How To Adjust Motorcycle Carburetor Floats.




What do you think about this video?

Lee Skinner: I have a 1977 yamaha xs4 175cc enduro is it a two stroke or four stroke engine ?

Ryan Bell: Hi, just wondering if you would know anything about my bikes problem. It tipped over one day and ever since it hasn't been running properly it runs fine in first gear but the second i change out of first it start spluttering and losing power as if its not getting enough fuel or too much fuel. Do u think this could be because the float heights are knocked off when it was on its side?

Rusty Nails: I opened up the carbs before installing them and they were nice and clean. I removed the air box on my bike with the old carbs and put pods on and the pipes have holes drilled in the baffles for a throatier sound. It ran great with the stock carbs after being synced this way.
 I opened up the fuel screws to 3 full turns on this set and it runs good after it warms up a bit, but until then it idles low. At times it seems to get stuck at a higher idle and then I let off the clutch a bit and it drops back down to where it should. I'm not a mechanic but I've done all I know to do except using a sync machine which I don't personally have.

Rusty Nails: I ended up replacing the carburetors with a better set of used ones and they have an idle issue as well and can only think they need to be jetted/synced with a vacuum sync machine. Other than that the bike runs well and starts up just fine. Could what I mention be the problem/solution?

communicate17: Good explanation 

Rusty Nails: Could a stuck float and needle cause idle problems? I've cleaned the carbs thoroughly and used float needle, gasket, etc rebuild kits and noticed one of the floats occasionally sticks. I thought I fixed it and re-installed the carbs but my idle goes from 1100 rpm to a stuck 3000 and I don't know what else it could be.

Ed Kastellon: Hi Master..

Watching this video.. and need some advise and guide from you..

My honda rebel 250 1986, is running rich according to the spark plugs.. carb has been complete cleaned with chem dip and sonic cleaner by a friend.. compression test.. done... and the last thing i've heard is to check for my float.. as i see in your video.. so.. just want to confirm with you.. could this be the source of my problem..??? any extra advice to solve a running rich condition..???

I'll truly appreciate your comments..

Thanks..!!!

john miller: about the needle, while adjusting my float height i noticed that there is approx. 1/16" to 2/16"th of a gap between the tang on the float and the wire on the needle valve that slips over the tang.  When the float travels its full distance, closed to opened, it appears that the spring loaded needle valve opens/closes just fine, however the needle doesnt move within the needle seat.  I would expect the needle to move slightly from closed to open!?  The wire that slips over the float tang is actually 2 independant wires that meet in the middle over the top of the tang on the float.  Im guessing that these wires are out of adjustment.  Im inclined to bend down the 2 wires that slip over the tang on the float, to close the gap and allow the needle to open/close within the needle seat.  I am riding a 1998 Suzuki VZ800.
Also, in your experience could the tang on the float become bent and out of adjustment due to a crash?  I recently learned the lesson of cold tires on a cold road, lost rear traction when i gave it a little throttle and went down like a load of bricks at about 30-35mph.
Thanks bro!!

Brad Wilde: Nice Video. Easy solution to what looked like a daunting task.

Double Red_Rolex: Did u watch the video? It was one of the first things he said...

mrmaxstorey: What kind of bike?

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.

mrmaxstorey: Your engine's shaking like crazy? Maybe you have bad engine bearings?

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

Mr CodPickles: THANX MATE HELPED ALOT WE ADJUSTED THEM TO THE RIGHT MM AND IT RUNS SMOOTHLY JUST HAVE TO WAIT TILL THE MORNING ONCE ITS COOLED DOWN TO SEE IF IT STARTS ON A COLD START OK

Hypnotized81: Thanks man. I'll do that.

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

Hypnotized81: Hey man nice vid. My carb float seems to get stuck making my bike turn off and impossible to restart. My mechanic says I should change the whole carb as he can't guarantee to repair it successfully. ' You think he is trying to reep me off?

