Quick Stats

1981-84, 550cc DOHC four, 56hp 115mph 50mpg 420lb

What to Expect

Clutch, tensioner and exhaust valves go first. Signs of a good bike are slick gearbox (goes notchy with age), rattle free camchain (tensioners go for 20/30k) and lack of rust (almost impossible unless refurbished at this age). Some went to 60/70k when the pistons and camshafts died.