Clutching changes for 2.6” PC upgrade

I had that secondary set up on my m1000 a bit ago. If you are dropping RPM because of better hook up with the new track, you are just not shifting out as much as before with the added traction...and are seeing a different ratio that isn't holding Rs. That secondary can be sensitive to changes with this set-up...I found that the tighter the better. If you were pulling good Rs before, but not now I suspect you are just not backshifting as well as before. For me, I go after the secondary and increase tension. I ran a lot of preload on mine...worked well out of the hole and would hold Rs on long climbs. Not sure how the RKT is set up now, but I'd tighten up 3 to 4 holes if you can. Try that. Also, install a fresh primary spring. If you aren't getting Rs still, I'd consider a primary spring change. And gearing lower...check shift out on slow powder pulls with primary using marker, but I suspect you'll benefit from lower gearing...get the clutches spinning similar to before and shift out more...is more efficient. Good luck.

if your secondary is old its hurting you as well they do not last long

need alittle more

with the 2005 -06 DD secondary where you have the ability to incrementally increase spring side pressure, this situation was easily changed by just screwing in the white plastic nut until you had slightly slowed the upshift to have engine and track working together. Back then we were faced with this exact situation when everyone went to the new PC 2.25 tracks.

torsionly twisting a spring won't get you there, side pressure will.

I don't disagree with castled that preload (direct side pressure) is what you need. But this can be done torsionally (increased torsion does result in more side pressure, just not 1:1 like preload).

But with RKT secondary, you are looking at a new spring. Go for a secondary spring with more preload and similar torsion if you are out of adjustment.

Gear down! Then adjust clutching