Questions tagged [carburetor]
A device on an internal combustion engine that meters the flow of fuel at a particular dynamic rate into an internal combustion engine
234
questions
1
vote
0
answers
33
views
Cannot locate broken part on maintenance diagram - YAMAHA 2018 XV250
The following part broke off the carb, and I don't know what it is and cannot locate it on the vehicle diagrams.
As you can see, its just to the left of where the throttle cables attach, and just ...
- 111
2
votes
1
answer
27
views
Ariens 911016 mower fuel intake problems
Started up mower this season after sitting all winter with fuel in the tank. Engine will start up for a few seconds very robustly and then sputter out. It was running last season, not perfectly but no ...
- 21
2
votes
1
answer
90
views
What is the glue called sealing the joint between the air box and carb boots on motorcycles? What's an alternative?
I've got two older motorcycles, one 1992 and the other 1997. They've both got specifically shaped airboxes, and both connect to the carbs through four rubber boots, similar to those that go between ...
- 193
1
vote
2
answers
60
views
Air filter turned black due to exhaust manifold leakage
Hi.
As can you see my new air filter(that was original yellow color)is turned to black after only 2000 km due to a leakage in the exhaust manifold,which caused the burned gases(probably unburnt gases ...
- 197
1
vote
1
answer
55
views
What does a throttle valve actuator do in carburetors?
i tried looking online but could not find much information about throttle valve actuators in carburetors. I think they look like this part in the picture below circled in red. What is the purpose of ...
- 643
0
votes
0
answers
56
views
Coleman CT200U EX starts when dies
I initially was putting a new carb on but decided to just keep the stock one. I have put it all back on. But when I started it it instantly when full throttle. So I did some research and learned about ...
- 1
0
votes
1
answer
72
views
On carbureted vehicles, are vacuum lines exposed to gasoline vapors?
I'm restoring a 1985 Chevy G30 Van 5.7L, but these questions apply broadly to carbureted vehicles.
The vehicle is carbureted, and most controls for the emissions system and climate control system are ...
- 171
0
votes
1
answer
175
views
Two stroke engine with unreliable idle
I am currently restoring a Partner 22 GBI leaf blower and facing some weird issues. I have removed the carb, cleaned it in the ultrasonic and restored everything to factory settings.
After running ...
- 401
0
votes
0
answers
49
views
Does a new small-engine carb need to be adjusted?
(Stihl FS55 string trimmer)
After years of regular use, the engine degraded fairly suddenly to barely keeping alive, uselessly low power, and running very rich. For reasons good or not, I decided to ...
- 1,113
1
vote
1
answer
78
views
What could this part be circled in green of this Bizzarini 5300?
The Bizzarini 5300 GT has the Chevrolet 327 l76 small block. In some versions it has the 4 barrel holley and it looks like the regular l76 327 from chevrolets of the day but when they put 4 Weber DCOE ...
- 643
0
votes
2
answers
54
views
Motorcycle poor acceleration
I have a Yamaha V-Star 650 that bogs down when I try to accelerate. My first thought was the carbs, but she revs just fine with the clutch engaged. I don't think that was the case the last time I had ...
- 101
0
votes
1
answer
71
views
Audi 100 C3 engine stops mid drive
I have an Audi 100 C3 from 1985 (66kw). It has a carburetor, which is tuned automatically.
On random occasion engine stops working mid-drive. This usually happens 2-3 minutes into the drive- engine ...
- 103
0
votes
0
answers
14
views
Royobi BP42 took off carb cleaned and new fuel lines now starts idols then shuts off but restarts again ould it be gasket where vacuum hole is
Removed carb cleaned reassembled with new fuel lines starts runs for awhile and dies but restarts gasket vacuum hole may be leaking
0
votes
0
answers
59
views
Is turning off the engine when stopped at traffic lights bad for the car?
What (if any) mechanical issues will be caused if a person regularly turns off their engine while stopped e.g. a traffic lights?
Assuming regular production gasoline-only (non-hybrid) cars as they are ...
- 101
0
votes
1
answer
74
views
Do carburetors protect intake valves from carbon deposits?
For a long time, most car engines were using multi-point port injection that sprays fuel directly at the intake valves. Today, engines are increasingly commonly direct injected. A problem of direct ...
- 14.4k
0
votes
0
answers
65
views
Why doesn't my engine rev up when closing choke valve?
So I just installed a manual choke cable on my Mustang 1967 (Holley carb 4 bbl), and upon startup I pull the choke and see the valve close but the engine does not rev up at all. I go as much as to ...
- 113
0
votes
1
answer
168
views
How to identify a carburetor by measurements
I have looked for {model} carb, I have searched the numbers and letters stamped onto the carb, and I finally resorted to measuring it to just try to find a compatible one based on the size (28mm for ...
