Hi All, After purchasing a SBP hardware kit, my 2 Stroke 48cc has exhaust leaking out behind the clutch lever area. I think I may have over tightened it, that I have cracked something inside? I notice this on start up when in my garage, white smoke comes near the little 10t sprocket. I not sure exactly where yet. But I also have pressurised gas going out of the clutch cover. I noticed oil on my mudguard in a funny spot. Which lead me to the leak. Is this normal? Have I broken something? I think the engine has also lost power from this.