That looks great Jim, I saw one (full size but not that much bigger) the other week and you have captured the spirit and look of the original beautifully.

A step backwards.
Checked the oil yesterday and it spilled out and smelled of fuel.
I have an over-fueling situation
Engine out, and I have to check the carb float seal and drain the oil + add new.
Any other reason this could be?

How old is the engine? just wondering if it's used and had a hard life with a fair bit of blow by. If it's a fairly fresh engine and it's only ever been run for a few minutes at a time, it could be just that the cylinder has never been hot enough to prevent too much wall wetting, where petrol sticks to the 'cold' cylinder walls and gets swept into the crankcase on the power stroke.

Could also be something else, but if it seems to running well otherwise, it may be worth getting it running for a good 10 mins or so on fresh oil and check again for a petrol smell.

Hope it helps and good luck tracking down the cause

Think I have sorted the engine out, touch wood, it is behaving. I have been corrected that what I thought was a jack staff is actually a flag staff due to its position on the vehicle. I got a small flag made from the logo file. if anyone has copyright and objects I will not use it.
All ready to tow now, a little testing tomorrow on a bit of land I have got permission for and Sywell next week.

First trip out to a small car park in a private location of a club I am a member of. Not the wide open spaces I would prefer for a full test but enough to give me first impressions.
1. It takes off like a scalded cat.
2. The throttle response is good, but the amount of travel the pedal needs to actuate the throttle takes a light foot.
3. brakes need bedding in but can lock up the rear
4. turning circle is great
5. Steering could get a little heavy on the arms if I did a lot of turning
6. REMINDER TO SELF!!! Don't dab the accelerator and turn in, you lift the inside wheel too easily"
7. Fix the front grill your fat belly dislodged whilst unloading. 
I am claiming this as a success, it was fun and informative. The seat works well for a bit of comfort and the springs coped with all the pot holes in the car park... Here is a bit of video footage of the ride...
https://youtu.be/f7m3Q8fRNPc

Nerves Rhys 

Well done Jim, great to see another CK finished and moving under its own power.

After the Sywell shakedown, I am pleased to report nothing dropped off and "Slippery Jim" the CycleKart managed all the runs reliably. The engine works well and the standing start acceleration is good

There are, as expected, things to alter, some of which I did yesterday.

Slippery Jim decided 35 mph was the point the steering would get twitchy and I was not brave enough to push through it in front of a big crowd. I did not want to be the one in the back of the recovery land rover so discretion, valour etc.

The 3mm toe in had drifted to a touch toe out by the time I got home so some investigation needed as to the cause if it continues to move. At the moment I will put it down to settling in.

I had confused my camber for positive 1 degree when actually it was set to negative 1.2 degrees upon checking. As I could lift the inside wheel on heavy acceleration whilst turning, I have backed this off to 0.2 degrees negative. Only testing will see if I'm right.

I am on with making a second steering column to include the Safe-De-Speeder I have mentioned in another post. The steering was heavy and quick but the toe out and the negative camber cannot have helped that so this is still in the realms of me experimenting. (I'm just that kind of guy)

I am slowly planning bling for old Slippery having seen how the Karts are lifted as aesthetic objects when it is tastefully applied. I have nowhere to hang the furry dice so I will start with the dashboard and work out, I feel like tastefully designed campaign stickers for each event attended would be fun and am contemplating perhaps adding patina but this is early days thinking.

https://youtu.be/nowUJh0DIfk