Just the idea from a 2stroke to a 4stroke says much!

Jets?

Is Misasa/aeroclub still going to send out forms as in the past to pay?
Waiting for more than a year for my membership card.
Got an sms to which I replied with my e mail address long ago, still nothing!!

Hope you do so something about the poor service, ie membership cards

Exactly. A thin point soldering iron!

Use a cheap soldering iron

There is no choke on a Rotax. It had an enricher - an additional fuel jet to rich the mixture up for cold start. If you 'Choke' an engine by blocking the airpath in the carb, it will suck neat mixture through the jets and swamp the engine with fuel (and oil if pre mixing). Unfortunately the enriche...

Only leaking or forming a gel? I am only worried about gel blocking the outlet from the tank causing fuel starvation.

Does 95 Vpower contain ethanol,all I use?