I must say prior to posting that i have only had a quick glance as to why the RR5 is dripping petrol. My son owns the bike and noticed petrol on the sprocket cover, he thought it was an oil leak but after having a look we could see and smell that it was petrol. Whilst the bike was parked in the garage i lifted the tank to see why it was leaking petrol and noticed the tank breather was detached at it's joint which explained the petrol on the engine case. I reconnected the breather. To cut a long story short has anyone else had this trouble, can't see any reason why it should be leaking petrol from the breather ps not a steady drip drip drip