Question about 2000 Yamaha DT 125 R
Hi there, my dt 125 will only start if i take out the spark plug and pour a small amount of fuel down inside the barrel. It runs ok after that. when the bike has been left for a few days i have the same problem. I have had the carb in bits lots of times with no results. The bike has been deristricted at the front of the exhaust and the air box snorkel has been removed. I have a great spark there. I have removed the small fuel filter from the carb. I dont know if the power-valve has been messed with.
Ive been scratching my head for weeks. Hope someone can help.
Had exactly the same prob with my dt 125.
In the fuel tank there were two filters that had become a little blocked with small fragments. I replaced both of these, aswell as the petrol tank and now works perfectly.Worth replacing with every service.
Also make sure the amount of fuel to oil is correct because if there is too much oil it leaves a small layer of oil on the spark plug which gets thicker when the engine cools. When you dip the spark plug in petrol and put it back in it obviosly makes a large enough spark to remove the oil, but repeats itself when the bike cools.
Hope this helps
Posted on May 25, 2009
It is ordinary for a two stroke engine to have a hard starting when you left it for few days so try to choked it when you starting it.
Posted on Apr 15, 2009
a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
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Posted on Jan 02, 2017
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