yzf-r125 Posted January 25, 2009 Share Posted January 25, 2009 hi i have a yzf-r125 yesterday i went out on my bike and everything was fine stopped off and my m8s house for a couple hours then went back to ride my bike but it wouldnt start. i tryied for a bout 10 mins then left it for a bit to settle but still without it starting then my battery went flat. so we started trying to bump start it and the first few goes nothing but then it did start but it only idled for about 2-3 seconds then dies and would start again for about 2-3 mins next time it started we tryed to give it some throttle but still it cut out as soon as we touched the throttle in the end we charged the battery up for about an hour to give it some life but still wouldnt fire once more we tryed to bump it and hey presto it started fine and i thought it was ok but the same thing happened tonight when i finished work. just to let you know last week we changed the engine as i blew the old one up but the old engine came from a good working bike that had only done about 800 miles. other that that the scorpian exhaust and the evotech tail tidy everythings standard. any ideas? thanks jamie Link to comment Share on other sites More sharing options...
JUST ME! Posted February 2, 2009 Share Posted February 2, 2009 "just to let you know last week we changed the engine as i blew the old one up but the old engine came from a good working bike that had only done about 800 miles. other that that the scorpian exhaust and the evotech tail tidy everythings standard." methinks you might look at ALL electrical ( & ignition ) connections for positive connection/possible corrosion. might be a broken wire making intermittent connection or a floating ground. -stev Geday mate, I agree with Steve re the probable elictrical drama. A friend of mine had a SV650 that was throwing the same sort of tantrum. However when his did it the FI light came on so I lifted his tank and started going through the couplers in the wiring loom. One of the first ones I unplugged and replugged was the coupler onto the air flow sensor on the air box. FI light went out, sprayed it with terminal cleaner and never had a drama with it again. Check all connections and make sure when they did the engine swap that all looms are running in their original locations just in case a connection has undue weight placed on it or a wire is rubbed through. Also check that all earth wires are grounded properly. If still no go, check clutch, side stand and neutral switch. It is often a prick of a job isolating the drama but when you do find it,it will probably be a very simple problem. Good luck! Paul. Link to comment Share on other sites More sharing options...
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