- 101
1
vote
1
answer
45
views
I have a 1983 ford f250, can i straight pipe it?
I have a 1983 ford f250, and I want to know if I straight pipe it, will it mess with my carburetor?
- 11
0
votes
0
answers
179
views
Carburetor not drawing fuel from tank
So the title is kind of generic, but I am facing a bit of a weird situation. I am going to explain it first, but I also have some pictures at the end that might help.
I have bought a cheap 2 stroke ...
- 401
2
votes
2
answers
234
views
What causes the noise when carburetors are out of sync?
When carburetors are not synchronized, the engine does not sound smooth.
At first I thought this is because the frequency of each piston is different, but I guess that is not possible, since they are ...
- 123
0
votes
4
answers
120
views
Does a carburetor have constant fuel mass flow, constant liquid volume flow, or constant molecule count flow?
I have a generator with carburetor. It seems to consume a bit more fuel than I expected, 0.44 liters per hour for 386 watt production, or 1.14 liters per kWh. I'm also bit more annoyed by the exhaust ...
- 14.4k
4
votes
1
answer
151
views
If I start a previously unfueled small engine, do I keep choke on for first pull only or until it starts?
I purchased a small engine inverter generator. It obviously has a carburetor and a choke valve. I just put in the oil and oiled the foam air filter element and am ready to break in the generator with ...
- 14.4k
1
vote
1
answer
677
views
Is it possible to swap the carburetor of a Briggs & Stratton 5hp?
I want to use a 5hp Briggs & Stratton engine for a kart project. That engine is based on a carburetor that is above the fuel tank, pumping the fuel thanks to the diaphragm.
I am thinking about ...
- 111
1
vote
0
answers
257
views
2005 Suzuki katana 600 carburetors not delivering fuel
I have a 2005 katana that was given to me I cleaned the carbs and it ran ok. I was riding it for a few weeks then overshot a corner and crashed, the damage wasn’t too bad scratched some plastics and ...
- 11
0
votes
0
answers
24
views
My bike is dying on random
Okay so I’ve had this bike (2004 gs500) for roughly two weeks and it’s ran perfect. Today I was riding with perfect preformence when I throttled and noticed it waited a second before doing anything ( ...
1
vote
1
answer
56
views
Gas Generator Stalls Every Few Seconds
This is a Champion Global Power Equiptment 9000 Peak Watts/7000 Running Watts (Gasoline) 8100 Peak Watts/6300 Running Watts (LPG) Electric Start Dual Fuel Generator. The following is a video of what ...
- 11
1
vote
0
answers
186
views
32/36 Weber carb MGB dies when accelerating but when the progressive second butterfly throttle valve opens it revs fine at high rpm
i have a 1977 MGB with a 2 barrel progressive throttle 32/36 Weber carb. it will idle, but if i try moving at low rpm, the engine will jolt on and off. like if i was pressing the gas but rapidly ...
- 11
2
votes
1
answer
97
views
Is my mixture too rich?
I've been running this single cyl scooter with this plug to about 30K KM (~19K miles). Replaced it today and it seems a bit dark. Is the engine's mixutre too rich?
enter image description here
- 23
-2
votes
1
answer
68
views
Regular carburettor vs chainsaw carburettor
Could someone explain their differences? By regular carburettor i mean the one which you usually find on motorbikes
1
vote
1
answer
123
views
I have a 1999 yamaha r1 and it bogs out really bad
So I've cleaned the carbs twice on this bike and its like it's not getting enough fuel because it will only run on starting fluid and I've cleaned the tank and got new hoses and still the same problem ...
0
votes
1
answer
625
views
Wood chipper engine won't start after being turned on side
I have a Merry Mac LSC wood chipper (similar to https://www.mackissic.com/product/mighty-mac-leaf-shredder-chipper-lsc/). I made the mistake of turning it on its side to remove debris from the blade. ...
- 125
1
vote
0
answers
130
views
1987 Yamaha Riva XC125 starts high then falls to low rpms and stalls out slowly after a rough idle
Intro:
Hi guys, I wanted to start by letting you all know that I'm new to motorcycles and just vehicle repairs in general and this is my first bike. I believe I have reached the point where my lack of ...
- 11
1
vote
0
answers
342
views
Gas leaking from carburetor while ATV not running
I bought a Coolster (chinese) atv for my daughter and had to do some extensive work on it. But finally got it good as new, until today. I pulled the atv out of the shed for us to ride and started it. ...
- 11
1
vote
1
answer
1k
views
Engine runs with carburetor's idle mixture screws closed [duplicate]
I have a Rochester Quadrajet on my boat and have been attempting to tune it. It seems that I'm getting too much fuel in with my mixture as I'm blowing black smoke. If I close the mixture screws ...
