Anyone done it? Any idea offhand what the ID and OD of the needed washers are? Or the OD of the springs/ID of the posts?

Even with poor jetting on the vm Im getting slip in 4th and 5th. Already replaced the clutch rod with the longer one . Reading up it seems a PITA to shim with different depths in the casing, and manufacturing variances in washers, etc. So new question...EBC springs are advertised as 10-15% stiffer (depending on vendor). Anyone know how much stiffer barnett springs are?

Take it down and 220 grit finish sand the steel plates and lightly hand sand the fiber plates (after solvent and hot soapy water wash) and you will likely find enough room in your basket to stick in a Yoda performance clutch mod (extra used steel and used fiber plate).

The extra height of your +1 stack is greater than the spacer washer would be, so you won't need the washer.  Plus you get 25% extra main plate action at the higher spring rate.

Or you can spend $110 for a Barnett Performance clutch pack .....



Your pick, of course.



PM me after you verify you have enough room in your basket

Here's my sight unseen bet --- you are running a 20w50 weight oil.

Wet clutches operate by oil sticktion and 20w50 is thicker than Suzuki originally recommended for the clutch and the bike.  You are losing some clutch efficiency due to heavy oil slippage.

If 20w50 is your oil, try changing to white jug Rotella 15w40 (or the blue jug 5w40 if you are a synthetic fan) and I bet after a week to flush the heavy stuff out of your clutch your slipping issue stops.

Rotella will also help strip out any energy star mess you may have gotten in there earlier (or the PO may have done).

This could save you from having to tear it all down and is mebbe worth a shot before the wrenches have to come out.

If you change out the clutch, I want your old plates.

Oldfeller,
I don't know about your owners manual, but mine says 20W-50 is acceptable for the temperature range I ride in.

Comment on 20w50 is based on finding out the oil type used by people who have slipping clutches over the years --
BurnPgh is the first one not to use 20w50 so far.

The plates of your clutch float on an oil film when they are slipping, the thicker the film the more slippage can occur and the less torque required to get the slip to happen.

BurnPgh may find he actually has worn clutch plates -- it happens.   Never seen a set out of service specs yet, but eventually that will happen too.

If so, I bet he has room for a Yoda +1 plate kit ....

Or he can spend a bunch of bucks on a clutch, whatever trips his trigger.

Then he can send me his old plates if he doesn't want to keep them.

I dont think Ive worn my plates. I just think between the stage 1 cam, a high-comp piston/1mm overbore, and VM carb Ive pushed the stock setup a little too far.