martedì 31 maggio 2016

Harris F1 / JAL restorations











" ..Both bikes are Harris F1 made for the Kawasaki GPZ750 engine and raced in the World F1 TT championship in 1984 which was the 1st year of the 750cc bikes in this class. Riders were Jim Wells (7) and Asa Moyce (45) both were well known privateers. Asa finished 8th in the world championship (1xDNF) and Jim finished 13th but was unable to compete in all races due to injury. Asa and Jim had the same sponsorship deals and shared race expenses but they built their own bikes, so there were some subtle differences between the bikes.
These are both original bikes and importantly they are not modernised but restored "as they were raced", pictured together and both up running for the 1st time since 1985.
Note - (text in brackets = Asa Moyce's bike only)
Chassis: Harris F1 Chassis numbered. Rising rate with rear WP shock.
Alloy Tanks
Kayaba Forks RG500 Mk 8-9 (Suzuki works type XR45)
Brembo Magnesium QR Callipers - 4 pot up front, 2 pot rear
Brembo discs on magnesium carriers.
Harrris billet yokes (adjustable)
Dymag 16" TT1 front and TZ750 spec 18" rear wheel.
Harris F1 Seat
Suzuki Mk9 Fairing.
Engine:
Kawasaki KZ750 now Wiseco 810cc (Omega) weight matched.
Lightened crank, machined over with almost 6lbs removed.
Balanced con rods (peened and polished).
Big Valves with bucket over shim / race springs.
Wells Cams, strengthened cam chain tensioner.
Flowed heads (Mistral).
Standard 5 speed (Works Moriwaki close gearbox).
Strengthen clutch.
Special Boyer (Mistral single spark distributor ignition).
Keihin CR33mm (Keihin CR33.5mm works magnesium carbs).
310lbs with oil
104HP...."

- JALrestorations

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