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

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16 views

What is the exact name of this RC nitro engine specific carburator part?

I've a Traxxas Pro .15 engine with me. The rubber boot attached to "Throttle lever" on my carburetor is cracked (picture given below). The engine has been in storage for the last one year. Yesterday ...
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24 views

motorcycle sputters and temporarily dies

Recently, my motorcycle (2008 Ducati Hypermotard 1100) has been temporarily dying while riding it, usually on the lower RPMs of the lower gears. I thought it was the heat, but today in the rain it ...
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35 views

Fuel was chocking while entering into the carburetor

I'm having an old model TVS Scooty ES, as the petrol was chocking while entering into the carburetor. After cleaning the carburetor and replacing a new spark plug and I had neither rotated the Air/...
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43 views

Coleman ct200u ex minibike starts, then stalls

Have problem with my Coleman ct200u ex that is driving me batty. It starts, runs for about 15 seconds, then dies, almost as if it ran out of gas suddenly or the kill switch was pressed. Will not ...
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44 views

Why 3 x 2 barrel carbs on a v8 does not 4 x 2 make more sense with one two barrel per two cylinders

You hear of a "Six Pack" and "Tri-Duce" (carb setup with three two barrel carburetors) ... Wouldn't 4x2 barrels or 2 four barrels be better?
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53 views

Unidentified component on carburetor

A couple of days ago I went over to a friend who owns an older KTM motorcycle and as I was having a look on his motor I noticed a component on his carburetor which looked like something electronic but ...
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12 views

Sym jet sport 50cc 2 stroke cutting out

Starts up fine from cold, can ride it for around 5mins then cuts out and won’t start until cold, it’s got a good spark, competition and is getting fuel. I’ve change the spark plug, ht lead and ...
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28 views

Craftsman leaf blower, did I destroy the carburetor?

I have a very gently used Craftsman leaf blower with about a 27cc 2-stroke engine. It never ran all that great, mostly it would start up fine then run for about 4 minutes until it started to slowly ...
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59 views

carburetor Leaking gas oil mix when fuel lines replaced

Disclaimer I know this is for a blower not an engine, but was not sure where exactly to pose the ? I'm trying to assemble the fuel lines for the Ryobi BP42 two cycle blower, someone else took it ...
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1answer
14 views

New carburator gas coming out of small tube inside

I installed a new carburator on a 6.5 hp Tecumseh motor for a wood chipper. After hooking the fuel line back, gas flows steadily out of the small tube inside the carb. I am not very mechanically ...
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56 views

What screw is missing from this carb (photos included)

I'm repairing a carb and the part (screw?) which goes in here broke, and I'm struggling to find a replacement as I'm not sure what to search for! What's it called? As shown in the picture it's a ...
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25 views

1998 Suzuki Intruder 1500VL Back Fires After Replacing Alternator

The bike has ran fine for around 100 miles just days before I replaced the alternator / magneto because it wouldn't keep the battery charged and would barely maintain while running high RPM's. ...
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42 views

Best Mikuni BST 40 Carburetor alternative?

i would like to know if any of you know a good cheaper alternative to a Mikuni BST 40 carburetor for my KTM 640 LC4 Adventurer? Thanks
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15 views

Ctx200 not ideling

I'm having issues with my ctx200. It just doesn't want to idle. So the history is that the bike sat for a few months not being driven, so i took the carb off and cleaned it. From then on it started ...
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61 views

Will a carbureted engine have different fuel consumption rates based on external load, with the same RPM?

I have a small Briggs and Stratton Model 19 engine, net power of 10.0 HP. If I ran the engine at full throttle without any external load connected to the output shaft, would it consume the same amount ...
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28 views

2001 katana 600f

I bought this bike not running. Did simple stuff like plugs, fresh fuel, air filter, and so on. My problem ous the bike starts great and runs strong for about 5 to 10 min or approximately a mile or 2 ...
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1answer
64 views

Poor Uphill acceleration [duplicate]

I have a Honda CBF 125 2010. It had a new chain and sprocket set fitted about 3-4 months ago and I have tightened the chain again since then (about a week ago). I have poor acceleration when I come to ...
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181 views

Do you screw jets all the way in on a PZ27 carburetor?

