97Banshee123456 Posted April 11, 2015 Report Share Posted April 11, 2015 97 banshee getting no spark what should I replace first? Quote Link to comment Share on other sites More sharing options...
oldskool Posted April 11, 2015 Report Share Posted April 11, 2015 well, prolly shouldn't replace anything except plugs, then do some checking of electrical parts. start with grounds. It could be a number of things. Everything but cdi can be tested. A service manual wiil have all specs and procedures Quote Link to comment Share on other sites More sharing options...
97Banshee123456 Posted April 12, 2015 Author Report Share Posted April 12, 2015 I have brand new plugs but I'll test the starting coil and what not Quote Link to comment Share on other sites More sharing options...
98_sheester Posted April 14, 2015 Report Share Posted April 14, 2015 Im no electric guy but first question has it run before you changed anything if so was it hard to start maybe the stator magnet is weak. Do you have the tors kit still on it Quote Link to comment Share on other sites More sharing options...
Tyler S Posted April 16, 2015 Report Share Posted April 16, 2015 If you still have the tors system, unplug the connector to the little box up by the coil under the tank. This should disable the tors and if you get spark theres your problem. If there is no tors make sure you have new plugs, good wires and good caps, if not replace any parts that are wore out. If still no spark you will have to unplug the stator and check all of the coils for resistance. Get a digital multi-meter and set it to ohms or resistance. Put one meter lead on the red wire and the other on the green wire coming out of the stator, the restating should be 13 to 20 ohms. This is the ignition coil so if you are reading OL or the wrong resistance that means there is a short somewhere. If it is OL that means that the wire is broken somewhere, if it is the wrong resistance that means that the windings are probably shorted and it is skipping over part of the coil. Next step is to check the trigger coil this is the red/white and green/white wires, this resistance should be 94 to 140 ohms. If you have OL or the wrong reading for this the same applies for this coil. You can also test the black and yellow wires if you want, however those are for the lighting system so they really don't matter for spark. If everything is good here, check all of the wires to the cdi box and then to the coil under the tank and make sure that everything is good. Next would be check the coil under the tank, the best way to test this one is to switch it out with one that you know is good. If there still is no spark at this point I would check that all of the grounds on the bike are good and still exist, the one on the frame by the voltage regulator and the coil under the tank grounds to the frame so make sure it is clean. I would also check the resistance of the spark plug cap, unscrew it and remove it to check the resistance, it should by about 5,000 ohms. I would also check your flywheel and make sure that there are no broken magnets and that the trigger coil gap is within spec. If all of these items are good than it is probably your cdi box, there is no way to actually check the cdi box. Hope this helps. Quote Link to comment Share on other sites More sharing options...
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