nytro supercharger clutching nightmare help

[yamahacat69]

nytro rtx stage 1 mpi 5 psi new clutch kit they sent me 50 g super tips blue silver blue primary spring 53/41 helix purple spring wraped at 0-1. my issue is it hits rev limited soon as u squat the trottle heels loaded with 2 tungstens and 2 washers middle empty tip empty,, then i added few grams in middle now the top rpm is down to 8400,, is my weights no good to me anyone care to chime in thanks

 

[BlueApexXTX]

Call Allen Ulmer.. One phone call for me and Clutching has been spot on for over 6000 miles.Ulmer Racing161 E Poplar St
Menno, SD 57045
Phone: 605-387-2833 Fax: 605-387-2883 Email: Srxspec@Gwtc.net

 

[apexgturbo]

try a white Yamaha secondary spring wrapped at 6/1.or 3/3

 

[sheetwright]

I agree call Allen ulmer. good guy, and knows his clutching

 

[Yamadog]

It sounds more like a secondary spring wrap if at launch you hit the rev limiter then as it catches up your ok. Try 3/3 wrap and make sure you have the proper wind on the spring or it will bind on shift out slowing it to the primary shift

 

[kviper]

Agreed, call Allen! Sounds like you need more cam like 56/41, that will make it shift harder in the earlier part of the shift. If you are wound at 0-1 I would guess you have a pretty stout driven spring with tang's aligned? Many ways to skin a cat when it comes to clutching but I'am sure Allen could put you spot on with the first try and he won't sell you a load of crap you don't need!

 

[m.schuey7]

Very simple fix, call MPI and order 6 of their large steel rivits, add two to each clutch weight. I'm running same system and was also easily over revving. Pulls like gangbusters now with no over-rev, hard to read the tach at WOT but max revs appear to 9,000.