did the 103 with woods cams tuned it getting 108 t and 96 HP but now it seems my clutch is slipping. thinking of going with the SE clutch spring. is this enough or is there something better on the market.
Thanks

 

Did you change the clutch spring?

 

Are you using ATF in your primary? Some have increased holding clutch capacity when using ATF. Are you running stock heads with the cams and are they loud?

 

You need a variable clutch pressure device.

 

I'd try the SE clutch spring first.

 

The S/E Clutch Diaphragm spring is the cheap way to get more grip from the clutch, it only costs like $25 and is very easy to install. It should be plenty for your build, and take care of the slipping.

A Variable Pressure Clutch set up is another way to go, it will cost you about $250 and is again a pretty easy install. It uses centrifugal force with weights and acts like a lock-up device on the clutch. Everyone who has it loves it, and it reduces the clutch lever pull as well at low RPMS.

Steve

 

Get the medium pressure SE plate, I put them on all my bikes now even stock. I have had the RKC with 103 and HQ 107, it worked with no issue and still comfortable in traffic. Also put it on my stock Dyna as I feel it gives a more usable friction zone.

 

I think he means for the budget friendly fix try the SE first.

 

Does anyone have a link to the color coding and part numbers for the various clutch springs (blue, yellow etc.)?

 

37951-98 Nothing
37871-98A Yellow dot
37807-03 CVO Yellow dot / Pink dot
37871-04 Yellow dot / Yellow Stripe
37882-06 Redish Brown Square / Yellow dot

SE 380 lbs
98 330 lbs
04 300 lbs
06 300 lbs

Year Models P/N
99 99 - * ALL 37871-98
01 01 - * ALL 37871-98A
03 ALL 37871-98A
04 ALL 37871-04
06 37882-06