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pick up coil and stator


cellboothmgr

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hello everyone. im new here so please dont hammer me for asking what might be a simple question. i tried searching but couldnt really find an answer.

 

i bought my banshee knowing there was no spark. the guy said it just needed a new ignition coil. i bought one on ebay and when i do the secondary test, i get infinite or no reading. i took the caps off and tested the - and wire and still get nothing. i tested the old coil and it gave me the same results. the first test both checked out at .4ohms

 

here is what the bike has

 

vitos +4 degree key

new stator

stage 2 cdi box

fmf exhaust

cool head

 

so i tested the stator hitting the green and red wires and they show 11.4 ohms. the giant post on this site says it should be 13-20ish. is 11.4 mean i have a bad stator?

 

 

when i hit the other 2 wires on the stator wiring harness, green/white and red/white(?), they showed nothing. i think that is testing the pick up coil?

 

i read that the pick up coil has to be set to a certain spec. would that cause the bike to have no spark? since the pick up coil tested with 0 i stopped testing wires because i am assuming thats my problem.

 

 

any help would be awesome. thanks

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update:

 

i disconnected the TORS box under the front left.

 

i checked with the manual i downloaded. from my readings i took, it says the stator and stator assembly and the ignition coil need replaced. the guy i bought the coil off of is sending me a replacement since it doesnt test out. should i replace the stator and the stator assembly or is there an easier fix?

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From what I've seen on here ign coils rarely go bad. The plug boots do go bad tho. I think for secondary coil test you have to use both plug wires. Stators do go bad especially if it's a Ricky or RS. Double check your tes procedure on the stator. On my son's shee I had to clean the poles on the stator ,inside of flywheel, and pick-up lugs on outside and gap P.U. coil.

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update:

 

i disconnected the TORS box under the front left.

 

i checked with the manual i downloaded. from my readings i took, it says the stator and stator assembly and the ignition coil need replaced. the guy i bought the coil off of is sending me a replacement since it doesnt test out. should i replace the stator and the stator assembly or is there an easier fix?

Most manuals are wrong on how to test a Banshee coil, most manuals say to check from one plug wire to ground. That is correct for a single cylinder coil or a coil used with a distributor. Banshee coils need to be checked from one plug wire to the other plug wire. If your white/red and white/green wires don't give you a reading, then your pickup coil is bad. When you install the new one it needs to be gapped to .017" or the thickness of a business card, to the nubs on the flywheel. Check it on both nubs to be sure there is not a runout problem. If you decide to buy a new stator, DO NOT buy one from Ricky Stator or RM Stator- they are junk and some are even bad brand new out of the box. I would buy a good used Yamaha stator before I bought a new aftermarket stator.

Edited by bansheesandrider
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Most manuals are wrong on how to test a Banshee coil, most manuals say to check from one plug wire to ground. That is correct for a single cylinder coil or a coil used with a distributor. Banshee coils need to be checked from one plug wire to the other plug wire. If your white/red and white/green wires don't give you a reading, then your pickup coil is bad. When you install the new one it needs to be gapped to .017" or the thickness of a business card, to the nubs on the flywheel. Check it on both nubs to be sure there is not a runout problem. If you decide to buy a new stator, DO NOT buy one from Ricky Stator or RM Stator- they are junk and some are even bad brand new out of the box. I would buy a good used Yamaha stator before I bought a new aftermarket stator.

 

 

 

thanks for the input. im planning on buying this: http://cgi.ebay.com/ebaymotors/87-1994-Yamaha-Banshee-Stator-ADJUSTABLE-TIMING-PLATE-_W0QQcmdZViewItemQQhashZitem43a1579196QQitemZ290469679510QQptZMotorsQ5fATVQ5fPartsQ5fAccessories#ht_1448wt_1043

 

the guy said i can send back the bad coil and pay the difference for the stator and adjustable timing plate. does that look like what im going to need to fix my problem? i want to make sure i do it right the first time so i dont have to spend all kinds of money and time on it... is there anyway i can tear it apart and just clean it up a little bit? or do i need to completely replace it with the stuff in the link.

 

 

thanks guys

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oh yeah, ray is a sponsor here. that is what you need, just check it over real good when you get it. they are used parts after all. about fixing the old one- you may find a broken connection on the pickup wiring, but normally a low ohm reading on the windings means they are cooked real good and some are shorting where you can't see, and need a re-wrap. unless you are well experienced at such wiring/windings, i wouldn't try it. besides the fact- i am experienced in such field, and do re-wraps. and i can tell you that it's about $20 in materials, 30-40min tear-down, and 3hours min to wrap just ignition, then solder epoxy, and dry time. if you are not experienced, you can spend all day, and might end up making a mistake on the tiniest thing, like wrap style, dry connection, etc. on a side note- i do pay $15 if you send your core. when you put the flywheel back on, make sure the taper is clean and not galled up. i like to hit it with emery or scotch brite and clean good. make sure the key is parallel with center-line, not taper, and use blue loctite on the nut.

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oh yeah, ray is a sponsor here. that is what you need, just check it over real good when you get it. they are used parts after all. about fixing the old one- you may find a broken connection on the pickup wiring, but normally a low ohm reading on the windings means they are cooked real good and some are shorting where you can't see, and need a re-wrap. unless you are well experienced at such wiring/windings, i wouldn't try it. besides the fact- i am experienced in such field, and do re-wraps. and i can tell you that it's about $20 in materials, 30-40min tear-down, and 3hours min to wrap just ignition, then solder epoxy, and dry time. if you are not experienced, you can spend all day, and might end up making a mistake on the tiniest thing, like wrap style, dry connection, etc. on a side note- i do pay $15 if you send your core. when you put the flywheel back on, make sure the taper is clean and not galled up. i like to hit it with emery or scotch brite and clean good. make sure the key is parallel with center-line, not taper, and use blue loctite on the nut.

 

 

 

awesome, again thanks for the help.....on a side note, when i was taking the cover off the stator and everything, i happened to notice i have 2 wires from the thumb throttle, black/yellow and black(i think) that were cut and just hanging there. i havent had time to look on here to see what they are or if they need to be connected somewhere yet.

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i ordered a used oem stator and pick up coil from ebay. hopefully that will come in this week so i can hit the trails.

 

 

i have another question that i cant seem to find an answer to....i have a +4degree key, when i took off my flywheel yesterday, the key was kind of loose so i popped it out. my question is, how do i put it back in or should i put in a stock key. i have an adjustable timing plate i found out, so i dont know why you would put a degree key in it. after reading a few threads on here it sounds like i should put a stock key in it and just use the timing plate. is there some kind of adhesive to keep the key in? do i put the stock key in flush with the contour of the shaft or level with the ground like i read you do with the degree key. is there someone you guys recommend i order the stock key from?

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