Top 5 Most Common Carburetor Problems & How To Fix Them

Although carburetors work great most of them time, it can be a major headache for any machine owner to try and diagnose when they do experience fuel related issues. This video provides a comprehensive guide to the top five most common carburetor issues and offers effective solutions on how to fix them. Whether it's a clogged jet, a faulty float, or worn out components, this guide will help you troubleshoot and resolve these problems, ensuring optimal performance and smooth operation of your motorcycle, ATV, or UTV. In this video, Charles gives his top 5 tips to diagnose the most common carburetor issues and how you can fix them to get your machine back up and running.

Click Here To Subscribe To Our Channel!

Follow Rocky Mountain ATV/MC On Social Media!

Chapters:

0:00 - Intro
0:40 - Clogged Pilot Jet
1:33 - Leaking Fuel/Sticky Float
2:46 - Fuel Flow
3:52 - Blaming Jetting for Problems
4:40 - Diaphragms & Rubber Parts

[OogleTheGreat]

Use non-ethanol gasoline and most of these issues will disappear. I had these problems multiple times, and once I switched to non-ethanol gas, they stopped. Not a single issue in the last 5 years. I know, the Owner's Manual says that up to 10% ethanol fuel is OK to use. It is really up to you. You can save money on the type of gas, and spend your time the carburetor on a regular basis. Or spend a few dollars more and spend your time riding. And "No", 93 octane does not fix the problem. The jets in these carburetors are small and gum-up quite easily with the ethanol gas. It took me about 5 carburetor cleanings to discover this issue. I prefer to spend an extra $1/gal for non-ethanol fuel instead of spending my time wrenching on the machine.

[kcomst]

Great video that covers all the common issues. I've been working on carbs for the past 50 years and only in the last 5 (because of the wealth of info on the Internet) have I finally understood how they work. Prior to that, no matter what the issue I bought a rebuild kit and completely cleaned and rebuilt the carb, a waste of time when 9 times out of 10 it's just the pilot jet is clogged. Love the point he made on jetting, which often gets blamed by people who don't understand. That is another whole topic that could take twice as long. One thing I would add for proper fuel delivery is to make sure your air cleaner is not dirty.

[spartan]

Charles, you are the man. I am going to learn how to be a master mechanic just by watching you perform your magic on the big screen, (my 27" computer monitor).

[jtpimm]

One more common thing to add... If you have a brass float with solder joints, check to make sure the floats aren't filled with fuel. If the floats have even the smallest pin hole, they will fill with fuel and sink, opening the needle valve, causing carb overflow.

[scottyboy]

yup- every carb issue ive had was in that top 5. excellent vid bro!

[colindoyle]

Thank you so much for this video! I've been hunting videos on bogging issues with my CRF450X supermoto before i pulled the thinking E10 fuel ate up the rubbers (not ruling it out just yet) but going step by step i figured out thanks to you I've a shitty flow coming from my tank! so fingers crossed its not the dreaded... bike strip down, carb out and rebuild!! even all local bike garages refused to take it in as they're so busy and its so time consuming so would have cost a fortune!! all happened for good reason i guess!
thanks again!! I've liked and subscribed 👍

[richardchang]

I swear Rocky Mountain knows what my probs are, have a klx250, rough idle, checked everything, now have to check spark plugs... thx thx

[cbob]

Very good video but would be nice to see the KTM-Mikuni jet block issue addressed.

[tylerganton]

Wow very helpful. I'm taking my carbs in to a professional

[ode]

Any chance you could make an advanced, “part 2” video?
The problem many of us have is not being able to understand a rich or lean condition by sound and with the bike running through its throttle range.
For instance, I commonly mistake a too-rich condition as being lean and end up jetting the wrong direction and make it more rich. There’s simply not a lot of GOOD videos that cover this real well.
I feel like you guys could nail it.

[JoshSinnott]

Im looking at buying a new drz400e in Australia. This will be my first bike. I like the idea I can work on it myself to learn and fix when im away camping.

What would you say is the shortest length of time when the bike is not in use that you'd want to be draining the carb? Is it a matter of weeks or is this only relevant up to the 6 month mark?

Great video btw 🙂

[Techumsa]

I've changed the exhaust pipe from a stock pipe to a free flow (I added my own baffle) but idling became very erratic, any clues as to why? It's a Suzuki GZ 125

[CrazyCruiserCaddy]

I have an 84 Xv1, 000, when I 1st bought it, it ran good. Stored it properly for the winter. Then last summer you need to add throttle so It can still run, when I slowly let go it will die. There is brand new coils and wires on there bcuz one coil retired. And the tank and reverse tank has been sealed and cleaned, have new inline fuel filter and hoses, the pressure of the electric fuel pump is strong. Any suggestions

[gotdoegotdam]

Hope u see this got a 2021 yfz 50 starts and runs at half throttle wide open it boggs and cuts off some fuel in the airbox what could it be???

[kasparszondaks]

bought a new 21mm PWK carb for my 49cc 2Tscooter the at first the carburetor was leaking on higher rpms but now it doesnt start the fuel just leak down the breather tube i have adjusted the float and needle so many times and changed main jets but nothing is working

[RandyLayton-kgoh]

How do i adjust a carbator on a kawiskoki fourwheeler bayou bran new

[markdeeframpton]

What about that mid-body. Also emulsion tube with a worn spot from the needle causing 0-1/4 throttle to rob off of the main circuit.

[HIncorporated]

Hello from Canada Eh 🇨🇦
I have an 2008, 883 Harley-Davidson Vero.. I think it's called

It's a nice chopper, been to shows ect. Has 890 kms on her.

It pours gas out of the carb. The pin may be clogged from sitting for years and years. I take it out when we don't have snow sometimes.. hehe

What carb kit do I need ?

[sg]

My Water buffalo Suzuki GT750 2 stroke (trip) with std Mikuni (CV) carbs. I'm seeing what looks like 2 stroke oil leaking from the overflow pipes (all three) even when the bike is not running. The bike starts easily and pulls like a freight train though. Why does it leak so much oil out these overflow pipes?

[JohnPatterson-cp]

I have fuel leaking into my oil what could be the culprit? Carbs have been rebuilt (although not really dirty or gummy at all) running non ethanol fuel as well. Smoke comes out of my right tail pipe. I can smell the gas in my oil when I drain it.