Thanks Practical.
With the clutch pedal, there should be a lock in the slide on the left of the centre hump where all the controls are. This lock stops the pedal returning too far. Maybe that's the problem. Going by memory, the engine looks much the same, but check the pulley height anyway, maybe the pulley has been put on upside down.
The one I had was a terrible lime green colour when I bought it, and under that was a sand/tan colour. Someone else had obviously had a go at it in it's past. I say had, because that's part of what I do, buy, reco, and then sell.
The performance was quite good, for a 5 HP. Similar to a normal push mower when it comes to thick grass - ride the clutch and let the blades deal with the grass, then you're off again. Once you get used to it, there's no stalling!! lol. The single forward gear is all you need too, any faster and it'd load up the engine way too much.
Stripping the machine is interesting too. After taking off the cutter deck, (I put it up on axle stands), take off steering wheel, column, and shaft, then the centre cover for the controls. Then there's 4 bolts at the rear of the top deck. Then lift the deck at the front, and work in between the top deck and chassis to seperate the brake and clutch from the chassis. The pedal pivot bolts, the brake is above the chassis, the clutch is below, have to be undone. The pedals lift off with the top deck. It's a bit fiddly, and there's linkages that have to be disconected. There's also a tang on the clutch pedal that has to be straightened slightly to get it through the chassis. Then once you've undone the throttle control mounts, the top deck should lift off, just dont forget to hold you mouth with a drop of the bottom lip on the left, tougne rolled, and your left leg in the air. hahaha.
Cheers.