Join Date: Feb 2015
Location: southern oregon
dont bother with the cdi i wont work with the flywheel you have and you will further destroy your harness.
if you jump across the big posts on the solenoid will it start.
you are going to need a manual with a wiring diagram to sort this out. you best bet is to order the paper clymer manual off of ebay for 25 bucks.
there is no short cut to chasing down a no spark issue you have to systematically rule out each component
on a warrior the spark circuit and the crank circuit are totally separate. i would start with chasing down the crank first. when you say the relay clicks are you talking about one of the 2 black boxes on the frame or do you mean the starter solenoid.
that one quick spark that you talk about is pretty common with the cheap ebay cdis but it is not always the case. before you spend any more money test the stator, pickup coils, primary coil, and make sure the orange wire that runs to the primary coil is in good shape. i suspect you old cdi was fine, they do fail but not commonly. 95% of the time no spark on a warrior is the stator or the pick up coil. again dont by one of the cheap ones and again dont buy anything except a manual to do you testing. if you do need a stator use a ricks motorsports or ricky stator. if you rule out everything there is a guy on her, tom bauer. not sure on the spelling and he might even pipe in but he build cdis for these old yamahas
i cant stress enough use the diagram and follow the manual to rule out electrical components. i guarantee even though it feels slow it will be faster and cheaper in the end.