whrere to buy new coils?

[quikvrsixx]

where can i find a set of NEW coils for a 81 gs750L? besides the stealership!

[bighamms]

I just picked up a used pair on ebay for $20. I recall seeing tons of gs750 coils on there. Also, if you want brand new and don't mind dropping a bit more cash, you may look at z1enterprises.com. also when i was shopping for mine, I called mikesxs.com which specializes on yamaha xs and they told me that they have a number of coils that would possibly work.

[BassCliff]

Hi,

The DynaTek coils from Z1 are a popular replacement. Accel also makes coils that work on these bikes.


Thank you for your indulgence,

BassCliff

[GSX550]

What makes you think you need new ones? I thought that as well, but the primary tested at 4.9 ohms and the secondary at 500 kilo ohms. This either meant that the secondary side was gone or I had a bad path.

First I unscrewed the plug caps and retested the coils. I now had 14 kilo ohms on the secondary side. That is perfect. This told me the coils were good. I then tested the plug caps, two were 5 and a bit kilo ohms, again perfect, the other two were nearing 500 kilo ohms.

I like to fix things so I pulled the caps apart. Mine were nkg caps so you just pull out the screw (it is held in by the washers) and out falls the resistor and the spring. I cleaned them all up and reassembled and now they both read 5 odd kilo ohms. It turns out these two caps were the outside ones which just fall to the outside of the tank so aren't as protected from the elements.

Reassembles the whole lot and I now have two coils all within spec. Total cost $0.00 and 1/2 an hour of my time. I'll pay that anyday.