Question about 2000 KTM 640 LC4
Hi, even though you had brushes put in the starter, did they take a look at the starter teeth for broken or missing one's? Well, anyway, I am sure they looked it over. The only other thing it could be is the flywheel/freewheel. When you say that the starter disengages with a ratcheting sound, makes me think that the starter is intermitent, and you need to have it bench tested like they do on auto's. They take a 2x4 piece of wood and that starter should dig right into a piece of 2x4 with no problem. It may just have weak windings. It shouldn't take you long to remove the starter. Take it somewhere else this time, and tell them what was done to it, but you still want it bench tested under a load. This is very important. Keep me posted on this. This is the step I would take. Then you will know for sure its not the starter. I believe it is.
Posted on Nov 20, 2010
Hello. I suspect that the actual cause of your troubles is old fuel. Read on. Whilst your bike was not operating for 3 months there has been no activity for the fuel... so, the fuel grows something like a moss or fungi in the tank... this is in the form of clogs, which is usually white for unleaded fuels.
So to make the engine to turnover again to start. All you need to do is, empty the fuel from the tank (Professionally or DIY) and fill it back up again with NEW FUEL.
Also get a can of starter fluid. IF the bike won't start with the new fuel, spray some starter fluid into the air intake and then crank it over. Keep it running with starter fluid if necessary for up to 5 minutes.
So when you leave your bike for an extended period of time (over 5 days) turn on the engine every 2nd day to clear out any white clogs, for only about 2 minutes.
And turn OFF the fuel switcher to prevent any fuel flow to the engine, which creates the white clogs.
Posted on Nov 14, 2010
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Posted on Jan 02, 2017
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