Gas Gas Txt 270 Contact Wont Start

[stagjim]

Purchased a 1998 Gas gas txt 270 contact to follow my son on his beta. Im living in France and bought the bike off ebay, had it delivered, started first kick off the van. Went to use on the weekend, ran perfectly for 20 minutes then just cut out and will not start. Checked for spark , no spark. Checked kill switch, all connections and earths. Replaced, plug, ht cap, kill switch and ht coil. Still no spark, has anyone any good ideas, before i waste more money on a refurbed stator plate.

I have now previous historty with the bike, it would appear to have had a fairly hard life , but was running fine for 20 minutes.

[zerorev3rev4]

can only suggest getting stator and cdi checked

[tankygsy]

Get a wiring diagram and begin the process of elimination with a multimeter.

Check the input / output voltage of components leading up to the spark plug I.E. ht lead, coil, rectifier / regulator, cdi, stator. Start from the plug and work your way back.

At some point you may find one of them hasn't got an output voltage despite having an input voltage. If none of them have an input voltage then the problem isn't with the ignition components.

Next try Checking for resistance on regulator / rectifier, pickup coil and stator coils, an open circuit on these is a good indication of a faulty part.

In my experiance stators normalky fail over time with the spark getting weaker and weaker. Unless water has got into the stator windings or some other catostrophic failiure they shouldn't just stop working.

Edited July 25, 2012 by tankygsy