Tuning Carburetors For Throttle Lag & Hesitation

Restoring a midnight special here soon and finding your channel was the most fortunate thing that could happen. Appreciate your time and effort.

Hey man keep these videos up its been helping me alot and teaching me alot of stuff you cant find by simply looking it up

Wish my dad and I had kept an old 1975 CB500T years ago. What I’ve learned, a lot from your channel, would have helped us with that bike. Something so satisfying about getting ‘er dialed in!

Great practical advice in trying to tune it plus the range of options..

Thank you for making these videos! You are an awesome source of information on these bikes. Ive been building my own 75 kz400 for almost a year now and im down to the final steps. Carb tuning with vm36s on it now. This helps a ton! Thank you! Cant wait to see this one on the road.

I used to own a 1973 Honda CL 350. I did my own tune-ups. I learned a lot from your carb tune video.

Wow. Who knew you need to oil the air filter. Not me. So helpful. Your videos always have some tiny bit of info that I never knew about. Has anyone ever come out and said thankyou. Well, I will be that guy. From all us expert & backyard mechanics....Thankyou. Thankyou for sharing your knowledge and expertise. Years of your servicing motorcycles, and you freely hand over that knowledge to us. Wow!. Thankyou. Cheers. D.G. from Canada...eh?

One of my favorite bikes I've owned was a KZ400. I bought it with "bad carbs", prior owner gave up. Rebuilt the carbs but had the hardest time getting rid of this stumble. Wish I could take this video and go back in time 35 years. 🙂 I swapped in Mikuni's and got it running well enough to ride it to the shop, and have a tech show me what you went through. Then he said, 'you can spend weeks dialing them in... now you have something to do when you're bored.' Nice. It was a great bike but (now I know) was lean on full throttle. Those air filters would have helped that.

I've been down that road myself with the 3 cylinder Yamaha RD I built. Used oem Yamaha RD Mikunis. I got the main jet about right and from about 2/3 throttle the thing really took off. But on decel and small throttle openings it would surge and stutter. Messed around for ages with pilot jets, needles and settings but in the end changed the slides from 2.5 to 2.0. Issue disappeared straight away. Seems like we get used to changing jets but I don't hear many stories of people swapping slides which for some coukd well be the answer.

Super helpful Cody. I keep spreading the word of your stuff on the shadow riders page and your stuff is super helpful and real easy to follow even for the newbies.

Good topic Cody. One step at a time! LOL and many steps. Too many times customers want to change two or more things at once...

very nice video, I wish for more! Especially 4 carbs in line setups! BTW: I knew raising the needle would help at very beginning of video, so satisfactory to watch :D

I always wonder what the logic is for ditching the factory airbox. I have never seen an airbox that restricted air flow more than the slide(s) itself. I can understand changing the filter but every bike I have seen with the pod filters always runs worse than the factory airbox.

Just found your channel. One tip i got from my rd 350 guy for main jet sizes if if you're not sure if rich or lean go up 3-4 sizes - that should safely answer the question!

Colertune works pretty good

Good video

Hold Sh**!! Cody!!! This popped up on my suggestions. Great video homie!

I think we all have gotten in touch with our pyromanic side from time to time.

I've got a 77 kz400 with the cv carbs, I got it running good enough with the stock jets. Took me a week to finally figure out what model I had lol. I guess in late 77 they converted to cv carbs. Wild goose chase.

Try using some bleed type needle jets, they work a lot better on a 4 stroke. The primary type needle jets delivered stock in Mikuni VM's are more suited for 2 strokes.