20 Most Recent 2004 Skyteam ST 125 SM Questions & Answers


Hi, Paul_wrig858 and the usual suspects are:
1. Fuel tank empty.
2. The fuel tank has old dead gas.
3. Fuel tank bottom contaminated with ethanol sludge, dirt, water, rust, etc.
4. Fuel supply valve/petcock turned off.
5. Fouled spark plugs.
6. Engine flooded as a result of overuse of the choke.
7. Vacuum hose to the fuel supply valve/petcock disconnected, broken, cracked, or pinched.
8. Fuel valve/petcock or filter clogged.
9. Fuel line to carburetor or throttle body pinched, kinked or blocked.
10. Carburetor float stuck.
11. Fuel injectors clogged.
12. Fuel injectors stuck open.
13. Quick disconnect check ball stuck.
14. Compression below 75 PSI.
15. A stuck-bent-burnt valve.
16. Improper valve clearance (too tight)
17. Severely discharged or a damaged battery should have 12.5 volts or more and be able to pass a proper "LOAD" test if necessary, you may have a cursory reading of 12.5 volts or more but little or zero amperage the battery is faulty and must be replaced, AGM batteries fail in this scenario more so than lead-acid batteries.
18. 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.
19. Loose or corroded wire connection at the coil or plug between ignition sensor and ECM module.
20. Spark plug cables in bad condition and shorting check for spark leakage in the dark, cable connections are loose or connected to the wrong cylinders.
21. Ignition timing incorrect due to a faulty ignition coil, ignition module or MAP, CMP, CKP, O2, TPS, ETP, IAC sensors.
22. Faulty neutral, clutch, kickstand safety switch.
23. Faulty fuel pump or fuse or relay.
24. Faulty or corroded run/stop switch.
25. Tilt sensor needs a reset.
26. Security system not disarming alarm needs a reset.
27. Check for engine trouble codes.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
http://www.scooterfocus.com/scooter_troubleshooting.html
https://www.motorcyclecruiser.com/g00/what-to-do-if-your-motorcycle-doesnt-start/?i10c.ua=1&i10c.encReferrer=&i10c.dv=11
https://www.google.com/search?q=2004+skyteam+st+50+server+manual&sxsrf=ACYBGNTlfZtRHUAs6WQZx3QcjD0Fb4GDag:1579058001879&source=lnms&tbm=isch&sa=X&ved=2ahUKEwj2laC60YTnAhXFqFkKHaOXCa8Q_AUoAnoECAwQBA&biw=1440&bih=757
https://motopieces.net/en/103-skymax-st125-6
https://www.manualslib.com/manual/823805/Skyteam-St50.html

2004 Skyteam ST... | Answered on Jan 15, 2020


Hi, Reece moisture, condensation, rain, or bike washing can make the bike run sluggish, not able to rev, and misfire. Older bikes, engine configuration, and exposed electrical components are at the front of the line for acting up. During the diagnostic procedure spray Electrical Contact Cleaner on corroded wire connectors/pins/sockets etc. and apply a liberal amount of "DIELECTRIC" grease to the mating harness/wire connectors. WD40 works great for eliminating suspect areas in your quest to find the real offending gremlin.
For additional insurance you can spray a High Temp Clear Coat on the most vulnerable areas it will work like Scotch Guard does on fabric. Fabricate a rubber or plastic splash guard to deflect water coming off the front wheel getting to the front cylinder spark plugs. The design should be adequate for its purpose with the least amount of airflow restriction to cool the cylinders. The usual suspects are:
1. Air filter soaked with water.
2. Water in the fuel system gas tank and carburetors.
3. Wet ignition coil packs.
4. Spark plug boots wore out or loose allowing water to enter.
5. Spark plug cables old and cracked check for spark leakage in the dark.
6. Spark plug wells filled up and drain holes clogged.
7. Water in a wire harness that has exposed open ends and have a sharp bend or crimp allowing the liquid to form its own pool of potential threats to chaffed wiring.
8. Sensitive fuel tuners and downloaded ECM remaps may get confused with the abnormal cylinder temperature difference in a V-4 engine configuration.
9. Fuel injected bikes need to have the electrical connectors removed and sprayed with contact cleaner then blown dry and checked for continuity with a test light or multimeter, then treated with Dielectric Grease.
If your bike will not run right or even start after going through the checklist, despair not, letting it sit for a couple of days in a warm environment is like an eviction notice for the Gremlins and then your bike will be back to its old self. You can speed up this process by using forced air to dry out electrical connections.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.bikechatforums.com/viewtopic.php?t=174005
https://www.youtube.com/watch?v=LrBINTrJk_c
https://haynes.com/en-us/sky-team/st125-sm/2003-2015 $20
https://motopieces.net/en/103-skymax-st125-6
http://www.ssrmotorsports.com/store/ownersmanual/streetmini/ST125-6.pdf

