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Replacement coils

  • Thread starter Thread starter Billy Ricks
  • Start date Start date
B

Billy Ricks

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Just for grins I bid on and won a set of coils from a late '90s Katana. I got them yesterday and checked the resistance readings on them. Turns out the hunch I had is right. They can be used as replacements for our GS bikes that call for 3 ohm coils. They bolt right on and work just fine. This means you don't have to spend over $100 replacing your old coils. Wait for a set from a newer Katana, Bandit, GSX-R or other Suzuki to be listed and bid on them. I got mine for about $30 and they are only a few years old. The very latest GSX-Rs use individual coils on each plug, so just make sure they are standard style coils.
 
Dink said:
Billy what a fantastic tip, Thanks!!
Click to expand...

Dink,
I always figured it would work. Physically they looked identical and in reality they are. You can end up with slightly used coils, wires, plug caps, and the newer coils have rubber tabs on the plug caps that I guess are for pulling the caps off the plugs, but they look like they will also keep the plugs somewhat dry in a driving rain or when washed. I'll have to see if the heat of our motors melts them. Here's the set I won, http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&category=10066&item=2415267199.
 
Should be lots of them with all of the sportbikes being crashed
 
SqDancerLynn1 said:
Should be lots of them with all of the sportbikes being crashed
Click to expand...

If you search under Suzuki, Katana, Bandit, GSX-R, and so on you can usually find at least 5 or 6 sets on Ebay at any given time. There's no reason to pay more than about $30 for a set off of a fairly new bike. Mine looked like they may have come off of a crashed bike. The primary terminals on one coil were bent. Nothing a pair of pliers didn't straighten out. My bike seems to be running better after replacing my 18 year old coils.
 
Re: Replacement coils

Billy Ricks said:
Just for grins I bid on and won a set of coils from a late '90s Katana. I got them yesterday and checked the resistance readings on them. Turns out the hunch I had is right. They can be used as replacements for our GS bikes that call for 3 ohm coils. They bolt right on and work just fine. This means you don't have to spend over $100 replacing your old coils. Wait for a set from a newer Katana, Bandit, GSX-R or other Suzuki to be listed and bid on them. I got mine for about $30 and they are only a few years old. The very latest GSX-Rs use individual coils on each plug, so just make sure they are standard style coils.
Click to expand...

Took this advice and bought a pair of '99 Suzie Bandit coils on ebay for $40. The wires were too short, so I bought an Accel universal auto wire set and replaced the wires..(had to dig out the old wires, stick the news one in and seal with RTV) bike runs great. Great tip!
 
I bought a pair of 2001 Bandit 1200 coils off ebay, hoping they would fit
my GS1000. The coils were smaller and didn't match up
to the holes on my bike. I bought some flat bar steel and made mounting brackets for them, I also had to replace the wires on the #2,3
coil because the wires were too short.
But, all's well that ends well.
They work great :P

Thanks for the tip Billy
Gods Peace
Mo
 
Wish I had known this when I bought my Dyna's, I'd have saved some cash!!!!:)
 
Great Tip!!!

Great Tip!!!

Read this tip and replaced my stock coils on my '78 GS1000 with a set off a '92 GSXR I got off eBay for $15! The coil wires from the GSXR were labled 1-4 & 2-3. I had to use each new coil on the opposite cylinder (coil 1-4 goes to cylinders 2-3)to make everything fit, but when I was done, I had nearly new coils, hot spark, extra boots, and almost nothing invested! Thank God for you and the GS Resources! :D
 
Right now there's two sets on ebay, one from an '87 GSXR and one from an '89... is it worth replacing my '83 coils for ones that are only a few years newer, or should I wait until some from the 90s come around? I've been getting mediocre mileage, so I'm thinking the 1100e coils could use a replacement.
-Lehrin
 
Wait for some newer ones,
You shouldn't have to pay more than about $30
fo some late '90's coils.

Peace
Mo
 
High output coils?

High output coils?

Hi,

I have a 79 gs1k, stock everything except for Dyna S ign. I want some high output or at least better performing coils for my old beastie. If there were an ideal set of coils out there, which would they be?

Thanks
 
Would 87 GSXR 1100 coils be a godd choice? They have been used for about 40k Km's
 
It only takes a little patience and a few days to find new lisings on Ebay. No sense in buying coils that are just a few years newer than what you have. The newest Gixxers have individual coils on built into each plug cap. Other than that any of them should work. Katana coils are probably the best choice since they still run the air/oil cooled motors. Those motors are wider than the liquid cooled so the wires should be long enough.
 
HUGE tip I just found out

HUGE tip I just found out

Get this everyone,

I just spoke to shop owner who raced gs1000's back in the day here in Canada. He won a ton of races on these bikes at the superbike level, and his advice to me about replacement coils was interesting.

He said that sure a newer coil from a late model GSXR of equal cc's would be better than our current set-up, but would not be the best.

The best would a set of coils from a Honda Shadow, even a pre 90's model. The reason being is that foreign manufacturers have to import everything, thus they (Suzuki) import smaller coils, because they weigh less. Whereas the Honda Shadow and some of the Honda bikes are made in the US, and the coils are made there too. He showed me a set of coils from a late 80's Shadow and they were Huge in comparison to a 90's version from a 1000 Gixxer. The more coil you have, the more power you'll have.

I hope this proves to be true.
 
I'm thinking with the clues the bike's presenting, I may need to replace at least one of the coils. Poor spark in no. 4, although no. 1 doesn't seem to be bad. Maybe it's just the wires. Anyways, I checked my book for any references as to what coils are needed, and the only thing I could find is that the range of my coils are anywhere from 3-5 ohms approx. on the primary windings. How is one to know what will work? I like this tip in here, as I know the stock coils are formidable prices at the dealer...

Even though the coils may not be the problem, I like the idea of newer coils. These are surely the originals, almost 20 years old. It may explain why when I put in a hotter plug, at the insistence of a dealer, it actually runs worse. (Straining an already weakened coil...) But I won't get into that here. Maybe put something in the technical thread later.

It's just that nobody has mentioned getting a set of Ebay coils for the 550 engine.

Robben
 
Robben,
3 ohm coils are what you need and they can measure anywhee between 3-5 ohms. The same coils we've been talking about here will work on your bike.
 
Thanks, Billy. Time ta shop! :twisted:

It's almost comical; One reference in the Haynes book, while discussing the electrical system in the 'general description', states that "it will be seen that the system is very simple in design, and given the inherent reliability of transistor circuits, the arrangement will be found to require little attention in normal use." 8O 8O :?

Robben
 
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