Hi,
I have a HPD Violet secondary spring for my Scrambler 400. My machine is completely stock as far as the motor goes. Everything is stock in my clutches right now. What holes should I put the HPD spring in, to get the best acceleration without killing my top end?
Thanks,
Scott

 

Id go 2-2

 

Okay, that's what I'm going to try. Someone else told me that too.
Thanks,
Scott

 

Well I put the spring in the secondary in the 2-2 position and replaced the buttons while I was in there. I can't really tell the difference. I'm pretty sure I did this right, you just turn the spring so it tightens then line it up with the key hole, right? The rest of my clutches and motor are completely stock so that might make a difference. Is there a better setting for me to try?

 

When you installed the spring did you turn the back sheave 1/3 turn counter clockwise before pushing it down to lock in? That would be with the helix facing up. If you dont preload the clutch it will be worse than stock and have no backshift. With a violet spring in the 2-2 position you should notice a considerable difference running at a slower speed. It will tend to hang in a lower gear ratio longer until you start giving it some gas.

 

hey polaris rider1 you may think about either a polaris green or yellow primary spring too.

 

From the way your described it, I'm pretty sure that's what I did. Anyways, this is what I did......

I layed down the half of the secondary with the buttons in it sticking up. Then I put the spring in the holes (2-2) in both the secondary half and helix. Then I turned the helix clockwise so the spring tightened until it lined up with the key hole. Then I pushed it down and got the snap ring on. Sound right?

I had a Polaris green that I tried before that I just gave to a buddy to use in his Sportsman 400. I didn't really like the Polaris Green, but that was the only change I did in the clutches at the time. The only difference I noticed was it revved up more, but didn't act any quicker or anything. Should I try a Polaris green or yellow with the HPD Violet secondary in a combination?

 

No, you almost got it right, but missed one thing. You are supposed to turn the helix a bit to line up the splines, but you only push it down enough to hold it in place (1/4 inch give or take). Before locking it down you have to take the sheave right under the helix and wind it 1/3 turn counter clockwise and then push the helix down and install the snap ring. You basically dont have any spring preload and it wont work well at all. Try it again and you'll get it next time. It might be good to have an extra pair of hands to help out holding it. Good luck!

 

I got it this time. I preloaded it and got it all back together with someone else's help. When I went to try it out at really really slow speeds and it acted normal, but I couldn't get any speed at all. I couldn't even make it up a little 4 or 5 foot hill out of the lawn. It wasn't upshifting at all, pretty much just stuck in a really low gear and reving up. Kind of like on a manual tranny when you put it in first and try and go fast without shifting. Any ideas or better positions to try? I took it apart and put it back together without the preload. It seems to work okay like this. Will it hurt anything running it like this or should I just put the stock spring back in and preload that?
Thanks,
Scott

 

Make sure you have the spring in the 2-2 or 1-1 setting. I prefer the 2-2 position. Also make 100% sure you are only going about 1/3 turn and not going too far. The violet secondary is a great spring to use. Make sure that you didnt get any grease or other stuff on the belt or clutches. Brake cleaner will work the best. Sanding the clutch sheaves, primary and secondary with some 400 grit sandpaper works well to help the belt "grip" but not too much. Last but not least I have to ask if you know how to check belt tension (or deflection) and how to adjust it. You have to keep at least one shim between the sheaves on the secondary clutch. The belt should ride a tiny bit above the secondary clutch if everything is about right. Anywhere from 1/16 to 1/8 would be normal. If you lay a straight edge on top of the belt from the primary to secondary clutch you can check the tension. Push down LIGHTLY in the middle of the belt until it snugs a bit and measure from the straightedge to the belt. It should be between 1&1/8 and 1&1/4 inch. If it's off then we can get into other things. Hope this helps, Bubba