Question about Yamaha YZF-R125 Motorcycles

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Our scooter sat for 9 months in storage. When we got it out it wouldn't stay running. We ran the old gas out and put new in it and it still wont stay running, but if we take part of the fuel line off it will stay running but all the gas runs out. Yamaha vino 125 2009

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Its probably your fuel filter... When a motor sits with fuel for a while it will begin to varnish which will clog the fuel filter and sometimes cause the float or jets to stick or get clogged. But if it works with the fuel line detached I can almost promise its a fuel filter issue. If that doesnt clear it up check the petcock valve at the tank.

Posted on Apr 11, 2011

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Posted on Jan 02, 2017

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My 01 katana been sitting up it will crank idle for a few than die out and wont crank until it sit awhile


Hi, Kevin and the usual suspects are:
1. Idle circuit and transfer ports clogged.
2. Air fuel mixture adjustment too lean.
3. Pilot jet clogged.
4. Faulty accelerator pump.
5. Float level too low.
6. Float bowl contaminated old fuel, water, dirt, rust, etc.
7. Float bowl vent or overflow tube clogged.
8. Fuel flow to carburetor restricted.
9. Intake manifold leak.
10. The gas cap is not venting properly or fuel tank venting system blocked.
11. Vacuum line from intake manifold to petcock broken, cracked, or not attached, carburetor vent line plugged.
12. Needle and seat stuck closed in the float bowl.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have nice a day.
Bike dies when you give it throttle
Suzuki GSX600F Service Manual
OEM parts for Suzuki
http://mybikemanuals.com/suzuki/suzuki-gsx-owners-manuals

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The Scooter was only ridden for 63miles around neighborhood. Then sat for about six months now wont start was told gas could be old. What to do


Best bet would be to empty the fuel left in it then buy some fuel stabilizer and refill fill the tank with good gas also check the battery and fuses.

Feb 19, 2016 | GAS Motorcycles

2 Answers

Scooter has 40 original miles.New,old gas, I put innew gas. It starts,idles only, if I give it gas it stalls and won't run..


Hi, Rick if your bike has been idle for months or years and does not want to start you will have to deal with a few remedies:
1. Drain and flush fuel tank, google " how to clean a motorcycle gas tank" find a couple forums to view the different options available.
2. Remove your air cleaner and clean and re-oil per Mfg. specifications.
3. Remove the carburetor, disassemble and decontaminate with a carb dip or if you have EFI remove injectors and clean with carb spray and compressed air
4. Remove fuel valve and filter disassemble and clean as necessary, remove fuel lines and replace with new ones.
5. Replace spark plug with a new one and check for spark.
For more information about your question please visit the website below. Good luck and have a nice day.
How to clean carburetor in 15 minutes

Nov 25, 2015 | GAS Motorcycles

1 Answer

Will start but wont stay running


No the missing O2 sensors would not keep it from running. The missing exhaust pipes might not help matters. No exhaust system would cause a lack of back pressure.
I would want to know what base fuel pressure is with a gauge before and after cranking. Your thought about bad gas is legit, today's gasoline is only good for about 2 or 3 months before it starts gelling up.
Did you replace the inline filter the last time you put the new pump in ? And are you sure the pump is getting power after the key is released?

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Scooter won't stay running


tryijng running some stable throught that might help, even tho you ran carb cleaner through it there could possible still some gump stuck in the carb or fuel lines

Jan 03, 2014 | Motorcycles

1 Answer

Truck shuts off while in park idling.


Your car is 18 years old. It's likely history. Sell it as is for what you can get.

Jul 15, 2017 | 2000 GMC Yukon Denali

1 Answer

Scooter sat for a year; wouldn't start; replaced battery. filled with gas. cleaned spark plug. won't start. Help


after a year sitting idle chances are that the gas inside the carb has degraded and the carb will need cleaning also when you filled the tank did you remove any old fuel? if not the its contaminated with the old gas
give it a full service new feul clean carb clean air filter then it should start

hope this helps

john

Jun 30, 2011 | Aprilia Scarabeo 50 Four Stroke...

1 Answer

Bike starts well, 2006 but only has 1000 miles on it. sat in storage during move (7 months). drained gas and disconnected battery. idles fine but when you give the the gas to go or give it gas period it...


If the bike ran fine prior to putting it in storage and all you did was drain the fuel and disconnect the battery, its likely moisture ( condensation) developed in the carbs while it sat. this type of thing happens when fuel is drained. Your best bet is to remove the carbs and clean the jets. Its my opinion and experience to put fresh fuel in a bike along with (stable) fuel treatment prior to storing them. With the stable added to the fuel, the fuel will hold good for about 1 year.. Replacing the battery and starting them and letting them warm up to operating temp monthly while in storage is always a good idea..
I hope this helps..

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1 Answer

Golden gb 106 , one year old , used one week , sat for 9 months , batt will not charge, company says i have to buy new batterys because they ran down too low and can not be charged up again. is that true,...


Hi. What they are saying can happen. Batteries will not last if they are sitting around not being used. Did you have a warranty on the batteries and machine when you bought it. Most reputable companies will give a 12 month warranty on the batteries. The battery size you quote is a very small battery for a mobility scooter. How far do you intend to drive it? The life of a battery is determined by "charging cycles". If you continually run a battery flat each time you use it, you might only get a 100 or so uses out of it. But if you only use 25 % of a batteries capacity, you should get many 100's of trips out of the batteries.
With the size of battery you have, it will be very hard not to flatten the batteries all the time.
This sized machine is probably intended for inside use only. Good luck. Neil.

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