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

Rating:
How to adjust motorcycle carburetor floats. 5 out of 5

Shared by Others

How to adjust motorcycle carburetor floats.
How to adjust motorcycle carburetor floats.
Carburetor / Carb Leaking Gas? How to Fix / Repair it. Motorcycle Honda DIY Tutorial clean
Carburetor / Carb Leaking Gas? How to Fix / Repair it. Motorcycle Honda DIY Tutorial clean
Adjusting Carburetor Float Level
Adjusting Carburetor Float Level
How to diagnose carburetor vacuum leaks on your motorcycle
How to diagnose carburetor vacuum leaks on your motorcycle
Motorcycle Repair: How to Clean a Motorcycle Carburetor
Motorcycle Repair: How to Clean a Motorcycle Carburetor
Motorcycle Mikuni CV Carburetor Cleaning for Suzuki. Honda. Yamaha Tutorial
Motorcycle Mikuni CV Carburetor Cleaning for Suzuki. Honda. Yamaha Tutorial
Randy's Cycle Service Explains Carburetors. Choke & Cold Starting - vintage motorcycles @ rcycle.com
Randy's Cycle Service Explains Carburetors. Choke & Cold Starting - vintage motorcycles @ rcycle.com
Pilot Air/Fuel Screw Adjustment Explained
Pilot Air/Fuel Screw Adjustment Explained
How to Properly Clean a Carburetor on a Motorcycle or ATV
How to Properly Clean a Carburetor on a Motorcycle or ATV
Idle mixture adjustment (air or fuel screw adjustment)
Idle mixture adjustment (air or fuel screw adjustment)
How Motorcycle Carburetors work and how to tune and clean them
How Motorcycle Carburetors work and how to tune and clean them
How to sync carbs on a motorcycle
How to sync carbs on a motorcycle
How To rejet and tune motorcycle carburetors using jetting kit for café racer motorcycle Filter Pods
How To rejet and tune motorcycle carburetors using jetting kit for café racer motorcycle Filter Pods
Bicycle Engine Kit Carburettor Needle Setting Tips
Bicycle Engine Kit Carburettor Needle Setting Tips
How-To: Z50A Carb Clean & Rebuild / Pilot Adjustment
How-To: Z50A Carb Clean & Rebuild / Pilot Adjustment
Carburetor Adjustment Basics -EricTheCarGuy
Carburetor Adjustment Basics -EricTheCarGuy
Farmall Cub IH 1964 Carburetor Kit Install Float Adjust - Part 3.wmv
Farmall Cub IH 1964 Carburetor Kit Install Float Adjust - Part 3.wmv
Two-Stroke Scooter / ATV Carburetor Settings And Adjustments 2of4 : Idle Speed & Mixture
Two-Stroke Scooter / ATV Carburetor Settings And Adjustments 2of4 : Idle Speed & Mixture
SHENG WEY Carb Float adjustment
SHENG WEY Carb Float adjustment
Keihin Carb Float adjustment trick!
Keihin Carb Float adjustment trick!
How To Adjust Fuel And Float Level On Holley Carbs
How To Adjust Fuel And Float Level On Holley Carbs
DIY Carburetor Synchronize / Balance Tool
DIY Carburetor Synchronize / Balance Tool
Amazing Front wheel drive motorcycle
Amazing Front wheel drive motorcycle
How-To: DIY Soda Blaster - Cleaning Motorcycle Carburetor
How-To: DIY Soda Blaster - Cleaning Motorcycle Carburetor
Classic Motorcycle Collection For Sale
Classic Motorcycle Collection For Sale
How to Clean a motorcycle engine casing using Soda Blasting - dirt deposits and de-greased.
How to Clean a motorcycle engine casing using Soda Blasting - dirt deposits and de-greased.
Suzuki DRZ400sm vs Kawasaki KLX250s review
Suzuki DRZ400sm vs Kawasaki KLX250s review
Clymer Manuals Electrical Troubleshooting Video Motorcycle ATV Quad Wiring Diagram Schematic
Clymer Manuals Electrical Troubleshooting Video Motorcycle ATV Quad Wiring Diagram Schematic
TOOL REVIEW - Carburetor Adjusting Tool For Small 2 Cycle Engines
TOOL REVIEW - Carburetor Adjusting Tool For Small 2 Cycle Engines

Featured Video