I think you will find the carburettor may be a 398/5 which has an oblong fuel bowl rather than round. This was a very late fit part and mainly by water boards etc. I do not know much about these but have never seen an issue with one.
Bruce,
Is this the 356/1 carburettor? It may be that the internal cross drillings are becoming blocked and may need an ultrasonic clean to clear them. It is not easy as the cross drillings are end blocked after manufacture. Additionally have you checked the jets and emulsion tube which sometimes gets a split or the solder end plug is missing.
Potentially it may also be related to a weak spark so may be magneto related.
email me if you need parts or more help njarrett@btinternet.com
Neil
Welcome. I am as far as known the only person with any new Ransomes MG spares but it is only my hobby. will need to establish which version of the crawler you have and I can send copies of manuals and parts books so please email me njarrett@btinternet.com
Neil
I am not entirely sure this is a type T as the starter shaft appears to be low down and the flywheel looks like it has the Vee belt groove to drive the cooling fan.
