While David Cameron has substantial personal support among the community, with 64 per cent saying he had the best attitude towards Jews, Labour leader Ed Miliband was preferred by only 13 per cent.
Mr Johnson, visiting the area to support the Tory’s Finchley and Golders Green candidate Mike Freer, met members of the Jewish community in stores including Kosher Kingdom and a Norwood charity shop.
He also posed for pictures with staff from Jewish Care’s Maurice and Vivienne Wohl Campus.
The mayor said he would challenge Transport for London on its plans to scrap the number 13 bus route which runs from Golders Green to Finchley Road. The JW3 Jewish community centre criticised TfL’s plan.
Mr Johnson denied he was gearing up for a potential Conservative leadership campaign if Mr Cameron losses the election. He said he had not been on diet but had instead been “bingeing over Easter”.