I love them but even a dealership that sold TVR and Lotus recomended that I should buy the Lotus doe to unreliability issues that I would incur.
A past member here has got the 350c and he says it is liek what you here but fortunately he has a company mechanic. Just to change the battery or to jump start it you had to take the NS wheel off.
Bought the Zed instead
from another post...
the non return valve is just under the plastic cover at the top of the rear window. New ones can be purchased from Halfrauds for a couple of quid
Thanks Mike ... I'll try unblocking the hole tomorrow .. but failing that where abouts can I find the non-return value in the boot hatch?
download the service manual here viewtopic.php?f=35&t=2945
should be in there, where it is and how to get to it