Ok, so I have decided that I must be too thick to do bike maintenace! As some of you may know, I had to buy a leverage bar to get the front sprocket loose. So this morning, having the morning off work and the sun shinning I decided to get the job done. With front sprocket cracked I split the chain. No problems and starting to feel good. I removed the rear wheel, axle came out easily and rear sprocket off once I found a way of holding it to loosen the nuts. Next time I'll be cracking them before taking the wheel off! So front and rear sprocket changed, old chain off ... next thing to do is replace the rear wheel. Bit fiddly but managed to get the axle back in and castleated nut and washer back on. Loosened the chain adjuster to give loads of slack for the new chain and got the new chain on and joined with the greased O rings and plate. Joining was harder than I thought ... not as strong in the hands and arms as I used to be Anyway, all went well ... just left with adjusting the chain. Now here is my problem. After adjusting the chain I seem to have a tight spot and a very slack part. Worse than the old chain and sprocket set If I adjust as I do for normal adjustments I get part superslack like racing slack and a tight spot that barely moves! I started the bike and put it in 1st to see if the rear wheel looks like it is running true just incase I have totallymissread the adjusting marks and the clanking noise is horrendous! Chain obviously too loose but I can't take up the slack without making the tight spot even tighter and risk breaking the chain. The tight spot is close to the joining link! What have I done wrong?