Question about 2008 Keeway Matrix 125

2 Answers

Carburetor installing problem

I have cleaned the carburetor recently but I tried to install the carburetor to the scooter there was a short line that I don't know where I must connect in the scooter., the line is connected in the buttom of the carburetor which is the cover of the main and pilot jets. Could anyone offer help??

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  • 56 Answers

Agree with answer above.

Posted on Jan 18, 2018

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  • Contributor
  • 4 Answers

If it's coming out the carburetor bottom, it's probably just a drain line and doesn't connect to anything.

Posted on Jan 18, 2018

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5 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE:

Hi there,
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Posted on Jan 02, 2017

ckoira57
  • 267 Answers

SOURCE: need spects for carburetor main jet

http://www.cmsnl.com/yamaha-yz125r-2003_model11245/partslist/A-12.html

Site above has all the parts and specs for your bike. Jet ranges are large for a YZ as many mod's are available and riding conditions contribute largely to a peaky 2 banger. Start with #40 pilot, and #420 main. Trial and error from there. Cheers.

Posted on Apr 27, 2010

  • 58 Answers

SOURCE: 2001 raptor 660r with k&n

will need to fit larger pilot and main jet
size will depend where you are as colder climate will need to be richer than warm climate, normally 1 size up from std on pilot and 2 on main

Posted on Sep 02, 2010

heimlich
  • 1978 Answers

SOURCE: I just rejetted ( at least I think I did ) my

In many case when you rejet your carburetors you are only changing the mains and the needles(to get rid of the acceleration bog) If they give you several size jets to try, be sure you are putting the right sizes in the right spots. Yamaha typically will run one carburetor leaner than the other. Depending on how the cycle is running , I have known people to match the jets in both carburetors. Check the color of your plugs to double check if you have set the cycle up correctly.

Posted on Oct 11, 2010

  • 2 Answers

SOURCE: i took my carb off

if its the line at the very bottom of the carb its the overflow for the bowl and it doesnt go anywhere

Posted on Jul 28, 2011

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1 Answer

Scooter not getting fuel to the carburetor


Hi, Mark you need to locate the fuel flow origin first to isolate the problem area otherwise the usual suspects are:
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I took scooter for a ride everything worked fine get back to garage and fuel is leaking out of carborator to which it drained the fuel tank. Do I need a new carb or what's the problem.


Jason, You can replace carburetor or have the old carburetor rebuilt to fix your gas leaking problem, either float is stuck or if carburetor equipped with a solenoid shut off, are the actual problem likely.
Check the attached links,instruction and guides, Good luck
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."

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Scooter not getting gas to carb.


Silly question, but are you sure you are getting gas through the line? Could the line from the tank be plugged? How about the tank port?
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My scooter just sputters all of a second


Hi, Anonymous and the usual suspects are:
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12. Loose or dirty ignition module connector at crankcase.
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14. Incorrect valve timing.
15. Weak or broken valve springs.
16. Damage intake or exhaust valve.
For more information about your issue, please visit the websites below.com. Good luck and have a nice day.
How to test and repair the charging system on scooter
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http://www.carlsalter.com/download.asp?p=150
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Znen 125t-f scooter starts but wont go


Make sure the airbox and filter are in place and securely attached to the carburetor. Check that the carburetor is secure in the intake. Make sure no vacuum hoses are missing or ports are left uncapped. Verify that the spark plug cap, ignition coil connectors, stator connections, and grounds are not loose. The fuel lines/filter could be partially clogged. The float level (in the carb) could be set too low. The carburetor may need to be cleaned. Carburetor jetting or adjustments could be off.

