I tell you guys I have come up with a solution that is so simple but will be known as the 'brilliant pirate' solution for decades to come. Got to try it first so can't share it with you until it is proven...I am excited...Pirate
PIRATE'S BRILLIANT SOLUTION
Balloon tyres are brilliant for walking the AI across sand, down concrete ramps etc. but have two drawbacks:
1. The kart with the balloon tyes is a little unstable when supporting the full Island especially with other gear in the boat.
2. Virtually impossible to get the kart back under the boat and frame into the scuppers whilst still on the water, due to the incredible buoyancy of the wheels. We want this ability as we can then just paddle into the ramp, disembark and walk straight up the ramp with the boat being wheeled behind. Much simpler and cleaner than tilting the rig whilst in knee deep water to get the kart underneath.Solution
: Remove the valves from the tyres and fill each tyre one third with fresh water. This will make it a more stable kart and so much less buoyant making it easy to pop it under the boat whilst still at sea. Instructions:
Remove the valve using a bicycle valve remover. Depress the tyre to exhaust some air, then allow water in via the open valve under a slow running tap. Repeat a few times till you get enough water in. You can check how much water's in the tyre by holding the wheel vertical and rotating the open valve from top to bottom until water begins to run from the valve. As I said just a little more than a third full of water does the job, leaving the kart still buoyant enough to float easily.
Replace the valve after putting a little vaseline on the thread to minimise corrosion, then pump back up to 2 to 3 lbs per sq. foot. Go check it next time you use the boat and adjust the volume of water to suit your needs. I found just slightly more than a third full does it for me. The kart is a little heavier due to the weight of the water, but not excessively. It is definately a more stable base to carry the fully laden Adventure Island. Mickey witnessed the operation today and he was impressed...So will you be if you try it...Pirate
I added 2 pints to each wheel and found it possible to insert the cart whilst on water. However I think a bit more water would make it easier - so I am going to add another pint to each wheel & see whether that makes it easier.