Hello all. I recently discovered that my '99 yz125 is leaking coolant into the transmission oil. Ive been doing research and this seems like a fairly common problem and a relatively easy fix. Ive never done this before so im wondering what exactly i will need to fix this. Ive found this water pump kit from the local shop http://www.pilgrimpowersports.com/KS-YAMAHA-WATER-PUMP-REPAIR-KIT-detail.htm?productId=10852367&ez=water%20pump%20seal which costs about 35$. Im pretty broke and looking to do this for as cheap as possible. Looking at the yamaha motors website i priced out what i think i need for about half that. http://parts.yamaha-motor.com/partimage.gifx?d=124861,2,0,sport ...but im worried i may be leaving something out. From the yamaha site id need parts 6, 7, and 10...and i think also one big gasket for the crankcase. Is there anything else that id need? If coolant has leaked into the tranny and sat for a while will it have messed up other parts? Ive read that its possible the bearing will need to be replaced but i will not know until i pull it all apart.