casperrasper Posted April 6, 2012 Report Share Posted April 6, 2012 hi all .got beta evo 250 2010 wound nt start so i did all the usual checks spoke to beta uk they said prob stator.so i sent to west country winding .had a new pickup and stator rewound put them on bike still wont start .the bike sparks once at begining of kick and once at the end of rotation .checked black and white cable going in to cdi its reading 250 oms .i am totally puzzeld can anyone help Quote Link to comment Share on other sites More sharing options...
cabby Posted April 6, 2012 Report Share Posted April 6, 2012 Still have original beta kill switch on ? Quote Link to comment Share on other sites More sharing options...
casperrasper Posted April 6, 2012 Author Report Share Posted April 6, 2012 im not sure but i disconeted completly to make sure Quote Link to comment Share on other sites More sharing options...
fatbastard Posted April 6, 2012 Report Share Posted April 6, 2012 Sounds familiar , after fitting a new stator mine was the kill switch. Quote Link to comment Share on other sites More sharing options...
casperrasper Posted April 6, 2012 Author Report Share Posted April 6, 2012 think i will speak to lampkins see if they can help .i dont want to just buy parts for sake of it ..its an hard 1 Quote Link to comment Share on other sites More sharing options...
dadof2 Posted April 6, 2012 Report Share Posted April 6, 2012 (edited) 250 Ohms sounds about right for the source (ignition power generating) coil. Check the resistance of the pick up (timing trigger) coil. I would expect it to be 850 to 1300 OHMS. Rig up an electric drill so you can steadily spin the engine. at about 450 RPM you should get about 20 to 30 volts AC from the source coil and 1.5 to 2 volts AC from the trigger coil. If all is as above and its not the kill switch try borrowing a known goog CDI and ignition coil. Check for wire to coil shorting intermittently on frame. Try spinning the engine in a dark garage and look for stray sparks. Cheers Edited April 6, 2012 by Dadof2 Quote Link to comment Share on other sites More sharing options...
totalshell Posted April 7, 2012 Report Share Posted April 7, 2012 i think by getting a third party to repair an oem part many importers would wash thier hands of the problem.. Quote Link to comment Share on other sites More sharing options...
casperrasper Posted April 7, 2012 Author Report Share Posted April 7, 2012 well to be fair an importer told my to do that ..if the parts were made better from start so many people wouldnt have electric problems ..cheers Quote Link to comment Share on other sites More sharing options...
trialtrial Posted April 8, 2012 Report Share Posted April 8, 2012 250 Ohms sounds about right for the source (ignition power generating) coil. Check the resistance of the pick up (timing trigger) coil. I would expect it to be 850 to 1300 OHMS. Rig up an electric drill so you can steadily spin the engine. at about 450 RPM you should get about 20 to 30 volts AC from the source coil and 1.5 to 2 volts AC from the trigger coil. If all is as above and its not the kill switch try borrowing a known goog CDI and ignition coil. Check for wire to coil shorting intermittently on frame. Try spinning the engine in a dark garage and look for stray sparks. I totally agree - this will confirm your stator output. Then if you can borrow a CDI and coil, that will confirm the sparking. If that does not work, you have something wrong in the fuel system, crap in the carb, no flow, broken fuel switch. Quote Link to comment Share on other sites More sharing options...
casperrasper Posted April 13, 2012 Author Report Share Posted April 13, 2012 well after all .i put new stator on and cdi now it is working again .so it was the cdi Quote Link to comment Share on other sites More sharing options...
trialtrial Posted April 17, 2012 Report Share Posted April 17, 2012 Very interesting that the bike would still spark with a bad CDI - perhaps its timing was off or too low power. Glad you got it figured out. Quote Link to comment Share on other sites More sharing options...
pindie Posted April 17, 2012 Report Share Posted April 17, 2012 Have you checked the obvious such as fuel flow and spark etc? Quote Link to comment Share on other sites More sharing options...
trialtrial Posted April 18, 2012 Report Share Posted April 18, 2012 pindie, - ya gotta read the thread! He said he fixed it. CDI. :-) Quote Link to comment Share on other sites More sharing options...
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