Hi, when I bought my bike I found some carb washers taped to the sub frame. I have always assumed they were the 33bhp adapters although when I posted the picture I said I was unsure and no one ever answered otherwise..

Well yesterday I bought a new OEM carb rubber marked 94 on the top for my R model, installed in the rubber was a metal washer, lo and behold this washer (now removed) was the same size as these I already have.

So I can now confirm these washers are NOT the 33bhp but the 53bhp restrictors. So who ever is selling a look alike set on ebay as 33bhp, sorry there not.

The offending washers: