22-06-2020, 02:28 PM
I had a similar problem with my RP saloon when I first had it. Apparently there are two versions of the 26V carburettor. If you get the wrong float chamber on, you get an impossibly fast tickover. There is a thread on this forum that I started on 10th April 2019, under the title 'Carburettor Problems'. Sorry I am too computer illiterate to post the link, but if you search for this, I am sure it will pop up, and it may assist.