20 Most Recent 2002 Kymco Stryker 125 Questions & Answers

Park Motor cycles Eastbourne, East sussex

google your kymco model and cc SERVICE MANUAL.i found mine in pdf.it was chinese and english on the same page.

TRY SOME STARTING FLUID IF IT RUNS YOU NEED A CARB CLEANING

Sounds like, and this is general, you may have engine damage.
Get it checked out, or do a compression test if you are able.

How do you temporarily resolve the problem Pete?
Do you re-charge the battery or ???
Does it still crank the engine over with the electric start while in the 'failed' state after the 30 min run, just not fire the engine?
Are you doing the spark test with the electric start or kick start?

If charging the battery makes it run OK again for the the 30 mins, that is indicator the charging system is bad and you are running in 'total loss' mode of the battery. When it becomes discharged there is insufficient power to run the bike. You may still have enough power to pass a spark test if tested briefly.

If you can measure the voltage across the battery when the bike is running, that would identify whether the charging system is good - you should get at least 13.5V at the battery.
If not, you may have a stator and/or regulator/rectifier failure.

Hi Dave,
I take it the Kymco 125 Stryker has the overhead cam engine either a Honda 125 or very similar?
O.k. if you look at the top of the engine just below the fuel tank you should be able to see a heavy wire going to a cap shaped a little like a Tobacco Smokers pipe it may steel shrouded or plastic? this could be obstructing the view of the Spark plug as it is in fact the plug cap that isolates the plug from water etc, if you carefully pull this upward in the direction of the fuel tank it should release showing the item you seek.
Hope this sorted it,
Paul 'W'
Onyer~EDson(:0)~[><U.K.

ok there is two solutions to this prob to consider first try the clutch cable adjustment. If that does nothing try The clutch springs inside the case. If there are wear marks on the clutch basket then you need to completely replace the clutch all together. let me know how you make out

You probably need a new clutch. That can explain why it bogs. The smoke I don't know.

did you replace the whole indictator assemblies or the bulbs and are they l.e.d indicators you have on it now and was it using l.e.d ones originally

Try changing the spark plug first and clean the air filter.

Bad ground. Find the fault and fix it.

Hi Bryan, it does sound like the battery, if it is a 12 Volt system, just connect a set of jumper leads from a 12 Volt battery, another bike car etc. and see if it makes a difference, i think you will find everything works fine with a new battery.

weak spark can indicate bad coil,,,correded wires,,,or grounding of the ignition circut,,in which case you would have No spark,,,simple things first,,,check your wired to the plugs,,some have removable plug caps,,and many times,,corression interferes with strong spark,,,coil testing must be done at a service provider,,,wires can be grounded,,expically if you have dumped the bike and the handle bars have be dissloged somewhat,,,check the kill switch for damage inside..

dat kan je cdi zijn of condesator als je contact punten hebt ik weet niet of er een typ key er op zit m.v.g jasper

if 2 stroke then = all the way in and out 3/4 turn
if 4 stroke then = all the way in and out 2 turns

is the batt at 12v--are connections tite n no corrosion-the same goes for the wiring--is gas circulating to the motor--may need a repair book

Your bike may need new piston rings because of the over revs on the motor.Hope this helps

Replace the magneto/stator, CDI and voltage regulator/rectifier. Usually if one messes up they all go bad.

solenoid needs a diode across it with stripe on positive side.

can be a vacume air lock try open fuel cap to start cold to see if starts?

or sounds to me that the orfice is to small on the cold start port or dirty ...not enough fuel due to your hand choking

other is a air leak between carb to intake valve/port

when engine running spray some WD-40 around intake gaskets to see if rpm picks up if do its leaking

If there is a number on the lock itself, you might be able to get a key punched out.
A couple other things to do, take a 1/4 inch drill bit and drill out the lock, turn with screwdriver, should start right up, second, carefully take apart the bike, getting to the keyguard and remove the lock, then take the lock apart, get it re-keyed..