Practical Sportsbikes (UK)

PROJECT ZX990 TURBO

Yep, part 19. We must be getting close. Expert help is sought for a new top yoke while Chris finds a perch

- Words: Chris Newbigging Pics: Simon Lee

After two gallons of Xmas mead Old Farmer Chris attacks his turbo hybrid tail unit with a bow-saw, while a civilised expert machinist in town makes him a proper top yoke

This project doesn’t need any more delays or hold-ups. Progress is quite leisurely enough without creating more opportunit­ies to be sitting on our hands.

One important job to complete before we can consider the dry build over is the top yoke – we need another that will allow us to run the forks a little lower relative to the chassis, to create clearance for the turbo behind the front wheel. Fen-gineer Simon recommende­d a friend (more a reluctant acquaintan­ce, we suspect) Tom Busfield, trading as Deftcad in Lincolnshi­re.as the name suggests, his skill is using the humble computer to design components in all manner of materials, then to command a milling machine to make it from aluminium-alloy.

The sensible thing to do is leave the rolling chassis with him, which precludes further work on it, so best button up any final jobs. Thinking further down the line (not that far), the bodywork will need paint. Good paintwork isn’t an overnight service, so you want to deliver it at the earliest opportunit­y. Our original fairing fits fine, it’ll just need some new support brackets to replace those that would have attached to the ZX-7R’S original engine.

The tank too is ready – but we need a seat. Finding anyone prepared to sit in the

 ??  ?? Old Farmer Chris imagined Leo Sayer might like to hear his version of You Make Me Feel Like Dancing
Old Farmer Chris imagined Leo Sayer might like to hear his version of You Make Me Feel Like Dancing
 ??  ?? Old Farmer Chris works out how many holes he’ll have to drill for the baler-twine fasteners
Old Farmer Chris works out how many holes he’ll have to drill for the baler-twine fasteners

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