I rebuilt a carb from a 150cc chinese atv, after adjusting the mixture and idle screw its now running pretty well. It idles fine (it used to slowly go down until the engine stop), and from 0 to wot it ...
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125 views

Leaving Bike unused for 3 months

I am going out of country for 3 months is it okay if i leave the bike unused for 3 months ? and what to do to protect my bike for any loss ?
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60 views

Where to hook up my carburetor hoses on a 1998 Yamaha Breeze

1998 Yamaha breeze Four wheeler. Where do the carburetor hoses hook up
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185 views

Carburetor float bowl not receiving fuel on a dirt bike

I replaced the leaking carburetor on my kx125 2 stroke with a carb I got on Amazon. Brand name is Koso, it's Chinese. It worked great for about an hour on the track then the bike just died and wouldn'...
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45 views

Why might I lose power when I open the gas too quickly?

My 1990 Honda Super Cub has a problem that seems to occur mostly after it gets wet. Sitting in neutral, if I slowly open the gas it will reach full revs easily, but if I twist straight to full ...
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1972 international Harvester Scout II 345 engine - LOUD bang & PLUMES white smoke from engine

Just put water in radiator, heard and felt VERY LOUD BANG from engine and massive amounts of white smoke blew from engine when trying to start. Engine didn't turnover & turned off key ASAP. ...
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1answer
418 views

Gas leaking from this tube,wondering what exactly this tube is

Hello, I'm fairly new to mechanics of motorcycle(riding for 2 years but never tried to repair it myself till last month). As I noticed I am using way more gas than usual and there was gas odor, then ...
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15 views

1987 skidoo elan carb issues

I am trying to figure out either what model carb I have (to purchase a rebuild kit) or spec settings on the fuel/air jets. Tried to start her up tonight, ran for a minute then got flooded. Anything ...
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372 views

Vehicle suddenly shuts off while riding

I've been an owner of pulsar NS200 2017 model for about 1.5 years now , recently when I was commuting in my city at around 30kmph , the bike began to lose power and shut off . I pulled over and after ...
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32 views

Motorcycle won't start at all

I have a 2006 Honda TMX 155 which has 155 cc 4-stroke OHV honda engine. It was garaged for about two years and I decided to make it my first project to get it up in running. I'm new to motorcycles, ...
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133 views

150cc chinease dirt bike powerloss bad backfire and no idle

I have a 150cc Chinese dirt bike. About a month ago it started to bog a lot. It could only start on choke, so I took apart the carburetor, cleaned it and put it back together. The problem still there. ...
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376 views

Trying to identify Mikuni carburators on a 2.0l ford zetec engine

The only information I can find on them is stamped on the side, G549.A, T5X6, I believe they came off a Yamaha motorcycle.
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38 views

Trouble Starting Scooter after Replacing Carbeurator

Background Recently my scooter was having trouble getting up to full speed and was jerking slightly, but only when I gave it a lot of gas or going above around 35 miles an hour. After some research, ...
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43 views

Suzuki SD 110 cc

bike almost 9 years old, replaced carburetor once so it is 5 years working perfect. few days ago i changed gas filter because it was looking too sluggy. (petrol filter that not actually installed by ...
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2k views

Engine bogs out at full throttle

It's a 2002 Yamaha vstar 650 classic. Engine quit running overnight. Wouldn't even idle. So far I've fixed the intake leaks, a stuck diaphragm, unclogged two of the jets, replaced the needle valves ...
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43 views

right turn stall, starving for fuel?

I have a 1998 96" s&s with a super e carb - runs great straight up and leaning left turns but when I make a right hand turn it seems to starve for fuel and begins to stall. the turns are leaning, ...
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59 views

Bajaj discover 125(2011model) runs like always giving reserve fuel warning even when fuel is sufficient

I have Bajaj Discover 125 (2011) model which has always been taken care by me. as i dont ride bike much it only ran upto 20,000 km till now in plains. (Punjab). Everything was fine and the bike ...
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282 views

Can someone please tell me what model this mikuni carburetor is?

