Long story short. I recently purchased a 79 GS750. Took it to the mechanic would got it roadworthy. Engine wise all he did was put new plugs in it as it had been sitting in a shed for 2 years doing nothing. He suggested i get it roadworthy and registered take it for a 100km ride to get things moving again because things like the clutch plate was stuck together and it would be easier to see what needs servicing once it had a good run. Now that was 2 weeks ago. Up until this morning(the day of the visit to the RTA) The bike has started first time no problems. I get up this morning and it doesn't!! It is turning over but will simply not fire. I am thinking that the spark plugs could be fouled is that a safe assumption. Mind you i have only ridden it a total of about an hour.