Norlett 5000 rotavator

Hello have you any photos I have some Norlett instruction books for Bison  and Buffallo models which I think one of these could be the one you have which engine does it have  jezza

Hello it also a Flymo if the engines stalling when you pull the clutch in the belts probably to tight wrong size fitted they need about quarter to half inch movement if the rotas turn when machine lifted up and clutch engaged it's definitely to tight the clutch cable could be worn or wrongly adjusted,to check belt size measure be tween engine pulley centre and drive pulley centre e.g. 23 inch between centres double for a 46 inch inner circumference belt it an A section belt  jezza