Question about Keeway Motorcycles

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I own a Keeway TX 125. I want modifications to improve power . I found few sugestions regarding exhaust ,air intake and carburetor adjustments (new jet kit),sprockets. I need more info please. Thanks

Posted by Martin Zrak on

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  • Martin Zrak
    Martin Zrak Mar 23, 2016

    Nope . Basically I need to know what to choose and how it will work with the other modifications .

  • Sean Calvert
    Sean Calvert Oct 20, 2016

    Hi do you have any luck nodding your keeway?

  • Aaron Aug 27, 2018

    I need to know what big bore kit to put on it I want at least 150 kit but can I get them for it I put 2 different sprockets on a little better anyone no ?



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You could also change to higher octane fuel if available (96) along with your other modifications

Posted on Mar 23, 2016


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SOURCE: keeway superlight 125 adjusments

Pull the slide out of the carb then move the clip on the jet needle down one or two notches. This will richen the low range fuel mix. You can also get a rear sprocket with about 4 more teeth. This will get you off the line and out of the corners faster BUT it will also lower your top speed.

Please rate this solution. Thanks supergunner!

Posted on Apr 17, 2009


tim winter

  • 200 Answers

SOURCE: 2 broken side panels for keeway superlight 125

This is something you should contact a Keeway dealer for....good luck...Tim

Posted on May 10, 2009


  • 1 Answer

SOURCE: how to improve engine by modification?

there is a simple trick to improve your bike performance.. here it is. put 3-4 holes in your bike silencer.. thats it. it can improve your bike pickup.. acceleration. sound.. speed.. etc etc.

Posted on Jun 14, 2009


  • 4 Answers

SOURCE: i need service manual for machine for my keeway

Here it is:

Look for manuals.

Posted on Aug 02, 2009


  • 4 Answers

SOURCE: manual for a keeway speed 125

Look for manuals here:

Posted on Aug 02, 2009

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2007 Keeway Superlight 125 choke position

Hi, John for this scenario you will need your service manual that has all fastener torque specs and a wiring diagram on the back pages, parts fiche, and owners manual if you can't find the best tool you ever bought for your Keeway, despair not, for a mere $15 you can download another one.
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Hi, Sean for this situation I would call my local dealer or reputable shop's service/parts department and inquire about any possible quick fix, answers, or parts inquiry. For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
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I have a keeway superlight 125 and it started fine the other day but as so as I put it in gear it shut off When I got it started I went 8miles then it started dying and then cut off and wouldnt start

Hi, Craig this is a generic troubleshooting guide the following applies to carbureted also fuel injected models and the usual suspects are:
1. Severely discharged or a damaged battery, should have 12.5 volts or better and be able to pass a load test if necessary.
2. Failed alternator/generator and or voltage regulator.
3. Loose or corroded battery terminals and or cables especially the "NEGATIVE" cable, look for loose, corroded, or broken connectors inside the cable harness at "BOTH" ends.
4. Failed main circuit breaker or ignition switch, check for loose connections and continuity.
5. Failed system and or ignition relay, check for continuity.
6. Failed ignition coil, ignition/electronic module.
7. Failed CKP, CPS, CMP, MAP, TPS, or BAS sensor, corroded, loose or broken wire connector pins/sockets.
8. Throttle cables and or idle speed improperly adjusted hot idle speed should be 950 RPM to 1000 RPM.
9. Air/fuel mixture screw improperly adjusted.
10. Water or dirt in the fuel system, carburetor or filter.
11. Restricted, blocked or kinked fuel line.
12. Fuel tank empty.
13. The gas cap is not venting properly or fuel tank venting system blocked.
14. A failed fuel pump, pressure regulator and or fuel injectors.
15. Vacuum line from intake manifold to petcock broken, cracked, or not attached, carburetor vent line plugged.
16. Needle and seat stuck closed in the float bowl.
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2008 Keeway Arn 125 high idle

Hi, W32twood and the usual suspects are:
1. Throttle cables improperly adjusted, pinched or need lubrication.
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4. Air fuel mixture adjusted too lean start with 2 full turns.
5. Intake system air leak.
6. Fast idle choke ramp is not releasing.
7. Faulty automatic choke.
8. Broken throttle return spring.
9. Damaged diaphragm or slide.
10. Faulty MAP, TPS, ATS, O2, sensors or wiring/connector.
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2 Answers

How to improve the performance of a ga 13 engine of a nissan sentra?

Let me tell you that I'm also working on that. :-)..
A nissan ga13ds, since it is carbureted, then it is limited on the amount of modifications that are of good value for money, since some of the top end modifications may cost you the price of a brand new nissan sentra + modifications.
Here are some things I did and are planning: -Replace the stock fuel filter assembly to a high performance one. (ex. to a High flow air filter, cold air intake, short ram intake, etc.) -switch to an electrical fuel pump. -upgrade exhaust system. (performance headers, high flow catalytic converter, larger exhaust pipes, racing mufflers. -upgrade to a better radiator (aluminum) + stronger and better fans. (a cooler engine runs a bit faster) -Install an oil cooler again for the same reason of better cooling. -(just my idea) Buy a performance carburetor. (this may be too costly because you might have have an intake manifold custom built) -Replace engine internals to race internals for better performance under High RPM. -Find or custom build racing camshafts to replace your stock. (this will result to better performance at high RPM levels but will not be efficient running the car in a lower RPM range).
You can also improve the performance of the car itself by doing the following: -Saving weight: -Aluminum wheels -carbon fiber/fiberglass/aluminum hood and trunk. -and any other stuff not necessary to you can be removed to save more weight.

I hope these ideas help.

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I need to know how to adjust the fuel ratio on my 2008 Keeway arn 150 that has an electronic adjustment on it.

check for a small brass screw on the carb. if it is on the filter side it is a air adjust screw, turn it out to lean out the carb. if it is on the intake side, it is a fuel adjust screw, screw it out to make it richer. the easiest way to adjust is to turn it slowly one way or another until you get the highest idle without touching the throttle, then adjust back down with the idle adjust screw.

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1 Answer

How much more hp would i get with headers and new system

Headers and a freer flowing exhasut just by itself won't gain you alot of power,maybe 20 horsepower.What is needed is a freer flowing intake and fuel supply along with a better ignition curve to fully take advantage of the freer flowing exhaust.If running fuel injection,you would need a performance chip for the ECU/PCM,to really take advantage of the exhaust system.If running a carburetor,the jets would beed to be increased in size slightly,and a performance curve programmed into the distributor.Think of an engine as a huge iron lung,air in,air out.When you make modifications or improvements to increase the amount of air flow overall,air IN is as important as air OUT.They both need to be adressed is what i'm saying,to take full advantage of any mods.Providing the intake,fuel and ignition are addressed along with the headers and exhaust,expect a good 50 horsepower gain overall (V 8) if not more.Higher gains will require a more radical camshaft,and some driveability will be sacrificed there.

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