| Yes, as mentioned above, do check out your regulator; you'd be lucky if it's survived unscathed. Get the engine warm and put a multi-meter across the battery terminals. Make sure it's set to the 0-20V DC range. YTou should be seeing arounfd the 14V mark. If it never gets up above about 13V, regardless of engine speed, or if it can increase to over 15V, then I'd say your reg/rect was clapped.
Remember a brand-new and fully charged battery will start the bike and run the engine without a rectifier (or indeed a alternator). You wouldn't get far before it died on you, though. | 
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