87 warrior

[donk2766]

does anyone know how an 87 warrior cdi gets power what wire and from where i have no spark

 

[YAMAHAULER]

I would start with checking all grounds and connections then ohm the stator ,source coil and pick up coil

On the 3 white wires coming out of the stator, they should all have 0.7~0.8 ohms resistance in all three combinations. That means imagine numbering each white wire either 1, 2, or 3. Check 1 to 2, 1 to 3 and 2 to 3. Also, check any one of the white wires to the laminated iron core of the stator. ANY continuity to ground indicates the stator has had an insulation breakdown and will have to be replaced.

To test the Source coil (for the ignition) connect your pocket tester from the white/green wire to the red wire. Resistance should be 270~330 ohms resistance.

To test the pickup coil, connect your tester from the blue to the yellow wire. Resistance should be 171~209 ohms resistance.

 

[donk2766]

everything tests good

 

[YAMAHAULER]

well there is no way to test the cdi so if everything else is within spec then it might need a new cdi

 

[donk2766]

ok thanks i will try that

 

[YAMAHAULER]

good luck finding a good one 1st gen cdi's are few and pricey

 

[jeffsyfm350x]

good luck finding a good one 1st gen cdi's are few and pricey

I think 98 is selling one..

 

[jeffsyfm350x]

I think 98 is selling one..

nope 97-01

 

[yfm350mt]

isn't the brown wire the power wire to everything?