80 Plus cylinder compression values

[simon.d.hewitt@gmail.com]

I think I have a problem with my new (to me) Douglas 80 plus. One more resto for appearance not for go? Anyway, compression figures:
        LHS.  RHS
Dry.  130.  80
Oily.  155.  100

With both spark plugs out, throttle held wide open, kicking as swift as I can. 'Oily' is with 5 squirts of straight 40 down the plughole from an oil can. Obviously the RHS needs attention, but does anyone have a figure that should be reached? IS the left cylinder OK or not?, 130-155 seems good. 

PS I bought the bike from the estate of a guy apparently known to the LDMCC, near Cambridge? Nice maroon 80Plus. 

Thanks all

[EW-Ron]

The general wisdom is that if introducing oil into the cyls improves the pressures,
then the ring seal is not great.
Simply re-ringing with new rings may bring back all of the sparkling performance.
Subject to all else being good ...

BTW, compression tests are generally required also to be performed with the engine hot.
Has this engine been run recently when you did these ?
If the engine has merely been parked for a while, and cold, it may not quite be a true test ?
Hopethishelps.