Yamaha Aerox 50cc (80cc) 2000 - head light bulb, weight rollers, Exhaust questions

Hi guys.
New guy here, and new to scooters.
I have not had a moped (50cc) since early 80s and they did not look anything at all like they do today. Everything is way more complicated and "electronic" today.

Anyway. I got me one of these scooter mopeds 2 days ago to have for shorter trips etc now during Covid19 restrictions.
I work from home and the car i have not used for months, so this will be a new little toy for me.

I will paste the specs of my bike below. But right now.

headlight is dead, bulb dead. So while im getting a new, i want to ask, what is the best, strongest "road legal" light bulbs that can be used. as for the car i have replaced Halogen with LED. much better result in dark driving.
So just want to know what you guys have been using. I think its a BA20D 35/35 as standard, and thats probably just slightly better than a flashlight from the pound store.


I will also have to change the weight rollers as they are getting old. Just not sure what weight to go with here. I rather go for more torque from the get go instead of a bit higher top speed. right now it wont start move until its on quite high RPM (ive no RPM meter so cant say exact) i would rather it start to move on a lower RPM if possible. Would anyone be able to advise on what weight is most suitable?

And finally. Too Loud EXHAUST - previous owner have added some upgrades as i will list below, specs from the add where he sold it. Anyway, its a very loud exhaust now, as i think due to get maximum effect out of everything. But i feel its too loud and sharp (as 2 strokes usually gets) its quite uncomfortable to listen to for too long time. if i were to put on a more muffled exhaust to get noise down a bit. how much effect would i lose? can anyone advise of an exhaust that would suit my needs?


Anyway, a long first post from an old guy who forgot how fun it can be with mopeds and scooters. All input will be greatly appreciated. Thank you//Peter


Specs

• Yamaha aerox 2000 70 cc stage 6 cylinder (NOT 80 AS HEADLINE SAYS)
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• Basically everything is new installed last summer almost all parts are almost 1 year old.
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• New stage 6 chrome exhaust has a little dent from over turning
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• Malossi racing variator
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• Brand new kevlar racing belt malossi
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• Racing clutch with black spring
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• New oil in transmission gears
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• All starter components replaced and are new, ( motor, gears, flywheel etc..)
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• New water pump
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• Oil pump and tank removed self mix is necessary this is due to the engine being 80cc and needs little bit more oil than original 49cc
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• New magneto coil
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• Racing CDI
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• New spark plug
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• Temp sensor shown on digital display
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• Stage 6 street race cast iron 80cc cylinder head and piston
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• Stage 6 replica exhaust
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• Racing shaft bearing
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• Rear disk pads new
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• Front disk pads are old but 80% so they were not changed but i have them in the pack new
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• I think 19.5 dellrotto carb ? Or 17?? Need to double check
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• New air filter box and malossi filter
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• Also comes with jets thin 80 to 100 .
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• Alarm disk lock with 2 keys
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• Chain lock with 2 keys