< AllMoto's Motorcycle Investor mag

Motorcycle Investor mag

Millyard 5-pot screamer for auction

(July 2022)

Hand-made two-stroke monster on the market

Millyard Kawasaki

A five-cylinder Kawasaki two-stroke by Allen Millyard is up for auction with H&H in the UK. It’s carrying an estimate of Au$70-87,000 (US$47-60,000, GB£40-50,000)

He built this 850cc five-cylinder bike in 2005 from a pair of Kawasaki KH500 triple engines. (See his YouTube video.)

The crankcases are cut by hacksaw into sections and welded back together as a five-cylinder crankcases.

He stripped down two triple crankshafts and reassembled them as one five-cylinder crankshaft, at 1-5-2-4-3 interval.

The gearbox output shaft was extended to allow the engine to be fitted centrally in the frame.

The engine was then ready for assembly with one centre cylinder, two left-hand cylinders, and two right-hand cylinders.

The oiling system was modified by joining a pair of three-cylinder oil pumps together.

When Allen builds his machines, he likes to retain the original lines and features wherever possible.

Stock paintwork was applied by Vintage car painter Neil Howarth. The classic parts were cleaned. All brightwork parts were re-plated and the frame was powder coated.

The last job was to make the five steel expansion chambers, which were all done by hand. The cones are first made in then traced around onto a steel sheet.

Allen used tin snips to cut the sections, then hand-rolled around a piece of scaffold tube and gas welded them together. Once fitted to the bike, they were chrome plated.

H&H claims this one of just three such machines built, although we believe there are more in other engine capacities (including a 666cc and a 1250cc) – again, very few in number.

Millyard is famous for building some wild machinery over time, including a Dodge Viper-powered machine and a Kawasaki Z1-based V8 (see the YouTube video).

See the auction listing here and the complete auction catalogue here.