Apex turbo secondary tension help!

[MR MOOSE]

I've been reading all the clutching threads trying to get an answer to this without bothering everyone with more clutching questions but no luck so here goes;
I've got a MCX 310 kit that I'm running 15-17lbs from. A 163" flex edge track and EZ RYDE skid. The primary clutch is BWB with 85g weights and 14.5 rollers. The secondary is purple spring with a shockwave helix.
I went for my first ride yesterday and on a good pull I felt the secondary slip, got home and went to tighten the spring up but too little too late! Secondary is toast, big groove in it and a nasty crack. I got another secondary and put it on but want to make sure I got it right this time. It was set at 3 turns out on the shockwave and 3-3 on the spring. I put it back together at 2 turns out on shockwave and 2-9 on the spring. Am I close or out to lunch? 2-9 was one hell of a twist! Heading to Revy on Friday and want to have a good time and not saw another secondary in half!
Sorry for the long post, thanks in advance for any help!!

 

[boost mod]

are there any grooves on the shockwave arms that would be causing it to bind and not open properly? the settings that you changed to is where i run mine. the secondary spring, i find, loses its strength quickly. i change it out almost every year.

 

[MR MOOSE]

Boost mod, first thing is sorry! I was trying to hit the quick reply button using my I phone and ranked your post as not helpfull. That's not what I meant to do, anyone know how to fix that? Thanks for the help, I checked the ramps and they seam good? Also I had just put new buttons in too. If your running my current setup without issue hopefully I will have the same luck.

 

[sledfvr]

I run 47 degrees on my shockwave, which is only 1 1/4 turns out. Any more than that and I had belt heat. Yours is 3 turns out which is 54 degrees, that is too much helix IMO and probably your problem. 3-3 is plenty tight on your spring. I run 2-3. make sure that no snow is getting into the clutches. I fought that too. Just my 2 cents.

 

[Cpt.Ron]

I run 47 degrees on my shockwave, which is only 1 1/4 turns out. Any more than that and I had belt heat. Yours is 3 turns out which is 54 degrees, that is too much helix IMO and probably your problem. 3-3 is plenty tight on your spring. I run 2-3. make sure that no snow is getting into the clutches. I fought that too. Just my 2 cents.

I am agreeing,


...beyond the limits on the "shockwave" will kill your belt in the secondary, ..or vice versa. I would take it one step further and say ,...just buy a straight 47 helix, cant go wrong with that. 2-3, or 3-0 on secondary with a purple spring should do it. As stated above, be sure you don't get any snow drifting in....

 

[sledfvr]

I am agreeing,


...beyond the limits on the "shockwave" will kill your belt in the secondary, ..or vice versa. I would take it one step further and say ,...just buy a straight 47 helix, cant go wrong with that. 2-3, or 3-0 on secondary with a purple spring should do it. As stated above, be sure you don't get any snow drifting in....

I actually ditched my shockwave last year for a yammi 47. 8bv71 is the yammi part number, if I remember right. Shockwave is hard on buttons too.

 

[M5-]

What did you end up doing with the gearing after that last thread. The purple EPI spring, the black Alpine and the Cat green are all the same spring. Put a Yamaha straight 47 in there and sell the Shockwave.

M5

 

[MR MOOSE]

I ended up going with 19/40 gearing. I do have a 47 helix outa my old viper, maybe I will throw it in. What tension u figure?

 

[Boosted Brad]

Re spring

I've had the purple Epi spring loose its side pressure change it every year good luck