Written on: 08/05/2010 by ajkillick (1 review written)
I've had my 470 for 8 years and has given me no trouble. I change the oil and spark plug every 2 or 3 years and sharpen the blade. This year the engine started to hunt and sounded like it was misfiring. I changed the worn carbuettor diaphragm (£1.75) which is a common fault and now it runs like new again.