Hi guys, I have an old ZZR250 that doesn't get much use, and want to pass it on to my partner. Having a few issues though, and can't seem to diagnose the problem... Any help would be greatly appreciated!! Bike: 1991 Kawasaki ZZR 250 K's: about 18,000 No modifications, regularly maintained up until I stopped riding it about 18 months ago (brought it back gently though, didn't give it a rough time after it had sat for so long or anything!) Problem: Basically it starts out by riding fine. But after a few minutes it starts to feel a little drained for power. After around 10 mins you need to start revving it a lot more off a standing start (lights etc) to get it moving. After needing more and more revvs to get it going it really starts to feel very lethargic and eventually 'runs out of power'. When it stops it cannot be immeadiately restarted, but usually if I just let it sit and then restart it in a few days it doesn't have any troubles starting up. I had the tank and hose clamps replaced a few months ago because there was a fuel leak. Still seems to have a leak after the above problem happens though - a very constant drip. I've taken the tank off and checked the lines but haven't been able to see where the fuel was coming from. At first I thought I may have a blocked fuel filter (new tank and all) and that a blockage in it was causing there to be a decrease in the flow of fuel to the point where it was overheating. But I've since learned that these ZZR's dont actually HAVE a fuel filter... So I'm kind of at a loss now... any suggestions??