I found that the engine clutch was not operating as it should, it was engaging but not releasing. I stripped it down and lubricated the shaft, cleaned up the facings and realigned the deck and motor. The clutch does not require much movement to engage and disengage, after some careful adjustment it works perfectly.
Greased all the chains and moved onto the engine, flushed out the fuel tank and removed the carby. I found no float in the fuel bowl just a lot of mud wasp cocoons, now I need a float. Swapped the carby off my Ensign and then dropped the oil. Oil was very clean but 50 years old. Everything back together
