If you have the proper recoil starter on your 185s, the decomp cable hooks into the same side that the pull rope handle is on. There are several more internal parts on a decomp recoil starter than on a standard recoil starter. You should be able to find a downloadable shop manual on here that will show all the items that you need to know. Welcome to the boards and you should be able to find all the info you need. Post some pics of your 185s. Alot of people on here own them including me except mine have rear suspension kits and aftermarket front ends. Just do a "search" for "suspension 185s.
Nicholson 500x (Project)
Nicholson 185s
Nicholson 110 (That takes an atc70 tank)
Ascott 500 head/350x (Project)
Homebuilt Racer Chromoly Suspension 110 (Ragin Runt)
PK Racing Suspension 70
A+ Inc Suspension 70
AWS Aluminum 90 frame
Hi Performance ATC Suspension frame rd350
Hi Performance ATC Suspension frame 90