I can't find the coolant leak on my 99 zrt 600?? Im loosing coolant about cup or two from the fill resorvior. I pulled the plugs and looked into the cylinders with a bore scope and saw nothing wrong. No leak at heat exchanger or any in the belly pan. I rode it on Saturday and parked it and checked the tank on Monday and there was pressure when I opened the coolant tank cap. So I even tried pressurizing the cooling system and still know leak. Can the water pump seals if they are bad etc. let coolant into the crankcase. I also need a good clutch set-up for this sled. It has PSI modblasterII pipes and D&D powerbreather but can only get 94mph in 1000ft........ What's wrong???????????? I have tried different clutch set-ups PSI/Blackmagic/D&D so far. Thanks for you help!! :(