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2003 Yamaha DT 125 R - Page 6 Questions & Answers
My dt wont stat in gear with the clutch engaged?
All the Japanese bikes I have owned won't start in gear unless you pull in the clutch lever. There is a small plunger switch fixed to the clutch lever stock (the part that does not move). This switch is connected to the ignition and starter circuits, so when the clutch lever is closed the starter won't turn. Check the bike starts OK when not in gear. If you try to start the bike in gear and it does not start with the clutch lever pulled then the switch is not working. Hope this helps.
What is the cause of power loss and requirement to fix it
dirt in the carb , strip and clean ! clean tank also !
low compression , 100psi or more on tester and if less then remove cylinder head and check bore for wear or damage , gasket also ! if damage in bore then a rebore and oversize piston kit and new gaskets etc !
Kick start jammed
i do not think so this sounds like a motor seizure you will need to take the spark plug out and see if the piston top is alright if it is try to turn over with the plug out if it want turn over then it has siezed up and will need to be rebuilt
Runs high rpm
must be a faulty tachometer because that bike at 12000 rpm would sound like its about to explode.
Only runs with choke on
Carb no doubt needs a rebuild. Dirt, debris, is not allowing fuel in. Check fuel lines as well. No need to do a part job. Carb ports easily get clogged
Loss of power
Does the bike leak oil, if so fix the leak as 2-stroke engine's fuel supply run through engine casing.
Check exhaust for blockages.
Bike is running lean/rich
Excess smoke from exhaust
I would make sure the oil level is not too high. Next I would remove a spark plug and test compression to see whether your rings are worn excessively.Hope this helps.
Yamaha dt 125 r wont stay running
service it, thats plugs air filter, check ht cap and lead.if you done that then check spark is good, though if the sparks bad its rectifier or cdi problem, double check batteries good as sometimes they earth out when old.if thats ok its fuel checking time, is fuel getting to carbs ok,,do carbs need a serviceby the way carbs=carberreta
Hi,what do i need to convert my dt125 re to kick start
I dont think this is possible. Best you might be able to do is pop the clutch while pushing the bike. A kick start appratus requires not only the part you see and would kick, it has to have internal parts. Your motorcycle is either manufactured for a kick start or it is NOT manufactured for a kick start. If you find out otherwise, please let me know.Thank you
My power valve on my
A have a yamaha dtr 125 it runs but its got no power and the valve moves but isn't kicking what could it be thanks
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