- 163
1
vote
1
answer
153
views
Engine hesitating to start when clutch pedal is pressed
Recently I started noticing a weird problem with my car (Maruti Alto LXI 2009, Manual petrol with carburetor) that when I press the clutch pedal and the car is in gear it hesitates (it cranks but not ...
- 243
0
votes
1
answer
39
views
Plenum in air intake system of automobiles
What is a plenum? What role does it play in the air intake system of cars?Do naturally aspirated engines use plenum?
- 101
0
votes
0
answers
30
views
1986 Dodge B250 - sudden fast idle and low "thudding" sound from exhaust
My 86 dodge van with the 318 engine recently acted up shortly after starting. This is a carburetted engine with an automatic transmission.
I was letting it sit at idle to bring the engine up to ...
- 746
2
votes
2
answers
500
views
Vacuum never decreases while leaning out carburetor mixture
I have a Rochester Quadrajet 4MV carburetor that has 2 mixture adjustment pins in the front of the carb.
As I understand it, you tune these by continually tightening the mixture screws while watching ...
- 163
2
votes
0
answers
56
views
Carburetor adjustment ordeal: always rich on mid/high revs
So I'm trying to adjust a soviet K-22G carburetor which was placed long time ago in a Chevrolet 235 6L engine. It "works" but I don't seem to find the right spot to make it run as it should. ...
- 381
1
vote
1
answer
138
views
Motorcycle V-Twin CV carbs riding poorly on 1/4-3/4 throttle after carb rebuild
Background:
The bike Suzuki Intruder VS1400 model 2000, ran fantastic, but started to stall on idle when I used old fuel in it.
What I did:
I cleaned the two CV carbs. Didn't replace anything.
I found ...
- 276
1
vote
1
answer
165
views
97 Corolla won't start. New battery, spark plugs and HT wires. Carburetor coughing smoke
My 97 Corolla won't start. The battery, spark plugs and high tension wires are all brand new. When I try to start the car, it cranks until the carburetor eventually "coughs" and white smoke ...
- 213
1
vote
0
answers
101
views
Rough idle in Ford Capri mk2 1977 V6 with Solex carburetor
I know internet is filled with questions like this but I'm out of options so I turned into stackexchange as a great source of knowledge.
So my old green capri has the rough idle.
Car data:
Ford ...
- 111
0
votes
2
answers
313
views
Second butterfly valve in riding lawnmower?
So I am helping out my neighbor with her lawnmower, tuning it up and what not for the summer. I noticed that when running the lawnmower, as soon as you take it off of choke, it revs up as fast as it ...
1
vote
0
answers
229
views
What is the plastic plug for on the bottom of an SU HS4 Carburettor Piston?
Please could somebody explain the purpose of this plastic plug on the bottom of my SU HS4 carburettor piston? The lip of the plug protrudes very slightly from the bottom of the piston (shown bottom ...
- 111
0
votes
0
answers
525
views
Scooter stalling when idle and warm
I have a 50cc scooter gy6 and it dies when stopping at traffic lights or when idle in general.
it has a brand new carburator.
Things I have noticed:
When it is cold it does not do it that often but ...
- 101
0
votes
4
answers
834
views
Beginner bike - carburetor vs fuel injection
I'm looking to purchase a beginner motorcycle/bike. I would like something that has less maintenance / potential for issues.
Which one is less likely to be an issue in a bike - carburetor or fuel ...
- 121
1
vote
0
answers
60
views
My motorcycle bogs
I have a 2007 Honda shadow spirit 750. My motorcycle Boggs when I open the throttle, it idles fine. When I bought the bike the guy said the petcock was bad and that there are bigger jets installed in ...
- 41
-2
votes
1
answer
178
views
Which model to buy in between TVS Apache RTR 160 4v Carb or FI? [closed]
I am from Lucknow, India. I am planning to buy TVS Apache RTR 160 4v but I am really confused about whether to buy a carburetor version or fuel-injected version of the same.
The ex-showroom price of ...
- 99
1
vote
0
answers
27
views
Why with the addition of a gy6 50to100ccbbk,44 stroker,20mm cvk carb with 33 pilot and 105 main jets does my gy6 engine still nog down?
Gy6 50 to 100cc Tao Tao atm-a1 50 scooter. I've tried:
Going up and down on jet sizes
Cleaning carb
Replaced carb
New pod filter
Advance timing 2 degrees
New cdl
Checked fuel flow from carb
Changed ...
- 11
0
votes
1
answer
201
views
Primer bulb not drawing fuel
I had an old 21cc two stroke weedwacker engine that I had lying around and was trying to rebuild it for use in a possible hobby project. It sat with gas for a very long time so I disassembled the ...
- 215