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1 Answer

When primed will run for a short time till fuel runs out


Hi Charles
Sounds like you have dirt/debris in your carburetor jets, fuel passages or a diaphragm that is becoming non-flexible.
Check/Clean/Replace your Air Filter, a dirty air filter can make your engine run to rich with fuel.
Also be sure to check and clean your spark arrestor in the exaust,if you have one installed on your engine.
Note: ALWAYS USE COMPRESSED AIR TO CLEAN YOUR JETS AND PASSAGES, VERY IMPORTANT.
Note:Before you disassemble the carburetor:
Write down on a piece of paper or take a picture of how the linkage attaches to your carburetor for later reference when you go to reinstall your carburetor.
Mark each piece with a awl, or some kind of instrument that will make an alignment scratch before you disassemble the carburetor into separate pieces.
That way you will know which way it goes back together when you reassemble it.
Sometimes you can get by with priming the carburetor or by using a very small shot of starting fluid and letting it run a few times like that, and it will flush the gunk out of the jets,but most of the time you will need to rebuild the carburetor.
Be sure to check your fuel tank for water and dirt/debris, if there is water/debris then you need to clean your tank.
Check you fuel line condition after a while they will degrade and need replacment.
Check/Clean/Replace your fuel filter if you have one, normally they are located in the fuel tank of chainsaws and weedeaters.
When you remove your fuel lines from the carburetor be sure to make a drawing to how the lines are connected to the carburetor or take a pictue for later reference.
Normally the big line will be the line the fuel filter is connected to inside of the tank.The smaller of the two lines is the return to the fuel tank from the carburetor after it is pumped thru the carburetor by the primer bulb.
Make sure you are using fresh fuel...and oil if your using a two cycle chainsaw or weedeater with the oil to the right mixture...too much oil as it can cause hard starting and excessive smoking.
If the chainsaw/trimmer is over a couple of years old, then I recommend that you buy and install a new carburetor repair kit,because the diaphragm will get hard and that will cause it to be hard to crank.
The diaphgram may look good and flexible, but it can be deceiving and not act as a fuel pump as it should because it has become too hard and will cause hard starting,start and run and shut off, etc.
When you clean your carburetor, I recommend that you use a laquer thinner type cleaner to clean and dissolve the laquer build-up in the float and needle jet passages.
Be sure to remove all plastic and rubber parts before using the laquer thinner because it can dissolve the plastic parts and render them unuseable.
Be sure to use COMPRESSED AIR to blow out all the fuel and air passages.The higher air pressure is needed to blow some of the trash/debris from the fuel or air passages.
Be careful when blowing out the passages, because there are sometimes small rubber type seats in the bottom of some of the passages.
Keep in mind that the float (if you have one) for the carburetor must be level when you go to reassemble the carburetor or follow the instructions you get with the carburetor kit, or you could also ask the parts man that you get your kit from.
When you clean your carburetor and remove the jet screws, you will first need to lightly seat the jet screws.
But before you lightly seat the jet screws count the number of turns it takes to seat the jet screws from their original position.
Be sure to mark the turns down on a piece of paper.
That way when you put the jets back in, you know to lightly seat them first and then turn them back out to their original position before you started.
Note:
The little spring inside of the carburetor goes under the float arm.
That is where your fuel inlet needle/float valve is located...on the arm at the end.
Normally there is a small indention in the carburetor base and a small protrusion on the underneath of the float arm where the spring will be in the right postion for installation.
The spring will set in the indention and you will install the float arm with the needle/float valve and float rod into position over top of the spring,you will push down until it is in position and then you can tighten the screw that holds the float arm assembly in position.
Once you have your carburetor cleaned/rebuilt that should solve your problem.
Bud

Oct 12, 2013 | Garden

1 Answer

Got a genuine buddy scooter 125cc that had water in the gas. scooter wouldn't start, I drained gas and replaced with new gas and added sta-bil fuel stabilizer. Now it will start and run for a short...


