Indicators

Hey, hope I can get some help ASAP
My indicators all work when indicating left but when indicating right the rear one flashes very quickly and front and side doesn't at all. This would suggest front/side bulb replacement but I've replaced both and it's still not working. Any ideas?
Cheers

Do they work with the hazard switch?
Did you clean up the connection when replacing the bulbs?

No when the hazard switch is on all lights flash at normal speed apart from the two that aren't working.
No I haven't cleaned the contacts up but to be honest it all looks relatively clean. I'll give that a go just to be sure though.
Any other thoughts?
Cheers

So update, when I swap the wiring and bypass the side indicator all together with the plugs the front one works fine, any thoughts? Cheers

Check the  voltage on the bulbs  

How do I do that and what should they be? It's strange because these are the same bulbs that used to work before I took it off the road lol 

should see 12v across the wires on the bulb plug. you need to go thru the bulb holder, wiring and mating plugs starting at the affected bulb and work your way back till you find the problem

Ok mate I'll give it a go later 👍
Will let you know how I get on 

Fixed it, swapped the connectors over from the other side and now everything is working lol 
Not sure I'll ever understand electrics but sorted now, onto the next job for the MOT then…
Cheers for the help everyone!