Two Primary Side Upgrades to my Fat Bob
 

After I finished my engine build and had my bike dynoed, Steve at GMR noticed that my clutch was slipping and recommended that I address the issue.

Already had the Barnett clutch spring, so I needed to either buy a better clutch or try upgrading my clutch plates. Upgrading the plates costs about $130 and a new clutch would be ~ $450 to $600, so I opted to try the plates.

After a fair amount of research, I chose the Alto Carbonite +1 Clutch Upgrade Kit #095750NC.

The second upgrade I decided to do was the Baker manual chain tensioner, which I will get to later.

Opened up the Primary:


https://cimg0.ibsrv.net/gimg/www.hdf...320c88d717.jpg

Soaked the friction plates in the new primary oil shown towards the back of pic. The narrow friction plate can be seen on top:


https://cimg3.ibsrv.net/gimg/www.hdf...266254c196.jpg

Loosened the 6 spring retainer bolts and pulled the diaphragm spring retainer, diaphragm spring and pressure plate:


https://cimg7.ibsrv.net/gimg/www.hdf...79be190310.jpg

Here is the new friction plate on the bottom and the old HD one, looks like a lot more friction material:

http://i1353.photobucket.com/albums/...ps378274e5.jpg

Here is a pic of the new steel plate on the bottom again, compared to the HD one:


https://cimg2.ibsrv.net/gimg/www.hdf...c57700c986.jpg

very interested in how this works out for you. i have done the EBC clutch packs on several bikes but not my HD yet... let me know please... i am going to do the Hayden M6-BT07 upgrade on my tensioner when i assemble that sucker

After you pull all the full size friction plates and all the steel plates, you will get to the narrow friction plate and inside of that the damper spring and the damper spring seat shown below. They are kinda hard to get to, so a little pick helps:


https://cimg5.ibsrv.net/gimg/www.hdf...70a509ac01.jpg

Cool! I had to get a Bandit. $499 ouch.

Been hearing more and more complaints of the revised Hayden keep the chain too tight.

Hey Joe, just to let ya know early - I pulled my M6 to install the Baker, just felt like the M6 keeps the chain soooo tight:icon_hyper:

Other option is to put the OEM auto in there, set to the correct tension, then remove it and have it TIG'ed.

Time to install the narrow friction plate, damper spring seat, damper spring(cupped side facing out), and then all the steel plates and friction plates alternating each time until they are all in.

A little punch helps to insert the plates:


https://cimg7.ibsrv.net/gimg/www.hdf...0e8a7862b4.jpg


They are all in:


https://cimg2.ibsrv.net/gimg/www.hdf...4e2f3e5e21.jpg

There is an extra friction and steel plate in the kit, but everything still fits in fine because the Alto plates are slightly narrower than the stock HD plates. The extra friction and steel give you a 12.5 percent increase in friction area that should help with any slipping issues.

Finished up the clutch upgrade by reinstalling the pressure plate, diaphragm spring, diaphragm spring retainer using the 6 bolts and torquing in a star sequence as per the HD SM.

Of course you will have to readjust your clutch too after installing new plates, never liked this part!