Like not even that pulsing vacuum ive come to expect. I hope this video will help you to set up the vacuum line on your gy6 150cc scooter. A can of carburetor cleaner, an 18inch length of 12inch fuel hose and. Remove it at the manifold end and suck on it, to make sure that the fuel tap opens.
I took pictures of all of the hoses to show you and whoever else wanted to see. The fuel lines are a metric size in between the 316 and 14 size fuel lines, the same for the vacuum line. Find the right vacuum lines for your vehicle and engine today at summit racingshop now. Check the fuel vacuum line to ensure it is attached. Fuel line from the fuel valve to the carburetor or fuel pump clogged. To find your vaccum leak, choose one of the above and spray or point in the suspect areas while engine is idling. How to replace vacuum line on total 50 scooter fixya. First, it depends on which vacuum line and where its going. When a vacuum leak is significant it can cause the motor to shut off entirely or to not fire up at all. I also noticed at that point that there seems to be no suction at the carb if i put my hand over the throat. The scooter started immediately and run great after that. Shop the top 25 most popular gy6 fuel pump at the best prices. Many of our vacuum lines also come with fittings to give you a leakfree, troublefree connection.
Some of the biggest carbureted motorcycle repair headaches can come from the smallest of problems. Symptoms of bad or failing vacuum hoses yourmechanic. There are three types of pumps that are used to move fuel from the storage tank to the engine of a scooter. I finally ended up draining all of the old gas and refilling with fresh gas. Even a small kink in a fuel line or vacuum line can shut down the bike or. Make sure your vacuum line from the petcock is not cracked leaking.
The carburetor can be affected by debris in the fuel supply, which prevents the. Inside most combustion engines is a sensor that monitors the vacuum pressure inside. Vacuum leaks are often caused by small cracks and holes in the various. A carburetor manifold leak can display an array of symptoms at different times during the motorcycles operation. Vacuum leaks, or air leaks occur when two adjoining parts either are not tightened together correctly or when a gasket between two parts is no longer sealing the parts properly. Domestic vtwins suffer intake leaks, too, but usually for different reasons. The fuel line leads directly into the floating chamber. The most common area of vacuum leaks are the carb holder rubber boots. Make sure your petcock is operating properly while you are at it.
I show a common issue that causes a bike not to start. I was careful to take photos of all fuel and vacuum line locations that i removed. Scooter runs short distance then stops running like not getting gas, parts for this in description duration. Vacuum line to fuel valve cracked, broken, pinched, or missing 6. This video will show you which vacuum hoses you actually need on your gy6 scooter and how to hook them up. A fuel leak on a 50 cc scooter is usually caused by a problem between the fuel tank, fuel hose or carburetor, if not all three. I know its not the proper use, but i am currently using it as fuel line on a scooter, but also repaired some vacuum leaks on my truck.
Make sure that all your vacuum lines are as short as possible, have no. The vacuum lines pull fuel, provide air, and operate emission control devices. Howhit 150cc gy6 vacuum line diagram 98,670 views weve launched an improved gy6 technical center for 2014. If it is attached check the full length of the line for any kinks. I am very wrench handy and purchased this scooter fully well knowing id be working on it. Often, bikes will develop intake leaks from a rubber hose that was run to actuate an item, but the hose deteriorates. In the future, use a fuel additivecleaner and let your scooter warm up a bit. These hoses crack and break way too easily causing no fuel to get to the carburetor. If not, you have either a bad petcock, a clogged filter screen in the gas tank, a cracked vacuum hose, or a clogged fuel line. Many of these hoses control your cars idle, emissions components and environmental controls such as. If the scooter doesnt start after a long while sitting around, a first try is to completely drain the carb. If the motor isnt turning over there is no vacuum, and the fuel supply is shut off. I finally got up the courage to clean out the carburetor and.
Propane take the tip off and attach a long rubber hose wd40. Vacuum line from intake manifold to petcock broken, cracked, or not attached, carburetor vent line plugged. It only has 2000 miles on it, so the engine is in good shape i believe. The piston creates a vacuum in the cylinder above it, and this suction sucks the air in through the carburetor. The upper part of the carb usually has at least two ports. At autozone, we carry a wide range of tubing to repair any issue you may have with your vacuum system. Ive never even seen a piaggio typhoon, but a vacuum tap usually has another line attached to it. Scooter troubleshooting scooter wont run all about scooters. Often, bikes will develop intake leaks from a rubber hose that was run to actuate an item, but. High quality fuel, vacuum line for scooters by quality scooter parts. How to simplify vacuum hoses on a scooter paul shpakov. Try this test a few times to make sure it is working properly. Scooter fuel, vacuum line by quality scooter parts. When you start the scooter it doesnt create enough vacuum at times to open this valve and feed fuel to the injector.
This all started with a broken vacuum line, the clear one thats close to the exhaust and often cracks right side of scooter. Start with a vacuum hose diagram, which you can find in a repair. How is the vacuum line set up on a gy6 150 cc chinese scooter. Chinese scooter club view topic vacuum line diagrams. Choose vacuum hose from acdelco, scott drake, classic tube, goodmark, auto metal direct, and others.
