'06 M7 Harsh Clutch Engagement

what elevation are you riding at? is the new clutch a cat clutch? what color spring does it have?

Need to find out what is in it. Weights could be notched, too light, clutch could be sticking, spring too stiff, lots of things it could be.

Too much side clearance on the belt. The ABC kit will make it silky smooth.

What CB8 said. You need about .020" clearance between the belt and side of clutch. Your choices are to have the spider reshimed to obtain this clearance or buy Thunder Products ABC. Since you know nothing about the clutch shimming is out of the question. You can install and adjust the clearance with the ABC. No more banging in, spinning the track and getting stuck because of it. You can ease out of a hole. Here it is.http://www.thunderproducts.com/ABC Clutch kit.htm

spring ?

What color of spring. Can change it with some weights does it tac on top end? Were are you located?

Before you start spending money on aftermarket stuff, make sure what you have is correct. All the hopups in the world aren't going to help if you have 2 x 35 gram weights, one 75 gram, no rollers, and a motorcycle suspension spring in it!

Excessive side clearance CAN def. make it slam in, we used to add shims for grass drags to MAKE them do that. But unless someone added them to make it like that, I doubt that is the issue. They don't get in there or change unless someone puts them there. Excessive side clearance isn't going to raise engagement much (if any) either.
It is probably something simple, more than likely maintenance related. Take a good look at it, find out what weights are in it. (Written on the side usually, a flashlight helps.) If you can get the clutch off, I like to kneel on the clutch to compress it, then you can look at the writing on the arms, make sure the rollers are in good shape, make sure the arms aren't flopping. (Shouldn't on that clutch, with fixed pins.) Things could be binding though. Don't let the clutch slip out from your knees wiht with a finger in there! Then you will have finger chunks in it, and that won't help. Clean/look at the spring, check for a color, and see if it has a stripe on it of another color. That will id the spring. Clutch on the sled, pull up and down on it, see if you can see any bushing play on the outer bushing. Hard to tell inner play without disassembly though. Can you take/post some pics?

Check and see what clutch spring is in your primary (they are color coded). All things being correct and functioning, the weight of the clutch spring has a lot to do with what RPM your clutch will engage at (soft spring, engages easy and at lower RPM. Stronger spring, engagement comes at a higher RPM).

You could have an incorrect or worn out clutch spring, or a worn out one. If it is the original 06 spring, it wouldn't hurt to replace it anyway. They aren't too expensive