Honda CB360 YOSHIMURA kitted Road Racer

This bike is purpose built for period racing utilising a CB360 Honda twin. Standard 65mm bore taken out to 71mm using YOSHIMURA 450 Honda 11:1 pistons.

List of bits'n'pieces: Dry clutch, YOSHIMURA pistons, TIGHE cam, DYNA ignition, polished conrods, ported & polished head, s/steel valve & h/d springs, brass guides, lightened  & polished rocker arms, straight cut primary gears, custom frame re-jigged by EMU Engineering, Ducati Brembo calipers, Marzocchi forks, Speedline 5 spoke 18" wheels, K&N air filters, 32mm Dellorto carbs, Aircraft style filler cap, TAIYOGIKEN tank overflow valve, Oil cooler with braided lines, alloy rear sets, steering damper, 2 into 1 megaphone, race fibreglass. Honda power with Ducati handling.

Went around Lakeside Raceway in 67s. Bike has run 14.1 second standing start 1/4 mile at 93mph with race gearing. Variously eligible for Australian Forgotten Era, Formula 3, Thunderbikes. Bike is now retired from racing duty.

John Miller
jmiller@brisnet.org.au

CB 360 RR Specifications

Engine:

71mm CB450 11:1 pistons

Polished conrods

Ported and polished head

S/Steel valves with H/D springs

Brass valve guides

Tighe 405 camshaft - 245 degrees with .345" lift

Lightened and polished rocker arms

Straight cut primary drive

Dry clutch conversion

Oil cooler with braided lines

2 into 1 extractors

Frame:

Custom Chrome Molly

Jigged and tracked by Emu Engineering

Twin Mulholland shocks

Alloy rear sets

Steering damper

Running Gear:

Ducati Marzocchi 35mm forks and clamps

Duacti Speedline 18" mag wheels

3 x Brembo discs

Aluminium rear sproket and 520 chain

Bridgstone tyres

Ignition:

CB360 points with Dyna ignition booster

Platinum plugs

12 volt total loss

Carby:

2 x 32mm Delorto - Main jet 122, Start jet 75, Needle and seat 250, Idle jet 60, Atomiser AB265, Pump jet 50, Needle K6, Slide 70, Float height 19 mm.

Page last updated: 03 September, 2003