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Author Topic: rc166 1966 6-Cylinder 250cc GP Racer  (Read 1458 times)

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Offline jeffg

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rc166 1966 6-Cylinder 250cc GP Racer
« on: January 25, 2016, 01:47:42 PM »
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Offline bwaller

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Re: rc166 1966 6-Cylinder 250cc GP Racer
« Reply #1 on: January 25, 2016, 07:02:58 PM »
I only heard the bike once at Mosport. It could be heard the whole way around the track, simply unbelievable.

In August 2017 our VRRA will host a 50th reunion of the 1967 Canadian GP. Mike Hailwood won the 250 class on the "six". We're hoping to have one of these fascinating motorcycles for the weekend. If you want to see a real McCoy, mark it on your calendars.
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Offline demon78

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Re: rc166 1966 6-Cylinder 250cc GP Racer
« Reply #2 on: January 26, 2016, 03:37:18 AM »
Jesus wouldn't you love to have one of them to play with Brent?
Bill the demon.
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Offline Steve F

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Re: rc166 1966 6-Cylinder 250cc GP Racer
« Reply #3 on: January 26, 2016, 04:28:52 AM »
Got to thinking about the piston size for this bike.....250cc, 6 cylinders?  Yikes!  they're really tiny!
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Offline bwaller

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Re: rc166 1966 6-Cylinder 250cc GP Racer
« Reply #4 on: January 26, 2016, 05:20:45 AM »
If you haven't seen this take a look.

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Offline Stev-o

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Re: rc166 1966 6-Cylinder 250cc GP Racer
« Reply #5 on: January 26, 2016, 06:28:51 AM »
Quote from: Steve F on January 26, 2016, 04:28:52 AM
Got to thinking about the piston size for this bike.....250cc, 6 cylinders?  Yikes!  they're really tiny!


Was thinking the exact same thing.  But wow, does it scream!
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Offline bwaller

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Re: rc166 1966 6-Cylinder 250cc GP Racer
« Reply #6 on: January 26, 2016, 07:51:29 AM »
Fast forward through the vid above to see the crank assembly. This is stuff from the early to mid 60's. Honda really dumbed things down when they built our SOHC4's!!
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Offline grcamna2

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Re: rc166 1966 6-Cylinder 250cc GP Racer
« Reply #7 on: January 26, 2016, 08:17:08 AM »
That first post was just a 'putt-putt' around the small parking lot,probably barely got'er out of the pilot jets..
I'd like to see a full race version of the CBX  ;D
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Offline simon#42

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Re: rc166 1966 6-Cylinder 250cc GP Racer
« Reply #8 on: January 26, 2016, 10:44:32 AM »
it certainly did not like being ridden that slowly , i have seen one ridden properly and it is a sight and sound to behold
not sure if this is a genuine bike , Honda bought two of the George Beal replicas for demonstration purposes .
i thought the only genuine running one left was the team obsolete bike .
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Offline flybox1

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Re: rc166 1966 6-Cylinder 250cc GP Racer
« Reply #9 on: January 26, 2016, 12:28:14 PM »
Quote from: bwaller on January 26, 2016, 05:20:45 AM
If you haven't seen this take a look.

The faces and reactions are priceless when he fires it up  ;D
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Offline grcamna2

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Re: rc166 1966 6-Cylinder 250cc GP Racer
« Reply #10 on: January 26, 2016, 04:00:55 PM »
Quote from: flybox1 on January 26, 2016, 12:28:14 PM
Quote from: bwaller on January 26, 2016, 05:20:45 AM
If you haven't seen this take a look.

The faces and reactions are priceless when he fires it up  ;D

That one guy in the front looked like he had his eardrums pierced-through w/ that 'Ripping' exhaust shriek;it sounds to me like it's ripping the air in pieces  :D ;D
That 250cc Six has an unmatchable sound man.  ;D
« Last Edit: January 26, 2016, 09:31:41 PM by grcamna2 »
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75' CB400F/'bunch o' parts' & 81' CB125S modded to a 'CB200S'
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Offline Retro Rocket

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Re: rc166 1966 6-Cylinder 250cc GP Racer
« Reply #11 on: January 26, 2016, 09:12:48 PM »
Quote from: bwaller on January 26, 2016, 05:20:45 AM
If you haven't seen this take a look.


Thats a 6 cylinder watch.... ;)
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Offline grcamna2

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Re: rc166 1966 6-Cylinder 250cc GP Racer
« Reply #12 on: January 26, 2016, 09:57:22 PM »
I love how 'locked-in to the task at hand' those two 'Techs' w/ the T-handles are in the video and really enjoyed seeing the design of the dual shim bucket holder pieces that covered each pr. of valve springs,I imagine they keep each pr. of valves in very straight alignment to their respective valve guides underneath.This engine is built very precise and designed to hold together under very stressful high rpm racing.The design of the upper part of the cylinder head is great for air cooling the engine back then. Thanks for uploading this video 'Bwaller'  :)
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75' CB400F/'bunch o' parts' & 81' CB125S modded to a 'CB200S'
  I love the small ones too !
Do your BEST...nobody can take that away from you.
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