Buy a decomp & cable....Your life will suck a lot less.Dont have a decompressor on it,so hard to judge tdc for starting. Will look at pilot jet.
Good point.check it's screen and or filter bowl just to be sure.
Those are made by Karkoma of Germany.Good point.
The new ones have a plastic filter bowl that you can see through. The old ones have an aluminum bowl that may pass unnoticed.
It can clog slowly.
Another problem that can develop over time is a crack in the rubberized plastic intake manifold.
This is a well known fault.
The picture shows the location of the plastic bowl that unscrews.View attachment 6136