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2000 Yamaha Warrior - No Spark

yamamama

By yamamama
in Yamaha ATV Forum

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yamamama Apprentice

yamamama

Posted
Posted

My sons 2000 yamaha warrior will not start. It will turn over but not fire. There is no spark @ the Spark plug. I can pull it off and it runs great. I tested the stator and the ohms were very low on one of the plugs. should i test anything else?? and if so how??? (i will apoloize in advance...i may not know the proper names of some parts..I have never done anything like this....I'm just a mom trying to fix sons bike...if i can. :frown:

yamamama Apprentice

yamamama

Posted
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I changed spark plug. Made sure wires going to spark plug had good connection. Tested the ohms from the wires coming from stator. One read 291 and the other much much lower, although i can't remember the exact #. sorry. I should have given you more info. hope this is better and thank you so much.

slickerthanyou Contributor

slickerthanyou

Posted
Posted

I don't have a manual for the warrior, but You may want to test the coil, (what the spark plug wire connects to). Even a bad plug boot can cause this.

Blaster/raptor/warrior/banshee- remove the plug boot by unscrewing it- check the resistance of the boot by; putting one end on the screw and the other where it plugs on the sparkplug should be between 4-6K Ω, if that checks ok next- the primary resistance of ignition coil [positive lead (red) to the skinny power wire coming out of coil unplug it to test this-to generator(stator) and negative lead (black) to one of the grounding terminal on either side of the coil] should get- 1.44-1.76Ω Secondary resistance [positive lead (red) to the plug wire and neg (black) to the power wire on coil to generator(stator) again unplugged] 5.28-7.92K Ω.

If any are not in this limit replace it! Hope this makes sense to ya!

oxidized_black Grand Master

oxidized_black

Posted
Posted

ok, stator is good because it runs when pull started.

cdi box is good because it runs fine.

voltage regulator is probably fine too.

coil is good because it runs fine when pull started.

how fast does the motor spin when trying to start with the electric start?

if it isn't fast enough, it won't produce a healthy enough spark .

it could be the battery or the starter, or both.

also, what i would do is strip as much plastic away so you can check all your wiring. there could be a bare wire(s) touching the frame. check everywhere the wiring is tie strapped on and where there are wear/rub marks regardless if it is encased in a protective plastic. peel it away and look and you can always tape it back up. you could also have someone help you to see if there are flashes in a dark garage or outside while cranking it over with the starter motor.

yamamama Apprentice

yamamama

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Thanks OB. I did try to jump it off with no luck. I pulled it with the tractor and it did start but I had to pull it pretty fast. I was then able to ride and it sounded great. I replaced the starter about a yr ago. Don't no if that matters or not???

yamamama Apprentice

yamamama

Posted
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Got it. So, if it runs after being pulled off then the stator is good? Thanks for all your help. I hope to understand this all of this someday. I hope I don't question u to death.

oxidized_black Grand Master

oxidized_black

Posted
Posted

:yes: we are all here to ride and have fun and help each other out, and you're not questioning me to death :no:

i think something is interupting the path of the electric starter, the bike runs fine with it being pull started, so i would have to think there is a wire(s) grounding or a bad starter or battery....

yamamama Apprentice

yamamama

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Can't wait till tomorrow to see if she will run again!!! Funny thing is ...my son is grounded from it. so I guess ill have to ride all day... haha......I can't thank u enough!!!

yamamama Apprentice

yamamama

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Posted (edited)

The screws that hold the pick up coil in are really tight and I don't want to stripe them. Any advise. Sorry fpr type

o'S I am using phone with gloves on. Didn't want u to think I was completely stupid. Ha

Edited by yamamama
oxidized_black Grand Master

oxidized_black

Posted
Posted

mine were in tight too, sometimes if you give them just a little tightening, just to move it ever so much, it breaks it free. then you can back them out. you can also try keeping the screwdriver in the slot, and tap it with a hammer...

oxidized_black Grand Master

oxidized_black

Posted
Posted

ah right on!! just time and perseverance is the key. i'm, struggling with a carburetor right now and all i want to do is find my sledge and put it out of its misery :laugh: but that's why i just took another break away from it .... good news yamamama !!

yamamama Apprentice

yamamama

Posted
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Will try just spraying carb cleaner 1 st (. Sorry for bouncing around..easier to post here by phone). Also,I only here the soud when in 4th and 5th gear. Don't know if that helps any

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