Hi Sure ok

Sounds like you have dirt/debris in your caburetor jets,fuel passages or a diaphgram that is becoming non-flexible.
Check/Clean/Replace your Air Filter, a dirty air filter can make your engine run to rich with fuel.
Also be sure to check and clean your spark arrestor in the exaust,if you have one installed on your engine.
Note: ALWAYS USE COMPRESSED AIR TO CLEAN YOUR JETS AND PASSAGES, VERY IMPORTANT.
Note:Before you disassemble the carburetor:
Write down on a piece of paper or take a picture of how the linkage attaches to your carburetor for later reference when you go to reinstall your carburetor.
Mark each piece with a awl, or some kind of instrument that will make an alignment scratch before you disassemble the carburetor into separate pieces.
That way you will know which way it goes back together when you reassemble it.
Sometimes you can get by with priming the carburetor or by using a very small shot of starting fluid and letting it run a few times like that, and it will flush the gunk out of the jets,but most of the time you will need to rebuild the carburetor.
Be sure to check your fuel tank for water and dirt/debris, if there is water/debris then you need to clean your tank.
Check you fuel line condition after a while they will degrade and need replacment.
Check/Clean/Replace your fuel filter if you have one, normally they are located in the fuel tank of chainsaws and weedeaters.
When you remove your fuel lines from the carburetor be sure to make a drawing to how the lines are connected to the carburetor or take a pictue for later reference.
Normally the big line will be the line the fuel filter is connected to inside of the tank.The smaller of the two lines is the return to the fuel tank from the carburetor after it is pumped thru the carburetor by the primer bulb.
Make sure you are using fresh fuel...and oil if your using a two cycle chainsaw or weedeater with the oil to the right mixture...too much oil as it can cause hard starting and excessive smoking.
If the chainsaw/trimmer is over a couple of years old, then I recommend that you buy and install a new carburetor repair kit,because the diaphragm will get hard and that will cause it to be hard to crank.
The diaphgram may look good and flexible, but it can be deceiving and not act as a fuel pump as it should because it has become too hard and will cause hard starting,start and run and shut off, etc.
When you clean your carburetor, I recommend that you use a laquer thinner type cleaner to clean and dissolve the laquer build-up in the float and needle jet passages.
Be sure to remove all plastic and rubber parts before using the laquer thinner because it can dissolve the plastic parts and render them unuseable.
Be sure to use COMPRESSED AIR to blow out all the fuel and air passages.The higher air pressure is needed to blow some of the trash/debris from the fuel or air passages.
Be careful when blowing out the passages, because there are sometimes small rubber type seats in the bottom of some of the passages.
Keep in mind that the float (if you have one) for the carburetor must be level when you go to reassemble the carburetor or follow the instructions you get with the carburetor kit, or you could also ask the parts man that you get your kit from.
When you clean your carburetor and remove the jet screws, you will first need to lightly seat the jet screws.
But before you lightly seat the jet screws count the number of turns it takes to seat the jet screws from their original position.
Be sure to mark the turns down on a piece of paper.
That way when you put the jets back in, you know to lightly seat them first and then turn them back out to their original position before you started.
Note:
The little spring inside of the carburetor goes under the float arm.
That is where your fuel inlet needle/float valve is located...on the arm at the end.
Normally there is a small indention in the carburetor base and a small protrusion on the underneath of the float arm where the spring will be in the right postion for installation.
The spring will set in the indention and you will install the float arm with the needle/float valve and float rod into position over top of the spring,you will push down until it is in position and then you can tighten the screw that holds the float arm assembly in position.
Once you have your carburetor cleaned/rebuilt that should solve your problem.
Please take time to rate me
Bud

Apr 18, 2013 | Motorcycles

1 Answer

The engine starts on my benelli motorella 1965 model and then cuts out


Hi, Anonymous the following applies to carbureted also fuel injected models and the usual suspects are:
1. Severely discharged or a damaged battery, 9 volts or lower.
2. Faulty alternator/generator and or voltage regulator.
3. Check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
4. Faulty main circuit breaker or ignition switch, check for loose connections and continuity.
5. Faulty system and or ignition relay, check for continuity.
6. Faulty ignition coil, ignition/electronic module.
7. Faulty CKP, CPS, CMP, MAP, TPS, O2, or BAS sensor, corroded, loose or broken wire connector pins/sockets.
8. Water or dirt in the fuel system, carburetor or filter.
9. . Restricted, blocked or kinked fuel line.
10. Fuel tank empty.
11. The gas cap is not venting properly or fuel tank venting system blocked.
12. A faulty Fuel Pump, pressure regulator and or fuel injectors.
13. Vacuum line from intake manifold to petcock broken, cracked, or not attached, carburetor vent line plugged.
14. Needle and seat stuck closed in the float bowl.
For more information about your issue, please visit the websites below.com. Good luck and have nice a day.
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Nov 17, 2012 | Benelli Motorcycles

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