Heres some info 2001 summit HM 800 stock engine ,159 x 2'' inch track ,19 - 43 teeth gearing ,9 tooth drivers ,Now this is the problem the secondary clutch is being replaced (worn beyond limits ), with a new Rapid Reaction TS 04 clutch, ,old clutch helix was 50/47 ,primary clutch has black with purple yellow dots engagement is 4200 rpm ,WHAT would be a good helix degree to go with this combination ,mostly do boon docking and some hills .