Well after a huge amount of restraint on my part
I finally have my slipper clutch and installed it last weekend.
First I wanna give a shout out to Chris at motorcyclewishlist.com(
chris@motorcyclewishlist.com). He gave me what I consider to be a sweet deal!! 'Tis the time of year and all and you KNOW you've been good. So give him a shout and get the cool stuff YOU have been showing restraint on!!
On to the initial impressions and install. After unpacking and much fondling of said slipper clutch (very nice quality), I proceeded to read the directions (shocker huh?). Well, let me say that they are CRAP. If it wasn't for the fair amount of pics included (both on CD), things coulda been ugly. Luckily I found some better stuff (wasn't easy for some reason) on the yoyodyne site. Plus I emailed Steve (tigre) as he was running the same clutch on his race bike and had a good phone call with him as well to get my head in order and make sense of it all.
Between ALL of that and a follow up phone call to Fred @ yoyoydyne (just to be sure) all is well.
This install is not hard but it is not for the faint hearted or those without tools (and a helper!). You really need an electric or air impact gun and a 32mm socket for the OE nut and a 30mm socket for the Yoyodyne main nut to make things easy. It has 140 ft lbs on that sucker and without a clutch "holding" tool can be a bear to crank off by hand. After getting a picture of the install in my head it was time to crack 'er open...
So it's however-many bolts to remove the clutch cover you have on your bike, 6 bolts for the clutch springs/retainers, the clutch pushrod may or may not come out with the pressure plate (mine did), unload as many of the friction and drive(metal) plates as you can, if not all (you will need picks to get 'em all out), and you are faced with the mother of all main clutch nuts. Crank that sucker off with the method available to you (air gun for me
) and remove it, a "dished" washer and one of the aforementioned o-rings. You then have the basket and the spacer (that you aren't sure of how it comes out or that it houses the o-ring that you need to reinstall). A quick twist or two with a set of channel-locks and the spacer came out (make sure you dig out the green o-ring GENTLY), then 8 15mm(IIRC) bolts with only 25ish ft lbs on them(30-34nm) and the basket is off.
What wasn't really clear was the number of o-rings on the bike. The instructions state to remove the 0-ring from the original spacer, install on shaft and install new spacer provided. Well this is fine and dandy but there were two and the one they were talking about is installed INSIDE the innermost spacer in question and if you don't happen to look inside it when you remove it you wouldn't know! Until you happen to see it in one of the pics and think to yourself: "Self, the one I took out was black, that one is green!" Hmmmm, me thinks I better go back and have another look at things.
Clean everything off (locktite etc) and install in reverse order (checking pics frequently to ascertain orientation of washers etc). The trick is to hold the 2-piece hub (this houses the ramps & balls for the slipper action) together with 2 of the springs and inverted retainers and bolts. Then start with a friction plate on a slipper then alternate plates all the way out, ending in a drive(metal) plate. I had purchased the sintered clutch plate set as well and it came pre-stacked and zip-tied together(nice!) There seems to be some diff of opinion on what is referred to as the clutch stack height. Steve (tigre) said it had to be between 36 & 36.5mm, a very narrow range. The pre-stacked clutch set was 36.65mm so I went ahead and loaded the entire stack as it came. Reinsert the clutch pushrod (put some synth grease on the o-rings on it). Install the new (RED!) pressure plate and springs/retainers and bolts and voila!
I thought on the initial test ride (very short as it was 38 degrees!) that it dragged a bit. I decided to wait until Monday and call Fred at Yoyodyne. He said all is well and after a bit of a "burn in" the plates will seat some and things will free up! SWEET!
I know, I know! This thread is worthless without pics!!
I had no batteries for the digicam while I was doin' the deed, but I got some just today:
More are here:
http://s239.photobucket.com/albums/ff38/hypurone/Monster%20S4RS/Yoydyne%20Slipper%20Clutch/Thanks for reading/looking and go ride!
