RAF Motorbike markings

[cliffkinch]

Hello good people

If this is a duplicate please ignore but my post from earlier hasnt appeared

My aunt has set me a challenging task. Her uncle John Ronald b. 1909 in Glasgow served in the RAF in WW2 and she has no other details but would like to see what other records could be found. She only has 2 pictures, one a studio shot and the other (attached) which has him in a warm theatre of war given the uniform, on a bike

The bike has markings and I wondered if this could lead to a clue. I have seen that the C could denote Coastal Command but the rest is a mystery

The markings are C 7059 (zero is smudged) and underneath V (or Y?) .09

Cant see a cap badge nor rank insignia

Just looking if the bike insignia could lead to a squadron or any other strand of a clue

Thanks!