The repair is to replace a cracked vacuum hose or line. If you have an air leak, the suction sucks air in through the gap between improperly joined parts instead. A vacuum hose is a rather inexpensive component, but its very valuable in the overall operation of your car, truck, or suv. Fuel flow problems can be caused by a clogged fuel filter, a clogged fuel line. Carb holder vacuum leak rubber boot stretched cracked. Learn how to track down motorcycle vacuum leaks like a pro. Performing maintenance on your scooter will make your warranty null and void. The rubber degrades over time, dries out, and can begin to crack or become brittle. Make sure that the clamps going from the carburetor into the intake manifold are secure. How to replace vacuum line on total 50 scooter motorcycles question. Fuel valvepetcock clogged or diaphragm cracked, cut or torn 7. A list of common china powersport problems and tips on how to detect and repair them yourself. However, i have noticed that the rubber intake manifold has a small crack on the top, and i have not found anywhere that sells replacements for this part.
Symptoms of a motorcycle carburetor manifold leak it. If no gas comes out then you either have the hoses connected wrong or no vacuum due to vacuum. Short version 1 if i suck on the yellow tube in this photo to create a vacuum on the lower connection, and fuel does not come. My suggestion is to not add too much fuel at first. Two hoses that run from the carburetor is the upper hose cut and zip tied. An increased and steady idle speed can be one of the best warning symptoms for detecting a carburetor air leak. Any change in idle rpm, whether up or down indicates a vacuum leak.
It is a hose, be it rubberflexible or hard plastic, that carries a vacuum. A pneumatic or vacuum pump uses air pressure to push fuel from the holding tank into hoses that deliver the fuel to the motor. Carburetor air leaks, typically known as vacuum leaks, can be one of the most baffling repair problems. Which means under low vacuum it closes, it is spring loaded also so this is the problem. If you are looking for the cheapest parts on the block you have come to wrong place. Intake manifolds free delivery possible on eligible purchases. In this picture, the arrows show here the one vacuum line or something was hooked into the carb. Every car on the road since the invention of the combustion motor has used the motors vacuum to perform many functions, but just how does it work a motor can be looked at as a giant air pump. If attempts to turn down the idle speed adjusting screw have failed oldmake carburetor, it means the blend of air to fuel ratio has changed in favor of too much air passing into the intake manifold. I would like some advice on how to go about solving a very confusing series of problems with my 9qmb gy6 scooter. If you dont have a stethoscope, use a hose or tube to localize sound. Take time to be proactive and recognize these symptoms. Place a suitable container under the fuel line and draw air on the vacuum line to the petcock if so equipped and see how well the gas flows.
This other line is what supplies the vacuum to turn on or off the tap. In most cases, leaks are caused by a damaged fuel tank, a broken fuel valve seal or a damaged fuel hose. Sometimes the boots look fine until you bend or stretch them, which can reveal cracking. Run a single, long hose from the left fitting on the intake all the way up to the petcock. If that line is cracked there is no vacuum and the tap isnt turned on. I take the vacuum line off and cut it and put an inline vacuum check valve or one way valve. Buy tank gy6 150cc 250cc chinese scooter parts vacuum pump 3 outlet fuel pump gy6. Diagnose motorcycle vacuum leaks how to motorcycle repair. The engines idle speed is usually the first indicator of a manifold leak, preventing the engine from starting or creating an erratic engine idle speed that shifts between 500 to 2,000 rpm.
A small vacuum leak can cause big problems with your carbureted motorcycles drivability, performance and even fuel economy. Symptoms of a motorcycle carburetor manifold leak it still runs. Troubleshooting your scooter my scooter is not charging my scooter will not start my scooter is hard to start starter is working but scooter will not start. Knowing what faulty vacuum hoses look like is an important part of keeping your car in good condition. Yes it could be your petcock or your vacuum line going to it is cracked and a hose came off so look around and check the vacuum line going to it. Discover all the ways our vacuum tubing can help you get more out of your vehicle today.
Check vacuum hose connectors for cracks that may leak vacuum. Honda scooter info center honda maintenance schedules and general info. I recently purchased a old scooter from a friend, however it has been giving me lots of trouble recently. Where to find the best vacuum connector and tubing replace broken vacuum tubing with the best vacuum connectors and tubings for cars and trucks. Best value gy6 fuel pump great deals on gy6 fuel pump. If you are looking for chinese scooter parts, you have come to right place. Carburetor manifold leaks introduce more air into the mixture of air and fuel. Take the hose off the carb and stick it in a container and crank the motor over. Discover over 369 of our best selection of gy6 fuel pump on with topselling gy6 fuel pump brands. If you notice any of the above warning signs, take action and contact a mechanic asap to. Remove the fuel and vacuum lines from the petcock to the carb. Find out the common symptoms of a vacuum leak and how to find them in your. So i hooked the vacuum line back up and cranked and there was no fuel coming out of the gas line. Why because we install these parts in our customers scooters.
It could be as simple as the vacuum line going to the petcock is cracked and leaking and it will not open the diaphgram in the petcock to allow fuel to flow through it. The scooter contents warranty i chapter 1 1 safety instructions chapter 2 3 machine maintenance. It will fill up with fresh fuel from the tank, which will burn better. Theres a thin pipe that goes from the fuel tap to the inlet manifold. How to repair a gas leak in a 50cc scooter it still runs. I did a compression test and got about 92psi on the electric starter. If you dont know where the petcock is, follow the fuel line from the rearleft side of your carb. Were in the process of bringing all of these old articles to the new system. If the pipe cant hold a vacuum by you sucking on it, then it needs replacing. Start with the obvious, looking for tears, cracks or holes within the manifolds rubber bodies. My guess is that the vacuum line to the fuel tap is cracked or damaged. Tank gy6 150cc 250cc chinese scooter parts vacuum pump 3.
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