2004 Skyteam ST... | Answered on Jan 15, 2020


Hi, Anonymous 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 not find the best tool you ever bought for your Skyteam, despair not, for a mere $20 you can download another one.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.google.com/search?sxsrf=ACYBGNSX7rpOVy9hS3aEKTkN_xf1dbhpFQ:1579045318687&q=Wiring+diagram+2004+Skyteam+ST+125+SM&tbm=isch&source=univ&sa=X&ved=2ahUKEwjtsreaooTnAhXGxlkKHVInAB8QsAR6BAgJEAE&biw=1440&bih=757
https://www.bikechatforums.com/viewtopic.php?p=3424996
https://haynes.com/en-us/sky-team/st125-sm/2003-2015 $20
https://motopieces.net/en/103-skymax-st125-6
http://mybikemanuals.com/

2004 Skyteam ST... | Answered on Jan 14, 2020


Hi, Anonymous the vast majority of service, parts fiche, and owners manuals on the internet are "FREE" to download and all service manuals contain wiring diagrams in the back pages. The rest usually charge a modest fee of $20 and there is a handful of obscure, rare, obsolete, and very old models that are no longer or never were available and some were never printed in English. The Indian and Philippine markets are usually in E-book format only, for these rare occasions I shall look on eBay and find the cheapest one available. Most of the manuals will cover your exact make, model, and year otherwise one will be provided that comes as close as possible to your bike and will have most of the same info that an exact manual would have. If there is no $ sign after the manual link it is free to download.
To download your manual for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.google.com/search?sxsrf=ACYBGNRGUjWWTdQ-Rpk4N55591ULfBcU2A:1579039550926&q=Wiring+diagram+2004+Skyteam+ST+125+SM&tbm=isch&source=univ&sa=X&ved=2ahUKEwjpppPcjITnAhUpq1kKHYSHDLQQsAR6BAgKEAE&biw=1440&bih=757
https://www.bikechatforums.com/viewtopic.php?p=3424996
https://haynes.com/en-us/sky-team/st125-sm/2003-2015 $20
https://motopieces.net/en/103-skymax-st125-6
http://mybikemanuals.com/

2004 Skyteam ST... | Answered on Jan 14, 2020


Hi, Tony and the usual suspects are:
1. Fouled spark plugs.
2. Severely discharged or a damaged battery should have 12.5 volts or more and be able to pass a proper "LOAD" test if necessary, you may have a preliminary reading of 12.5 volts or more but little or zero amperage the battery is faulty and must be replaced, AGM batteries fail in this scenario more so than lead-acid batteries.
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. Loose connection at ignition coil or plug between ignition sensor and module.
5. Spark plug cables in bad condition, shorting/leaking, spark plug cable connections loose check for spark leakage in the dark.
6. A faulty ignition coil or electronic control module.
7. Faulty pulse coil.
8. Faulty CKP, CMP, or BAS sensor.
9. Faulty ignition switch.
10. Faulty run/off switch
11. Tilt sensor needs a reset.
12. Security alarm failing to disarm needs reset
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.youtube.com/watch?v=Q3juDBTurvw
https://www.dotheton.com/index.php?threads/no-spark-skyteam-ace-50.69342/
https://haynes.com/en-us/sky-team/st125-sm/2003-2015 $20
http://www.genuinemotorcycleparts.com/parts/Skyteam/ST125-SM/
http://www.ssrmotorsports.com/store/ownersmanual/streetmini/ST125-6.pdf

2004 Skyteam ST... | Answered on Jan 14, 2020


It sounds like a carb problem. Remove it, desassemble it, clean it, make sure the brass jet are well fixed and that everything is in place...
Nothing to do with the timing chain usually...

2004 Skyteam ST... | Answered on Jun 07, 2015


not illegal if you run daytime only as far as im aware, would start with checking the plug from the switch gear, then check the wiring, and the switch itself, use a meter to locate faults, if this is anything like my chinese bike, ya best of rewiring the lights to stay on permanent

2004 Skyteam ST... | Answered on Oct 06, 2012


u screw nuts under seat then slide backwards

2004 Skyteam ST... | Answered on Aug 27, 2011


If this is a new bike take it back to the dealer and have them properly set it up.
Options:
Sometimes a clogged air filter will cause the fuel/air mixture to become to rich and the bike will stall. Remove the filter and air blast it clean then wash wash in solvent/gasoline then let dry. Apply a very light oil to the filter to keep dirt out, then re-assemble.
Sometimes filters are in-expensive so just replace with new.
You also have a slide stop screw on the carburetor. This can be turned in about 1/8th of a turn to increase the idle speed.
Also: The throttle cable has adjustable ends both at the twist hand throttle and at the bottom where it goes into the carburetor. Vibrations may have loosened the adjustment and you may be able to re-secure the cable adjusters in the correct position for proper idle speed.
Best wishes,
TF

2004 Skyteam ST... | Answered on Jun 02, 2011


Check the bulbs on the bike I bet you one of them is burned out.If not try a new flasher unit. Good Luck

2004 Skyteam ST... | Answered on Oct 24, 2010


Hi Anna
Just sent ya an email.
Hope to hear from you.

