My set up is I have a 2011 XP900 with just about 4000 miles now. A little over a year ago I took my perfect running no belt burning ride and installed the Alba Stage 2 kit with bigger cams, rooster clutch weights, Dobeck Gen4 with the o2 sensor, modified intake and the SLP muffler. I installed the cams myself and and verified I had good compression.
Since I installed the stage 2 kit I have blown probably a dozen belts both OEM and Gates Carbon. I usually blow the top off the belts if that means anything to ya. I weighted the primary the way Alba said to about 20 times but kept blowing belts when I got over about 60mph. Nate from Alba figured with the miles I had and the issues I must a new clutch or clutches although the rollers, bushings and such looked fine from what I could tell. I had install a new primary and at that and at the same time I had them install the SLP clutch kit with the Gold Black #40-400 primary spring, Green/Silver #40-421 secondary spring and 54 degree Straight Cut Helix which was supposed to give more belt grip, smoother shifting ect… My secondary was also disassembled, cleaned. We installed new rollers although the stock ones still looked ok. SLP recommended the rooster weights be adjusted from the outside in vs. Alba recommended inside out. SLP says outside in because of their straight cut helix. Either way I add weight I could just never make it right.
After all the new parts and time moving weights around not much has changed; I still blow belts and it feels like I’m taking off in second gear. Once I get to 10mph or so it goes pretty good. .
I recently discovered the only way I can keep it from smoking belts so often is to overweight the clutch. I currently have 71.5 grams in it but Alba says I should never need more than 65. Almost all the weight is in the heel and center holes.I hit the rev limiter from a dead stop with way more weight in the heel that I should need, Seems as if it’s always slipping. Top end RPM is 8350 which is good
I should add to this is that after looking at the clutch breakdown I realized my dealer messed up back when they assembled my new clutch and left out the spacers that go on either side of the roller bearing- which actually grooved into the fixed sheave a little bit. They also left out the white plastic limiter spacer. I have since installed but that didn’t take care of the issue either.
I now notice my primary sheaves have some noticeable wear (probably from the 9000 hole shots I’ve done trying to weight the clutch) so I fear yet another primary may be in my near future. I’m wondering where I should go with the rest of this stuff like springs, weights and helix. I have a lot of money in all that and hate to scrap it but wonder if that’s not part of the problem. I don’t have unlimited funds but in hind-site I suppose I should have bought two brand new clutches completely built up when I did the stage two but who woulda thought I needed all that, I had only used 2 belts in the first 3500 miles.
Sorry this is so lengthy but I wanted to document all the facts and list the parts I have in it for reference. I’ve nursed it along for the year but I just cant stand it any longer!!!
If you made it this far thanks for reading…Any suggestions?
Thanks
Dan
