20 Most Recent 2004 Skyteam ST 125 SM Questions & Answers

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...

should be ignition key

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

u screw nuts under seat then slide backwards

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

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

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

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.

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

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.

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tires control lights oil, chassis, stands,,,

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!,,

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. ,,,

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.

bad fuel bad spark plug clogged air and fuel filters old fuel clogs up , filter and carb the bike looks like old 1980 honda clones. made in china now under license. has carb still

http://www.crservice.dk/PGO%20mc/Service%20manual/Service%20Manual%20T-Rex%20125_150-v1.pdf

stator, or cdi box.

Did you jump it directly from a car or did you use a booster designed for a car or truck? Some car and truck boosters can be too powerful for a bike electrical system as cars need a much higher Amp rating to turn over a bigger, heavier engine. Take it to an Auto-Electrician or bike specialist to check the other parts in the electrical system. You might have damaged either the battery or another part when you 'jumped' the bike.

Follow the path of the HT Lead and it will take you to the mag