Motorcycle Repair

[cnirmal]

Hello, I have recently bought a 1990 Yamaha Virago XV750 and I am new to the Motorcycling world.
I am facing a problem with the my motorcycle. The battery seems to loose all its charge. I need to show the motorcycle to a mechanic since It is not charging the battery while driving (or some other problem that I dont know of). I dont know what is the exact problem and dont know how to check if the alternator is working.
Can anyone suggest me a good, fast and cheap motorcycle mechanic in or near the Malden,MA area.

[KillBill]

A.
Custom Cycles
- maps.google.com - (781) 321-9966 - 1 review
B.
GP Motor Cycle Supply
- maps.google.com - (617) 884-8877 - 1 review
C.
Cycles 128: Arlington GBM Greater Boston Motor Sports
- Greater Boston Motorsports and BMW of Cambridge: Honda ~ Kawasaki ~ Suzuki ~ BMW ~ Kymco…Motorcycles, ATVs, Scooters, Snowblowers, Generators, Power Equipment and Personal Watercraft Dealer - (781) 648-1300 - 1 review
D.
Milwaukee Iron Works
- MILWAUKEE IRON CYCLE WORKS INC. JAMAICA PLAIN, MA (617) 524-5452 - (617) 524-5452 - 2 reviews
E.
Noah's Motors
- maps.google.com - (781) 233-1616 - more
F.
Extra Performance
- extraperformance.com - (617) 436-8923 - more
G.
A & A Motorcycle Repair
- maps.google.com - (781) 894-4294 - 1 review
H.
Lynnway Cycle
- maps.google.com - (781) 592-8585 - more
I.
Mark's Motorcycle Service and Machine Co
- maps.google.com - (781) 275-1131 - more
J.
Baystate Motorcycle Service
- maps.google.com - (781) 899-1068 - more

[Ericthejet]

Have you serviced the battery? Fluid levels, etc?