2004 Skyteam ST... | Answered on Oct 27, 2009


You must have wrongly fitted it back,check throttle cable and see if the carb air intake is closing properly when throttle is released.This should solve your problem.

2004 Skyteam ST... | Answered on Sep 26, 2009


remove the fork from the bike,remove the dust cover over the oil seal,this will expose the fork seal that is leaking,remove the seal(probably have to stab throgh it with a screwdriver to get it out)measure the seal outside diameter and the diameter of the fork leg,take the seal and your measurements to any motorcycle shop and they should be able to match up a new seal...replace the seals in both fork tubes,as if one is leaking the other one will fail soon

2004 Skyteam ST... | Answered on Jul 04, 2009


Remove the water trap bowl at the bottom of the petcock, (gas valve). Any water or trash in the bowl? Drain a cup of gas from the tank. Any water or trash in the cup? Dump it, clean it and re-mount it, ( not all bikes have a water trap bowl ). Remove the carburetor from the engine.

Remove the float bowl and clean the entire carb with a spray carb cleaner from the auto parts store. Wear protective goggles to avoid getting spray in your eyes. Spray into all the little airways and fittings in the carb. Remove the two screws on the outside throat of the carb and spray into the screw holes as well.
< < READ CLOSELY > >
Be sure to put these two screws back in the same hole they came out of. IMPORTANT > do not tighten these two screws down. Only screw these in until they LIGHTLY seat. Now turn each screw one and one half turns outward. Put the rest of the carb back together, clean the air filter and install the carb. Be sure the bolts are tight. Let the float bowl fill then start the engine. Set the idle speed with the idle screw. This process should get you back on the road.


Please rate this solution. Thanks!

2004 Skyteam ST... | Answered on Apr 07, 2009


tires control lights oil, chassis, stands,,,

2004 Skyteam ST... | Answered on Nov 10, 2008


Cold air is denser and you'll get more air in the bike and the engine compensates with more fuel. It's cold as hell at 20F outside but damn does the bike run crisp!,,

2004 Skyteam ST... | Answered on Nov 10, 2008


depends on what material is stained.. Aluminium stains can be very tricky to get clean if not impossible...some cleaners will also cause a orange/reddish stain wich will not come out unless you use some harsh chemicals to get them out. problem is it's hard to get to those chemicals. IF you happen to have a truck wash nearby where they wash the big trucks (18 wheelers)take your parts there and tell them to use some brightener on it it's a chemical that really cleans aluminium.it may cost you a little bit of money but that stuff really works and i haven't been able to find that stuff for private sale anywhere. the number 2 reasons for stains on the bike are : 1) waiting to long to wash the bike some types of sand/mud especially the red dirt we have down south here will stain a bike if you leave it on the bike not only that it dries as hard as concrete and is very difficult to remove , so was your bike ASAP. 2) washing chemicals. Some chemicals / soaps when they are left too long on aluminium will leave stains as it reacts with the aluminium , these stains are almost impossible to get out. ,,,

2004 Skyteam ST... | Answered on Nov 10, 2008


Hi, Aan_shipley4 derestrict is a negative term rider's use to express their wish to improve performance on their bike or scooter. Depending on the country and motor vehicle laws some bikes and scooters are designed to conform with said laws and their performance is slightly lower than other countries. All vehicles in the world are designed to perform at 75-80% of their maximum potential, this ensures the longevity of the engine. Derestricting or improving performance is always possible on any vehicle but the tradeoff of engine longevity numbers go down, how much depends on the number and type of performance upgrades. Your local dealership or reputable independent shop are best equipped to provide you with technical data and willingness to comply with your needs.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.youtube.com/watch?v=vIOzHJaMj3M
https://www.youtube.com/watch?v=r8CoWB9JCno
https://haynes.com/en-us/sky-team/st125-sm/2003-2015 $20
https://motopieces.net/en/103-skymax-st125-6
http://www.ssrmotorsports.com/store/ownersmanual/streetmini/ST125-6.pdf

Skyteam ST 125... | Answered on Jan 15, 2020


Try switching your spark plug, I had a problem with my skyjet cutting when I was driving esp when I slowed, couldn't see the problem, but I changed my spark plug and it runs real well.

Skyteam ST 125... | Answered on Oct 08, 2010

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