Tim­ing discs

Performance Bikes (UK) - - The Garage | 360º Garage -

‘It is crit­i­cal on a Nor­ton to get its valve and ignition tim­ing ab­so­lutely per­fect, so I use tim­ing discs all the time. If you are just a bit off you lose all the power. The open­ing is ac­cu­rate down to thou­sands of an inch, that’s how pre­cise you need to be when you are rac­ing. Each cam is on an ad­juster and the main cam is also on one, so there is a lot of fid­dle room! I can take half a day to set up a mo­tor if I’ve never worked on it be­fore, but if I know the mo­tor I can do it in a few hours. It’s a very in­ten­sive job and you need to con­tin­u­ally strip and re­build the mo­tor. I’ll be hon­est, though – I re­ally en­joy do­ing it.’

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