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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24
votes
4answers
374k views

Symptoms of Lean or Rich carb settings on a motorcycle

I have a 1981 Yamaha XS650. I recently put in K&N stock replacement filter (ie, they are in the airbox and conform to the size of the original), however they may be leading to a leaner mixture ...
11
votes
2answers
1k views

Motorcycle Four Body Carburetor Synchronization Balancing

I would like to adjust four-body carbs by myself, in order to avoid spent money every time. What are the basic rules, tools and secrets of synchronizing multiple carburetor bodies?
9
votes
1answer
1k views

Carburettor jetting on installation of aftermarket air filter

I have a 150cc motorcycle and am planning to install an after market air filter(K&N) since the stock one was favoring fuel efficiency and not performance. The bike has a carburetor (Mikuni) not ...
6
votes
2answers
3k views

Basic operation of a choke valve

As user Steve Matthews pointed out on my last question Car interior rattles on idle The ideal use of a coke is "Use the choke until the car warms up properly. You can reduce the amount of choke ...
8
votes
2answers
20k views

Carburetted motorcycle stalls when accelerator is applied

My father has 1995 Kawasaki VN 800 Vulcan with low kilometrage (18 000, 11 000 miles). We had installed new Vance & Hines pipes on it (in hindsight, way, way too loud, but that’s beside the point, ...
5
votes
2answers
3k views

Aprillia Pegaso 650 won't start after cleaning carbs, what might be wrong?

I have a 1999 Pegaso 650 which has been sitting idle for about 7 years. The carbs were quite bad shape when I got it. The first time I cleaned the carbs I was able to get the bike started but it was ...
12
votes
3answers
3k views

How do you get the carburetors out of a 1983 Kawasaki KZ1000 P?

It's a 4-cylinder engine, and the carbs are really wedged in there. The best way I know is to loosen the boots on both sides, pull the carbs back, and try to slip them out sideways, but what a pain! ...
6
votes
1answer
2k views

Yamaha Seca - Motorcycle Idle problems

My motorcycle (1982 Yamaha Seca 650) has had a strange problem with the idle for a few years now. I have not been able to diagnose it and I'm hoping that someone here might be able to help. It starts ...
0
votes
2answers
1k views

Royal Enfield classic 350 engine off while running

I bought a brand new Royal Enfield Classic 350 and I rode around 1200 km. Since the delivery of bike, I have faced a recurring problem with the engine shutting down while the bike is running. When I ...
10
votes
1answer
459 views

Is it possible to fit mashroomhead air filter in Honda Stunner CBF 125?

I have Honda Stunner CBF 125 2009 model. I just need to know is it possible to replace the typical air filter with mashroomhead air filter to improve the bike performance? Is there any other way ...
9
votes
1answer
2k views

What is the yellow precipitate in my outboard's carburetor?

I've got a 2008 Tohatsu 9.8 HP four stroke outboard. My low speed jet keeps getting fouled and on several occasions, I've found yellow almost crystalline "growths" for lack of a better word inside ...
7
votes
1answer
1k views

Vespa PX 150 Fuel and Carbon issue

I am using Vespa PX 150.It is using Contact Point system. The issue is it is consuming fuel more than average and the plug is full of carbon after approx 50 Km.The engine not start unless I clean the ...
5
votes
3answers
3k views

straight pipes and carb rejetting?

I have a 1984 Honda GL 1200 standard wing and I am going to put straight pipes on it, however some forums say I will need to upjet the carbs, and others say I will not. Has anyone on this site ever ...
5
votes
2answers
751 views

Why does the bike idle lower after balancing carburetors?

I have just balanced my bike's carburetors (they were initially way out of sync). It idles lower and seems to smoke more when I rev it (smells rich). Returning it to it's previous out of sync setting ...
4
votes
2answers
2k views

What Mikuni carb model do I have?

I have a Yamaha XS750 1979 rebuilt as a cafe racer (not by me). I need to buy some parts for the carb, but cant seem to find out what carb I have - no ID number anywhere. I think the original is ...
4
votes
3answers
337 views

Bad pitting on carburetor causing small fuel leak

I have a Motorcraft 2150 carb which has some pretty bad pitting on the main body. The pitting caused like two small holes and is causing fuel to slowly drip. I can only see the holes from the outside ...
2
votes
2answers
1k views

What is this part of my Carburetor ? And what does it do?

My car is a 1987 Toyota Tercel DX Wagon 1452cc 2bl manual driven car. Carburetor of it is a Aisan 14120 Two Barrel carburetor. I have removed the carburetor of my car for repair. I know all the ...
1
vote
2answers
241 views

Small engine starts then stops

A craftsman mower did not start at all. I cleaned out the carburetor, cleaned the passages on the bowl bolt. The air filter is clean, the fuel drips in a 1/8" stream without the bowl attached. ...
0
votes
4answers
202 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 ?