I've been doing some work on this one, and I'd love to find a diagram or some type of parts book for it. Thanks! Edit: It came off of a suzuki df115 outboard. There are no letters or anything on the ...
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49 views

2000 Suzuki Intruder 1400 losing Prime

Bought the bike few weeks ago not running and here is where i am today. Bike will start on choke and ide all day. I get on it and give it gas it will die. Only way it will start back up is if i take ...
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1k views

Coleman ct100u engine, no start

Verified igniton system is good, cleaned and gapped plug. The engine is is essentially pushing out gas from the carb side and not wanting to start, I don’t know what else to add I’m not really ...
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39 views

Engine dies after running for 30sec

so I have an old Renault 4 cylinder inboard boat engine here. it's older than I am and has a carburettor which you initially fill with gas by pumping it manually from an external tank using one of ...
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2answers
667 views

What causes gel'd gas in float bowl?

The attached picture shows (right float bowl) accumulation after just a week after cleaning and reassembling carbs. Just after opening the bowls, they dried bits seen in the picture were similar to ...
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1answer
65 views

Suddenly milage dropped and engine started working differently

I have suzuki access 125. Cc:125 Body Type: scooter Engine Type: single cylinder 4 stroke(SOCH) Fuel system: carburetor (ucal cv)(vm18-258 * i don't know what it means but found on ucal website) Fuel ...
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1answer
400 views

cg-125, missing problem in speed bike loose power and then regain after 1 2 seconds

Whenever i increase the speed at 1st gear the bike at high speed looses the power. On start of second gear bike start to do missing. Then at high speed problem sometime occur sometime ir doesnot. I ...
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1answer
542 views

2 Stroke making choking sound on full throttle after carb replacement

I have a Yamaha RX 135 which is a 2 stroke bike, and I have replaced it's carburetor , Previously it was stock 26mm round slide mikuni carb , and its been replaced with 30mm Flat slide mikuni. After ...
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41 views

Spark plug fouling every ride

I have a 2004 husqvarna cr125. Was wondering if anyone else was having the same issues with the spark plug fouling out often. Anytime I ride for over 40 minutes or so I’ll have to change the spark ...
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44 views

Float Height old keihin ve17b Carb Honda GB250

I have a GB250 that was fitted with a racing carb. I am trying to go back to stock. The carb I have is a keihin ve17b a Carb. There is only a float needle and a float. The float is plastic and ...
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205 views

Engine won't start without throttle-help when warm

My scooter won't start by using the kick start when warm, without help by twisting the throttle-handle a bit (at the same time as using the kick start). By "warm" I mean it's been stored in a room ...
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1answer
374 views

briggs stratton 16 hp ic single cylinder

I have a Lincoln welder with a 16 hp briggs Stratton engine that will only run with the choke closed. what could cause this?
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4answers
977 views

engine rpm stay far higher than idle when hot

I bought a Yamaha XJR 1300, 4 cylinders air-cooled with carburetors. It has a problem known from the sale (hence a very decent price), when the engine is hot, the rpm tend to stay higher than the ...
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1answer
71 views

Does the Dashpot Piston on an SU Carb effect compression test results with open throttle

I just recently got 150 PSI on my 1979 Leyland Sherpa 1.7l petrol Van with SU carb and in my limited experience thought that it sounded too high for such an old vehicle. When you do a compression ...
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114 views

Tuning motorcycle

When should I optimize the carburetor settings of the motorcycle for better performance, is it immediately after starting or after engine got heated? Problem which I am facing is: 1. When I change ...
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78 views

Suspected slow leak in carb, mileage low only when time taken to consume fuel

I have a weird mileage issue in my CB Honda Hornet motorcycle. This is a version specific to India, https://auto.ndtv.com/honda-bikes/cb-hornet-160r It has a 160cc engine. During the first 1000 Kms, ...