Garmin 750i

Morning all I was wondering if anyone might be able to help me, I would like to increase the size of the symbol when I am following a route on my 750i. I find it very hard to see the motorcycle symbol showing my position on the route. Cheers

 

I can't remember for sure but I think my Montana 700 had 'Default Small' as the vehicle cursor shown when I first got it, which is quite small and hard to see when moving on a bike or in a vehicle.
Perhaps try changing it to 'Default Big'.
With the Montana 7xx series devices you can choose from one of the vehicle cursors already on the device, you can add one or more from another source, or you can even create your own and use it.
They go in the Vehicle folder that's inside the Garmin folder on the device, once in there you set them as explained above.