The Raptor 700 may suffer from clutch slipage once the motor starts making more power through modifications. Here's the solution: 60% heavier clutch springs! In stock and ready to ship, $39.95 for a set of six, plus shipping.
Heavy clutch springs are also available for the YFZ450, plus Can-Am/Bombardier DS650 & DS450, and Rotax/Can-Am/KTM/ATK 500, 560 and 600 engines. See our website for more info, http://www.rotax.net/