20 Most Recent 2002 Yamaha DT 125 R Questions & Answers

Take radiator cap of start bike fill with water and coolent when bubbles stop eg when thermostat opens put cap back on done done start bike then take cap of any u no that like every 1 does hope it helps

Check the side stand safety switch its may be stuck or faulty.

Hi there, you likely still have the restrictor in the exhaust header. Mine was the same, they are shipped like that as standard. Take the exhaust off the engine and remove the the concentric tube that's in there (you need to cut it out). Instant +100% power, if that is your problem.

Usually this is caused by the air/fuel mixture not being optimal. Try adjusting the carburetor.

Please see the following link for an example.

http://www.youtube.com/watch?v=aUNU0G-Ofj4

If that does not work, check the spark plugs, they may be fouled.

Hope this helps!

Dealer only

Clean out your cooling system, flush it and make sure the radiator is not clogged. You could be overheating due to a clogged up radiator. If you put your hand on the radiator, it should be the same temperature all around. If clogged up it will be colder in the middle and very hot where the water comes in from the engine. CAUTION not to burn yourself, use of IR thermometer recommended.
If that's not it, then check your head gaskets.

yer change ya gear box oil and get all the old fuel out. just basicly anything you can clean or change do it!!! air filter,oil filter,water,spark plug and so on...and when you first start it let it warm up for bout 5 mins but no longer.

well at first in wont fit because the cooling (LC) system will not fit the 02, but with a little welding and some alum works, you will be able to fit it.

the only difference will be the placing of the mount, weld holes and drill holes on the frame, but before you do so, remove all electric components from the frame.

hope this helps.