20 Most Recent 2000 Sym Husky 125 Questions & Answers

your problem lies in the safety circuit,one of the switches is closed circuit

ck the wireing could be a starter going bad , relay , loose wireing , alot of things but ck the wiring first clean it up

Hi, i can't exactly tell you which wire to join to which one, but i can provide you with a wiring diagram, so, hopefully, you can make it out yourself :) http://www.scribd.com/doc/9811756/SYM-Jet-Euro-Electrical-Diagram

looks here http://www.progressivesuspension.com/

bent fork tube?

Bypass the missing barrel and HOT-WIRE IT!!

Clutch is slipping cheers Simon

Carbs should be left alone apart for basics in revs. I would up the tick over too, 2000rpm,air filters, add k+n or like,to improve breathing+add some fuel booster,cleaner,is it running too rich or lean?smell the exhaust fumes that will tell you.check breather pipes, filters,are they blocked?Sounds like it is a major carb tune or gear ratios have been altered,highly unlikeley!!Sounds like BREATHING to me!!! Float chambers+valves in the carb is highly possible.What bike is it and how old will give me more ideas. Cheers simon.

First, get a fresh sparkplug. Next, charge the battery. Batteries usually only last two years or less. A battery that will not hold a charge will rob electricity needed for spark. On a bump start, the flywheel generates more electricity than a kick start. Give the throttle only one twist on your morning start if your bike has a power valve. The valve gives a shot of gas when the throttle is turned. Twist too much and the engine will flood. Please rate my answer. Thanks.

Should be a belt from the crank above the blade that goes to the axel, look and see if shes still there.

Hi,

Check your filters and carburator.
maybe it just need to get a small check up to set the carb again.
also: maybe there's a vacuum kindaoff valve in your tank, so that when you start the vacuum opens, but not enough fuel gets through bc of the fact that your engine has to create a vacuum before it opens...
i've had thios with a 2 stroke rieju... it's just a safety meaurement, and if so, have it replaced.


Hope this is helpful, and greetings,

Olivier.

fuel line is leaking somewhere, can you here a hissingnoise when you turn on ignition

under the seat

Usually either:
1) Pour redex into spark plug hole. Kick start bike with ignition off and leave for a few mins. Then start up and watch the thick black smokey mess come billowing out of the exhaust and run for it as the nieghbours, parents and everyone and his dog complains about the pollution...
2) More likely, sadly, to need a rebore and new piston....

Normally 25thou or 0.9mm

It depends how badly they are worn. Check the sizes with a micrometer before deciding.

sounds like dirt in the carb. If left for a while the petrol will go off and clog up the jets in the carb. I suggest replacing the fuel and cleaning out the carb.

If it is a SYM scooter, it could be anywhere. Under the front cover, under the floorboard, or under the seat pan. It is usually a small box, about the size of a deck of cards, and it will usually have heat sinks/fins molded into it. Call your local SYM dealer with the exact model you have and they should be able to tell you exactly where it is located. We sell KYMCO and our manuals tell us where to find all the parts on the bike. SYM's should as well. www.solanocycle.com

The rectifier convers AC current to DC current by blocking the wrong polarity of charge from the altenator allowing the correct polarity charge to enter the battery and run the electrical stuff on your bike. If the rectifier or Diode Pack fails, you will not be able to charge your battery and if it is short circuit will flatten the battery very quickly. There should be some form of regulator after the rectifier that stops the battery from being over charged.
Hope this explains it for you.

Slacken off the rear brake adjuster. Doing that will stop the brake from rubbing.
Hope that helps.