Thanks Gadge your a legend, that service manual will help lots if I decide to rebuild the engine.
I gaped the valves the same as the Kool bore specs as I thought they would be the same I just wanted to double check In case there was a slight difference between the two as I only had the service specs for the other engine. I should be all good now with this service manual. I will also check now the rpm specs with my TinyTach to see if I can sort the linkages/carby out and the stalling problem.
Thanks.
BS