How To Adjust Motorcycle Carburetor Floats.




What do you think about this video?

nineball26: what the, your carbs sit upside down on your engine?

Kirk Conway: I could use you here guy, ive got a 92 Nighthawk 750 spent 265,00 on it to get carbs done and jetted to no avail still has flat spot on takiing off,and spits and runs rough at med rev's, pops and backfires on throttle let off. no shop tools would gladly pay a guy to do this right,

Sean Younk: Nice boots!

Michiganborn1969: Cool video Max. How often would you need to perform this procedure? When the fuel is running too rich or lean based on the condition of the spark plugs?

E3lcpl: got a 98 vtr 1000 i need to change the jet needle height, but can get the needle out? you got a video on how that comes apart ?

mrmaxstorey: What kind of bike?

Jenixon Lim: Hey man, My RVF400 won't idle by itself when cold, I have to start it and ride it, and after 5 minutes then it'll idle by itself, I've been told it might be the float heights but I've had the carbs rebuilt twice already! Could it be float heights?

mrmaxstorey: @E3lcpl Yeah I have a video on carb adjustment, but I demonstrate on a gsxr the needle just falls right out. Lots of bikes have different needles with different clips, best to look in your repair manual for how it releases.

final0222: Hi, the engine starts without problem and very smooth until reaches 6-7000 rpm, above that starts to "shake" and only with full gas goes up slowly, but I can hear it`s not normal at all.

AuAsEz: Cool keep up with the good work.

69kafil: hello mate, can you plesae please please help me, i have a kawasaki en 500 1992/93, it leaks fuel like a sive, when i turn on ignition or move bike fuel gushes out, my mechanic wants 300/400 pounds to fix it, to hell with him, can you please tell or show me how to fix it, thanks, by the way your vids are fantastic, regards kafil

Winddrifter86: 1st i'd like to start off by thanking you by making so many videos and inspiring me to work on my bike! 2ndly this is the part that worries me the most. I have a V65 Magna with a float level of 6mm, What needle are you talking about? on the float valve? and whay could happen if the float height is off in the slightest?

Kyle Baker: If it's off too much, though, your bike might run lean and not be easily adjustable; too high, and the level can overflow into your airbox, and if your oil overflow is also into your airbox, you can get gas in your oil, leaning it out and not letting it properly lubricate.

Fulanito de tal: I like all you'r videos,!!! they teach a lot!!! I really appreciate,,

mrmaxstorey: ok

mrmaxstorey: Yeah the one in my video with the 4 dials is universal to pretty much every bike, should be fine for you

Michiganborn1969: He he thanks for clearing that up:D

Sam Flores: I have 4 single pod filters the kind you get on ebay. I seen a blog that suggested that to test if I'm getting to much air wrap most of it up with duct tape? Do you think float adjustments play a role in bogging out or the main her is dirty?

mrmaxstorey: @warder105 Lol if my brain can do it, yours can too

Stephen Mc Grath: 1992 kx 250 with dellorto carb, flooding after a kick or two. what i set the float to my leg is going to fall of

mrmaxstorey: Its unlikely that the float height will be the same. Check out my other video on checking float heights with the clear tube, it might help you out.

Yaniv Nativ: hey there. very clear and good info at your video. i have a 1963 Matchless G3, can you please help me with my Carb? i see i can send in youtube a video response...so i'll do so soon.

final0222: Hello mrmaxstorey, my engine doesn't want to rev over 6000rpm, only if I force it for seconds and goes up slowly,but engine's shaking like crazy! Jets holes are clean.Can be float height? Thanks

drew robert Fickett: If I sync everything on the carb myself will I have a problem with my bike running good?

ThrasherGnar: Thought you might enjoy this...search "Balancing Carburettors with home made manometer"

69kafil: ok thanks mate, will have a go

dzlby111: arent you holding the carbs upside down? what level of tilt do you hold them while measuring

mrmaxstorey: @StreetPirate37 Haha thanks dude, let me know how it goes

mrmaxstorey: Raising the float level will enrichen your mixture, but its not a common adjustment point as I understand it because it is difficult to get consistent. The float level is always changing, and reacts to bumps in the road and banked turns, so I never use it to adjust the mixture. I would suggest you put the screws back to close to stock, get smaller sized slow jets, and larger sized main jets. Sometimes the jet kits do not supply the correct size jets for your application. Message me for more help

southcoastsinner: Hi Max i put a 2001 zxr 1220 carb in my xs 1100 sport cannot get the yamaha parts, however the bike will not rev past 6000 rpm ! any idea why cheers Fraser

mrmaxstorey: I don't know what your float height is man, you gotta look that up in a repair manual

mrmaxstorey: How is the fuel flow from the petrooster? You might have a clog there, or a clogged fuel filter, etc. Its unusual that the problem is in the carb, especially since your carb is new, but check the whole line for clogs

mrmaxstorey: @seanyounk1 Thanks they are my favorite pair

lasantha.devapriya deva: hi! Is that carb of a bandit ?? tell me is 14mm ise standerd for that carb??

willhelmous: The pipe line near your thumb. What is it?

mrmaxstorey: Definitely. I have repaired to fully functional capabilities some of the most horrible carburetors you can imagine. Try to work on it yourself, you'll get it

scrambler250r: Hey man, I have a ? maybe you can answer. 99' Yamaha R6, starts easy cold, will not idle! & hard to start hot. Well I got fed up with it, was going to store it so took the tank off to let it run out off gas. With the tank off & the fuel pump not being able to pull any more gas, she sat there & idled like a brand new one until it ran out of fuel. Long story short I think my needle valves are bad. I would love to have your thoughts on the subject, Thank you. Nate.

mrmaxstorey: You are looking for the little rectangular pin with the pointed end that sits underneath the float. It moves up and down when the float goees up and down. And to answer your second question, nothing. Close enough is close enough, doesnt have to be perfect down to the nanometer.

mrmaxstorey: What intake mods does it have?

mrmaxstorey: @jorquerdom Ha thanks man

TheEddiegajdosik: Great videos. Thanks man!

mrmaxstorey: @69kafil Hey Kafil, go to my channel and check out my video about leaking carbs, the problem described in that video is the most common cause of badly leaking carbs. I have other carburetor maintenance videos up as well which should be able to help you out.

Ian Velasco: 14mm height is the standard?

mrmaxstorey: Without any tools its hard to help you out. If you could take the carbs off and take them apart I could walk you through the process of looking at what hes done, and doublechecking his work. Since not, I say get your money back or hold him to his work

mrmaxstorey: Could you be more specific?

dalessio32: I've been cleaning out an old set of Mikuni VM29 carbs for the first time. They have brass floats and I'm noticing when they're pressed with my finger the very end of the float sometimes catches and sticks to the adjacent metal surface. Should I be worried about this under normal riding conditions? Or is the pressure from my finger more than anything the floats will ever experience while bouncing up and down on the road?

boondockdread: max makes the best vids

mrmaxstorey: @fritziv No. All bikes are different.You need to find the specific height for your bike

mrmaxstorey: That duct tape test is not a reliable way to tune your bike. Similarly, even though increased float heights will make the bike run richer, it is also not reliable and not a part of the tuning process. First, you gotta make sure your carbs are spotlessly clean, then you adjust your jets and slide height until you have smooth power throughout the powerband. My video on adjusting carb jets demonstrates the process

mrmaxstorey: Could be. Could also be vacuum leaks, or valves out of adjustment

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