Track Day Rider
Join Date: Oct 2015
Location: New Carlisle, Ohio
Clutch issues, how long is yours lasting?
So I noticed Saturday when I was bracket racing my 10 that my mph was a couple mph slower then normal I was running the same, 9.40's but instead of 146, I was trapping 142-143.
So I went on a ride today and it slipping in all gearing when I nail it, right at the 9K. That was my warning since the clutch is toast just like the last time I blew it 3 weeks ago. I just pulled it apart and the steels are blued and burnt, the fibers were pretty dry.
I only got exactly 500 miles out of the clutch and its all ready toast. I mic'd a couple fibers and they mic'd to .107 thou 5 tenths and the steels to .101 thou 3 tenths. Mind you this was while it was scolding hot. I had replaced the whole clutch steels, fibers, and springs last time with the KG Clutch Factory clutch kit from Schnitz. "Supposedly" it's the same place the OE and APE Trac King come from. The clutch was smooth at the track and the bike rode awesome with it till all these issues started again.
I can't find any solid information on what the fibers and steels should mic out to, to be in tolerance. I took a picture of the clutch basket and will upload it because I'm not sure what I'm looking for to tell if it's okay or not, does anyone make a billet basket with the Gen 4's?
Also I looked all over everything on the box and it didn't say anything about not using synthetic oil, just to soak the fibers for 2 hours prior to install and I had soaked my over night. I run an OE filter and Amsoil synthetic per the guy I bought the bike from had instructed.
I just got off the phone with Dwayne a little bit ago at Cycle Concepts and talked to him about a Gen 1 style drag pak clutch with their heavy duty springs for 200 bucks. Is it worth the buy? Am I going to get more then 500 miles out of it?
Also I've been kicking around getting the Brocks clutch mod, or even making one, (I'm a precision machinest) who has one? How did it improve clutch life? What difference did you seen with your ET and mph at the track?
This is frustrating I got maybe 25-30 passes total out of this clutch. I just can't afford to be dumping over 200 dollars every month into a clutch. Has anyone considered doing something like the R1 oil mod? Will having oil spray directly at the clutch cause slippage issues?
Thanks in advance guys.