Hi Jon, thanks for help. Ive ordered a new impeller and seal today and i will check the w/p shaft tonight. When i first saw the bike it looked in really good condtion but it probably hasnt been serviced in years. God knows what the rest of the engine is like. If i can sort the water problem out i`ll start taking off the barrel and hopefully theres no suprises. Also noticed that the fan never came on when it had been running for a while so i`ll check it to. The joys of buying a old bike. Am just getting into trails and didnt want to spend to much on a bike. Lesson learnt. Thanks again for your help, i`ll let you know how it goes.