2009 yamaha vino classic50

[br4inl3ss]

hi all.
this is my brother scoot.
its a 2009 yamaha vino classic 50 ( yes the rarer 50 not the 125 ).

since he own it it have a lighting problem and we never really tried to find out what was the problem, since its a yamaha and like italian brands they LIKE doing weird nosense stuff. but we found out its not the case. there is really a problem.

the problem is the headlight is bright at idle but it dim if we give throttle ?
can it be the regulator ? ( ive never seen a regulator do this tho ).
all the rest is perfect. charge extremly good and everything.
full brightness at idle.

thanks

[br4inl3ss]

update on that.
there is NO ac for the headlight on this scooter its DC.

but why do we have both AC and DC reading on the same damn wire ? and tis the same on 2 wire....
it also get VERY hot. burnt my screwdriver handle in less than 5 second. but some say tis normal the other say its not. ok fuck that temp thing.

why would we have both Ac and DC reading no the same wire ?