Well the surprising thing is it didn't do much. The Scrambler clutch, with its' 46 gram weights works so well I didn't even go for the high altitude 44 gram weights. The one thing I did notice is the SMOOTHER take-off! It's like the stock blue spring is too short and lets the clutch "clunk" and engage too early. The white spring holds it back a little and engages more smoothly at a little higher rpm. But I can't tell if it's any faster.
My 2000 really woke up with the white spring.
The H.O. is already awake, and on its' third cup of coffee.
Silly Later,,,,Fourlix

 

Clutch "Clunk" ,

When you took off your PVT cover and changed spring did you notice any primary clutch grooving?

My H.O. has clunked since day one. I returned it back to the dealer with 251 miles on quad and primary clutch was totaled ( clutch sheaves grooved badly ). I am now on my third primary clutch and the clunk is back again. BTW I now have 812 miles on quad.

When dealership tried to fix the first time they instaled the lighter high altitude primary clutch weights. There was no clunk on take off but top end speed suffered by almost 5 mph.

Are fourlix and I the only people with this clutch clunk problem?

 

Hi Odin, Fourlix here. Glad to know the lighter weights slows your top speed, bummed to hear about your, and maybe my clutch. I have just 200 miles on mine, had it about 10 days, noticed the "clunk" right away. I just put the white spring in this afternoon and took it on a nice little ride. No clunk. I noticed that the clutch on my last SP and this one, with the stock blue spring, have no preload, that is, when you undo the bolts, there is no pressure from the spring felt. When you put in a white or green spring, which are longer, you have to compress the spring with the outer clutch piece with the bolts that hold it in place. So when I heard this "clunk", I figured it was the inner piece moving out with rpm against a spring that wasn't there yet. So, by putting the longer white spring in, that inner piece already has some force against it. As rpms increase it is already there holding it back from jumping and "clunking". Smoother take-off, no clunk.
Anyway, that is my take on it, I didn't notice any grooves in the pulleys,
maybe I fixed it without knowing it. I'll let you know what happens.
I was expecting a little kick from the white spring, which is what I got on my 2000SP, What we may have instead is the good fix.
Silly Later,,,Fourlix

 

I have 350 miles on my HO and no clunk yet.. Been riding mostly on steep rocky trails and a little bit of towing heavy loads. (1000+ lbs) Small amount of gravel moving with a 50" blade. Everything working fine so far.

 

i have about 3 miles on my HO and i noticed the clunk engagement right off idle,is this what you guys are feeling??

 

I didn't realize this "clunk" thing was going to get any reaction, but we've obviously found a little ***** in the armor of the new Sportsman H.O.
Okay let's talk clutch here for a minute. When we put lighter weights and stronger springs (white, green) in our PVT clutches we delay "take-off" (mostly spring) and keep the rpm up (mostly weights) for more power and acceleration. The
H.O. has very light weights and the short, light blue spring. So the primary clutch with this set up can pretty well do what it wants, like slide over and go "clunk". This is just the opposite of the guy who has heavy weights and puts a green spring in. We heard from a guy last week or so with this situation. He got a delayed take-off,
then it ran flat up to about 30, then took off again till it hit 50. The point is, there has to be a relationship between the weights and the spring, since one is pushing against the other.
Light weights go with stronger springs. I've got the white spring with 46 gram weights, so far, its
great, the clunk is gone, performance is smooth and powerful. A green spring might give it that KICK,,,,it could happen.
Silly Later,,,,,Fourlix