What it does "suffer" from, like the CBR, VFR (non uk one) and RVF400 is running 35w headlight bulbs just wired directly though a switch, not a 55w (normal H4 H/L bulb) and not via a relay like most export bikes. Melting the main beam switch (i.e. the little red button) is common on the 400's.
I'd check there.
_________________
Please do not PM me technical questions, if you can't find it on the Forum start a thread