We've done the unthinkable. While adjusting the valve clearances on my ZZR we've managed to drop a 40mm long bolt down past the timing-chain sprocket on the crankshaft. Tried the magnet deal, but can't even see the bolt. Question is, how do we get it out? Do we take the clutch cover off or has it just gone down into the sump? How about if we take the oil filter out? Can someone offer some advice as we're feeling pretty stupid and desperate right now. Don't want to keep the rocker cover off for ever and a day obviously. Many thanks! :grin: SERA.