whoops yeah release any air pressure at the reservoir... most likely has a schrader valve and a gauge
My res was in my engine room but it could be elsewhere.... When I had to bleed mine because vandals had cut the hoses while cutting wires out to steal for scrap it went pretty well (WAY easier than replacing all the missing wiring) and it was a dual helm but other than my experience all I have heard from others have been horror stories like ferm mentioned.
Here is the bleed procedure
http://www.hypromarine.com/UserFiles...ne%20bleed.pdf