A friend of mine posted this recently on Faceache. His team ACR Racing won the Classic TT Superbike race with aussie Davo Johnson on board. Dave's only problem was the heavy throttle gave his serious wrist problems - and he's a fit guy!
"I have had a batch of -40% throttle return springs made for the Keihin FCR carbs fitted to ZXRs and ZX7RR. Gets rid of the heavy throttle as takes a good bit less effort to keep it open. Same as the no longer available Kawasaki race kit part 92144-1734. Can be used in any FCR carb as well. £20 posted in the UK."
If you're interested, drop me a PM and I'll pass it onto Alasdair. Cheers
Lightweight FCR springs
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Lightweight FCR springs
1996 TRX 850, blue, Ohlins 46HRCLS, Race Tech Gold Valves, 0.90 springs, Venom pipes, R6 brakes............
1974 Yamaha RD250A, Candy Blue
1998 Yamaha SZR660, blue of course
1967 Yamaha TD1C 250, Blue and white
1974 Yamaha RD250A, Candy Blue
1998 Yamaha SZR660, blue of course
1967 Yamaha TD1C 250, Blue and white