20 Most Recent 2002 KTM LC4 625 Sc - Page 7 Questions & Answers

have u tried a new plug ? is power gettin to coil , put plug in cap and hold against a good earth point on head and crank over and see if plug sparks , if you dont see a spark try holding the plug and crank engine and if you dont feel voltage in your hand then remove cap off ht lead and repeat and if no voltage then check kill switch , if ok then check coil wires etc !

sounds like you bent a selecter fork in gearbox ! need to strip engine and check all parts inc cogs and bearings !

Sounds like idle jets are still clogged, they are really small and unless you check them, a standard cleaning of the carbs may not clear them. I use a nylon bristle pulled from a scrub brush to **** out the pilot jets.

i think you got gearbox problems

Starter relay

increase the fuel intake it should be a little screw

well which problem is it... wiring or acceleration ???

is the gear leaver returning to position after trying to select a gear.it could be that the shaft from the leaver is bent or the drum is stuck or return spring is broken.

You could have worn down all the friction material on the clutch and what you are hearing is the rivets on the clutch rubbing on the flywheel in the absence of sufficient friction material.

Tube inside of tank has a hole in it.

sticking float or main jet

most likely it is a head gasket but could be a cracked head it will have to be torn down to see have head or heads magfluxed and cheacked prior to putting back togeather

Make sure its not over full. Just trying to help!

Sounds like your clutch is out of adjustment, or needs to be bled. Most of the ktm's use a Magura hydraulic clutch which can be bled using Mineral Oil. DO NOT USE BRAKE FLUID.

CLEAN CARB AND REPLACE FUEL FILTERS CHOKE ENGINE TAKE OFF AIR FILTER REMOVE SPARK PLUG AND RUN IT IDLE 5 MIN PLACE ALL COMPONITES ON IT AND DRIVE

I bet you got water in your gas through the carb or in the spark plug check the oil for what looks like a raindow .

Do you have the owners manual with you? If yes, then you can check your manual and look for the page where you can check the location of the oil.- IRC Motorcycle Tires combined with good quality components

The F1 light is an engine management error, take it to your nearest dealer and get them to run their diagnosis machine on it. You may have a mixture problem or an ignition timing problem.

Since it was just worked on ... take it back and find out what the problem is. Could be a disconnected or faulty sensor. In any event, since you took it to be repaired, and paid for it, get it repaired. Don't run the bike until this is resolved. Low pressure is DEADLY to a engine.

If you are racing, or riding really hard you may need to check the clutch each season. You can take the friction plates out and measure the thickness, and check this against KTMs recommended limits. If the raised squares on the friction plates are worn off they surely need replacing. Normal trail riding with some moderately hard riding should see the clutch last for many years without needing new plates. The plates might still be OK in 2031! Change the oil as often as recommended in the manual, or as often as you can afford! (General advice only).