Bendi,
Are these surface scratches or do they go through the clearkote and paint? If surface scratches, the fix is easy: use a good automotive product. I like Meguiar's swirl mark remover (you'd want the one for dark colors since you have the blue Burgman, but it isn't critical). Using a clean applicator, lightly mist with a detailing apray or water, which ever you have. Put a modest amount of SMR on your applicator and lightly rub in parallel and perpendicular straight lines to the scratch until product has broken down and done it's job. Gently wipe with clean microfiber cloth. You might have to repeat a couple of times, but the scratches should be much less obvious or gone all together.
If you can feel the scratch with your fingernail, then you might want to consider a more aggressive approach (like wet sanding).
Good luck!
Madonna