Hello guys, yesterday I bought a GPZ 500 and drove home (45 km) because you are top in shot according to VK. two weeks ago during the test drive everything was OK and also yesterday until shortly before home, since I turned up up to approx. 8000 rpm and from there you did not go more than 3000 – 4000 rpm no matter in any gear. I changed candles, filters and oil today in the hope of eliminating the problem. I firmly set the only 2 liters of oil from the 3,4 without filter. he was inside, this small amount can lead to damage to gearbox and engine because since then power loss has also been present a metallic ringing and you run very hard and unevenly. Thank you for pointing out advice and possible cost forecasts.