HM Racing Workshop Vlog 1 - 2023 Manx GP Senior Classic race prep

In this video we catch up with Aaron Hughes and Andy Hornby at HM Racing and we spend a few hours with them while they complete a first start and heat cycles on one of their 1972 Honda 500 fours.
Aaron and Andy will be travelling to the Isle of Man shortly to take part in the Senior Classic on their two 1972 Honda 500 fours.
Some notes from Aaron on the engine build:
- 64 bhp on the dyno at the end of the day
- crank lightened and balanced
- stock cam re-ground and profiled by Kent Cams
- standard 56mm bore with billett pistons
- Arrow con rods.
- 4.5mm valves stems.
- Serdi Multi angle cut valve seats.
- Nova gearbox and dry clutch.
- Ignitech total loss electronic ignition.
- Keihin CR 29 Carbs running 108 main and Y1 needle
- 0.5mm skim on the cylinder
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The Classic Motorcycle Channel is for people who love classic, vintage and antique motorcycles. We are passionate about classic motorcycles and produce high quality motorcycle profile videos, restoration videos, restorer profile videos and also anything that takes our interest.
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KZbin: @motofilmer
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- John Oakes. John is a classic motorcycle enthusiast, rider and restorer and works closely with us on all our video content.
Instagram: @classicbikeman
- Dave Mitchell. Dave owns and runs a classic motorcycle workshop called Mitchell's Classics. His workshop is based near Maresfield, England.
Website: www.mitchellsclassics.co.uk
// A BIG THANK YOU TO
- Aaron Hughes for inviting us along to his workshop to film this.
Website: www.hmracing.co.uk
Instagram and Facebook: @hmracinguk
Andy Hornby for taking the time to film with us.
Instagram: @42.racing
- Alex Rollings for filming and editing the video.
KZbin: @motofilmer
Instagram: @motofilmer
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[@raysonsuk]

Good Luck Andy ✊️😊

[@MadChalet]

Fun video! The '72 500-4 was my first bike. I did not explore its potential by a long shot. It's cool to see these guys going for it ... I hope we get to see the bike when it's 'track ready.'

[@Bigman6357]

Great work you guys

[@plan-bmotos]

Nice work guys!

[@johnpowell1955]

Brilliant insight, looking forward to next vid and live on the island :)

[@TheClassicMotorcycleChannel2]

Thanks for your nice comments :)

[@bradkorando]

Excellent video and fascinating look into the involved process that follows an engine rebuild in preparation for the TT. Is that Dave's tube of WELLSEAL making a cameo appearance at 20:40 in the video? ;) Brilliant work by Aaron and Andy, thanks for sharing a behind the scenes look with us. Good luck with the bikes!

[@TheClassicMotorcycleChannel2]

Ha, thanks Brad, yeah, I like the Wellseal cameo too :)

[@gazzafloss]

Did you check the number of fingers on your hand after using that rag on the oil leak, so close to the final drive chain 😅. Love those small capacity Honda fours, in the '80's I had a 400 four as a daily rider, for a few years and a 750 four for the weekend special. Both ultra reliable, particularly after owning British bikes for years (since 1960, yes, I'm old) before. Did I mention oil leaks?

[@LemonDrizzleGang]

Fantastic Video - Did you go to the IoM and film ?

[@TheClassicMotorcycleChannel2]

Nope, didn't have the budget for that!

[@hermanhandlebars2687]

Is 1972 classic now! 50s more like

[@LemonDrizzleGang]

Pre-1919: Veteran 1919 to 1930: Vintage 1931 to 1945: Post Vintage 1980 to 2000: Modern Classic