Hi all
At first glance I thought the blue bases were the same but after looking at the pictures posted there appears to be a difference. In the pictures Paul and Max have posted it shows two raised sections of casting radiating out from the centre of the base ( left side in Pauls pic ) As this would create a liquid catchment area there is a drain hole in the base between them. In this instance the liquid would be fuel as this area would be in line with the carby fuel bowl which has a bleed knob in the bottom.
My base doe's not have this. I'm wondering if the 2 and 4 stroke models were manufactured and released at the same time or did on e precede the other with a base modification introduced during that period, any idea's ?

PS Please check my post under wanted in case there is something you may have.

Cheers
wce