Installed new exhaust valve servo works great!
I had some troubles with the last servo, stripped gears. I found a salvaged one on ebay for only 15$. I have been riding with the exhaust valve safety wired to the full open position. There was a noticable loss of power bleow 5000 RPM. Also it would backfire a little during down shifts.
With the new servo and a exhaust valve working properly, there is no backfireing and the is more power at low RPM. At high RPM the is no difference. I think that there is a good reason for the valve to be in working order.
Those of you with servo problems. If you can find a cheap servo, it is most likley a good idea to fix it.
Also I attached a picture of the bike with the Devil high mount exhaust.