put me down for 3 as well!!!

I'll take two sets!

I'm in for two sets as well thankyou

I would purchase two sets.
Thank you for your efforts.
G.O.

I will take two sets as well.

Put me down for 2 sets.

If you have the driven spring made would it be for just stock tension or for different tensions for varied results?

Ok Guy's, I have been doing some work on this subject. I had to come up with a way to analyze and apply the data posted. I came up with a work sheet to use once I get the springs and how to apply to each case by case for proper fit and fitment hopefully with out issue. As I go I will refine according my own data as well and with what parts are being installed. In this post I used GO ODY's clutch and information from Nitro,Baz, "H", GO ODY,MAs racing and others.

I know bla, bla, bla. so here is some pics and pdf's of the pics. Please, all review and share thoughts.

PDF's first then pics.

pics of the pdf

What oil do you run in your trans?
How often do you change it ?

Mas-racing. I talk to them about the driven spring they told me no problem just let them know what ever we come up with and they can make it. So this my be a future project. "H" presently I run GN4 as far as changing it yearly and sometimes every other year if not ridden enough. Either way I check the level often post ride. I also check the balancer oil at the same time. If I change one I change both.

How do you figure you will come up with the correct spring tension based on a 20yr old spring that is stacked with a bunch of washers. I was under the impression that you found a nos spring, measured it at a machine shop/valve spring tool, and found someone to duplicate it.

Hello king, I had Done more investigation on the spring before having them made. You may or may not have seen/read what I did. viewtopic.php?f=43&t=13439

King, Have you had a chance to review? questions?

Anyone can take the numbers from baz, "H", NItro, Mas,other and myself and find a spring calculator and run the numbers. You will find what I did as far as the stress level of the stock spring and the max poundage (load point) based on stress. Then you can enter what I came up with as a stock replacement in way of poundage and being capable increasing the load point if needed. The new numbers will also be able to hold the stock load point as the plates wear. Then factor in the a set point than the range of available load point is higher. Basically less stress on the spring in a stock application and less stress when used in a increased load point applications. I can and will provide a chart for this as I rebuild the clutch with new parts. Then I will alter the posted work sheet with min and maximum value for each to use.

Could I have made the new spring just like stock, Yes.

Anyone can do this using the online calculator and have a set made. Just be sure you have a good handle on the numbers and there effects.

The big question here is why didn't any of the clutch company's I and other talked to do it. Lazy? I was really disappointed in Barnett for not doing this. One key thing I noticed when I talk to these and other company's was that I did not tell them was I was doing just what I wanted. Once I told them the machine is was an instant nothing I could do, sorry.

So all fell free to do it and order you a set. No biggy to me. I'll keep and use what I need and just toss the others.

Thanks for all this work you're are putting in. I am grateful for what you do, and all the others on here doing what they can and trying to keep our machines alive. If you do get the driven springs and don't mind I'll buy extras you have, or if you prefer just pass on where you got them and what I need to ask to get the right one from the maker.

Thx EZ

Contact a company such as comp cams. They actually make these parts in house themselves. Companies like Barnett out source the work and put their name on it.

I looked in to this a little bit.
My research would suggest the new spring data attached.
I am sure of the metric units, the English units is a conversion (I have no sense is they look correct or not).

H is this what you where looking for?

YES !

Thank you very much were trying to get some replacement springs and are using data from the old springs, having the exact info is of a great help thanks so much.

Thanks Lee. Looks like the ones I had made will not work.

Well here's another dilema with these springs.
I just measured the OL of the OEM springs I bought from PilotPete.
Now remember the Honda specified new length is 26.9mm
The service limit is 26.0mm
So there is 0.9mm wear till service limit.
None of mine are anywhere near that 26.9mm
Mine all average at about 26.5mm,so that's nearly 50%-half of the .9mm wear limit already gone,not available.
I measured with 2 diff digi verniers that I have.I then measured and checked set dimensions on each vernier against each other.
Both are same.I then measured some drill bit shanks for accuracy with both verniers,all good there too.
So someone has stuffed up bad at Honda? Too much grinding to spec length?
This would also contribute to short life,quicker wearing of the clutch plates.
Looks like when I use these springs,I'll also need to add a .4mm shim/washer.
Anyone else have a NOS set of springs to measure the OL?

That sucks Adnoh. Are you stuck paying for that whole lot? Can they be made to lee's specs instead? Or are they already finished?

I noticed that Baz back when you did the measurements. That is not like Honda to drop the ball like that.

Mas, Its too late. They MFG I talk to said no way to make the stock numbers work. That's not to say their is a different MFG that can or tell you yeas it will be OK. Heck I may have given them the wrong info. I'm confident in the spring I had made as far as working in my clutch, testing will tell. If $400.00 dollars will help an an american worker that good enough for me. There made here in the US by American workers. I may take a tax credit on them some how.

I do not want any one buying a product that they do not believe will work. There is enough of them guys already out there. An issue I can see happen is the free length. Lets say some one puts them in and then they sell it and the new owner checks them. They will be so far out of the books specs that it could miss lead them in to getting new ones.

Any way I took some of the info and put it in a pdf and pic to aid others or help follow along on this discussion.

I thought you were the one who said that they will not work. I am glad you think that they might. Let us know how the testing goes. I appreciate everything you are doing Adnoh.

She had emailed me wanting to know if she could help with the spring. She is not the mfg I ordered them from. I thought what teh heck lets see what She comes up with. I'm pretty sure I gave her the correct numbers.:


vanessa@acxesspring.com.

Hello Vanessa,
What were trying to achieve is a replacement spring for an ATV clutch that is no longer available.

We got some information from Honda on the spring. We also have information on the spring that we measured.
I will give you the information to see what you can do for us. What we are not sure of is the material the spring is made of. It lives it life in a ATV transmission wet with 10-40 motor (( Internal Combustion Engine ? )) oil. The load on the spring is Static Load.we need about 100 springs.

This is what Honda gave us:
Inline image 1( lees info)
This what we measured for the OD:
Pounds/IN Inch MM KG/MM
WD, Wire Dia 0.142 3.60
OD, Outside Dia 0.815 20.70
ID, Inside Dia 0.532 13.50
Mean Dia 0.673 17.10
Rate 564.00 10.10

This what the repair manual book says:

#1 ( book/Lee) Pounds Inch MM KG
Free Length 1.063 27.00
Length at Load (1) 0.787 19.99
Deflection( travle) 0.276 7.01
Load at Lenght 155.66 70.61

This is what we us to reference the numbers above:
Inline image 2( what I put together form lees info)

Thank you, Richard

Sorry Mas I hate to be a flip flop per on this. We will see how it goes. As soon as I get the springs I ordered in my hand I will set one and measure.

That sounds great.