male che hai smesso, eri più falso dei rolex che vendono gli ambulanti in spiaggia.

Nice video.. I wanna tell you that its amazing!!

What is that air cleaner and where can I get one?

For what the MIKUNI flat slide cost me it damn well better make a big difference .😠

Nice concise and to the point.

Great video explaining differences!

Why play music when you are talking - AAAAAAAAARGH -- DISTRACTS from your excellent technical information - no need to act like a music guru it RUINS your videos. Thanks.

Excelente explicacion bro, muchas gracias hno

Awesome video!

Ty!!!!!!

Thanks for your video. I think you may be referring more to these on big street bikes. I have a 1987 Suzuki DR200 dirtbike that has a Mikuni 42A21 pumper or Mikuni TM28-1 (the part #'s I have found but not 100% sure)....it's definitely a Mikuni flat slide w/accelerator pump. I bought the bike used with carb apart in a bag. I had no idea it would be so difficult to find parts for....lol. I have found CV carbs online that say they will fit/work but was unsure if I should even try? I will be just trail riding and to me it almost sounds like the CV would be better for my situation. What do you think? I know the flat slide is missing the pilot jet and extremely dirty. I just want to get it running and have no idea about engine , clutch, etc. I can "usually" tune a carb fairly well but never worked on these flat slides with the pumper. Thanks in advance for any help.

Really high quality content, love it!

Exactly right! I never did like the disconnect with cv carbs in many of my bikes. My 88 superglide back in 2000 was upgraded with the mik 42 along with pipes air filter and hot coil. Instant throttle response loved it.
You can almost feel every power pulse of the engine.
A friend has the bike now and his brother with a newer fuel injected Harley tried it out not expecting much with the old technology bike. He was speechless afterwards.

Lost me with the driver.

I had a lot of issues with my Mikuni42 and I ended up pulling it off and putting a CV back on the bike. The Mikuni was a noticeable difference but my bike never seemed to like it and the float jet constantly moved out of position and would overflow the carb. Put the CV back on and the bike sounds and feels much better (it's like those engineers knew what they are doing).

How About Its compared To other Carburetors Like The PE Series Or Keihin PWK Series TBH I have The Similar Carb Like The stock harley But its Come from Mikuni And Lot smaller Venturi

Nice good one

Excellent vid!

огромное спасибо!!!

top merci

Ciao come si fa x contatare

Could you post a link to the air intake that has on it. That looks pretty sick

Great information! I have hsr42 and been thinking how good it really iş compared to CV. This video gave me the answer. The extra noise of hsr iş something I don't like and also noticed the tender əs of throtle control, especially on low speed (in town). But as told in video it really reacts quickly when needed. One thing that wasnt mentioned in video iş the benefit of idle control on HSR. İt really helps the cold start as you don't have to use throtle for it.