20 Most Recent 2004 Skyteam ST 125 Y Questions & Answers

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I had a reply with manual attached within half an hour

Bigkendo

try ebikes in bristol UK, they are A++
let me know how you get on

tom

I am assuming that the cable is adjusted properly. It should have +-5mm of freeplay at the lever when pulled. If the unit has been sitting this is not uncommon due to the plates sticking together from rust from condensation moisture inside the engine. especially in a humid enviornment. You can try riding the bike in first gear with the clutch pulled in snap the throttle open and closed quickly and repeatedly to attempt to break the plates free. Be care full and attempt in an open area where there is plenty of room. It can be a wild ride. If this does not work the clutch will need to be dissassembled, cleaned and reassembled as necessary. Also will need an oil change.

70 mph.

Did you try ebay.com?

once you change the clutch there are two adjusters , one up at the lever and one just before the bottom connector which pulls the clutch

Behind the right side number plate.

I know you have cleaned the carb but ya gotta keep at it. The jets are not the problem. The problem is the little pilot circuits for low and early mid range fuel supply. Varnish or trash in the carb can be very hard to get rid of.

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 carb and then 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 idle screw and the air screw on the outside throat of the carb and spray into the screw holes as well. Be liberal with the spray. Also use compressed air to blow out the passage ways.
< < 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. Before putting the slide back into the carb, move the clip on the jet needle down one notch. Put the rest of the carb back together and install the carb. Let the float bowl fill then start the engine. This process should get you back on the road.

Please rate this solution. Thanks!

I had the same problem with the same bike... if the bike is not very old then it should be the mixture gage which is a gold screw looking thing, on the right hand side of the bike, so it mite jus need adjusting and then need the throttle cable adjusting after as it changes the rev count aswell, jus keep adjusting it and then trying it again, if its reasonably old then it is most probably the carb. Hope this helped u out...

Privce on 2004 Skyteam Betwen $ 1,500 to $ 4,500 depend on the condition of the Bike itself.

You should be able to get one from chinesebikespares on the net. if you do search you should find them. I use them to get parts for my Skyjet 125. Very speedy service.cheers

You have to find a hotter plug or try and lower the voltage of your bike, which is next to impossible. But it can be done. the old cars had a voltage reducer on the coils, and when the car wouldn't start, you just jumped the wire on the reducer and off you went with a ton of power, unfortunately, the coil couldn't take the heat and would die in about 20 mins anyway. But the plugs, I had to switch to autolite on my bike , they work 10 times better than champions, NGK are about the best, and they have a good heat range.Check them out.

drain your carb, clean your tank, check for kinked fuel line.

there is a float in the carb, that pushes up a needle valve to shut the fuel off, There must be something, a little dirt or hair stopping the valve fully closing. The bottom of the carb must be removed and the valve cleaned, It is possible to buy a new needle valve if the problem persists.
You may be able to loosen carb clamps and twist it sideways to get the bottom off, otherwise the carb will need to come off, you should be able to leave the cable and slide installed.

It sounds like the CDI box.

Do you mean the wiring harness?
If yes, it's a medium in complexity.
But a dedicated person could try.

may be the oil/gas mix try using high octane gas ,or replace the plugs, some times they get fouled easy on a 4 stroke

Throttle cables are relatively standardixed. Remove the broken cable and take it to any auto parts store where they will be able to match it to one they have in stock, or can order for you.

if you are from UK, try ebikes in bristol they are excellent!! quick delivery and the guys know a thing or two about these bikes, let me know how you get on!

tom

if it is a liquid clutch, drain all the fluid out, use a low pressure air line to blow any contaminates out of the pipes. then replace the fluid with new fluid and bleed the system till all the air is out. if it is a cable clutch, check the inner cable for fraying,if it is not frayed then lubricate it with a light oil.