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Author Topic: Does this 750K5 look a good buy?  (Read 1953 times)

Offline RGP750

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Re: Does this 750K5 look a good buy?
« Reply #15 on: July 19, 2017, 07:59:28 PM »
From an engineering point of view re "d " washers why would changing the bolt diameter stop the top yoke breaking??
the stress is in the ally casting and doesn't change by bolt size surely????
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Offline Trigger

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Re: Does this 750K5 look a good buy?
« Reply #16 on: July 19, 2017, 08:15:51 PM »
Quote from: RGP750 on July 19, 2017, 07:59:28 PM
From an engineering point of view re "d " washers why would changing the bolt diameter stop the top yoke breaking??
the stress is in the ally casting and doesn't change by bolt size surely????

Oddjob has already been through this before but, I will go though it again. From unicorn to K4 on the 750 and 500 the bolt was 8mm into a 8.3mm hole, on these measurements a D spacer is required. In late 1974, Honda upgraded the top yokes with better alloy and used a 7mm bolt into a 7,3mm hole. Therefore more alloy it there to take the stress  ;)
 
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Offline RGP750

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Re: Does this 750K5 look a good buy?
« Reply #17 on: July 19, 2017, 08:42:27 PM »
Sorry Trigg , I'll go with Better spec Ally but where i have seen them break the bolt size will be irrelevant :-\
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Offline JamesH

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Re: Does this 750K5 look a good buy?
« Reply #18 on: July 19, 2017, 09:05:33 PM »
Maybe this is a UK bike thing? Every original US import K5/6 that I've had in does have the D spacer...?
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Offline Trigger

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Re: Does this 750K5 look a good buy?
« Reply #19 on: July 19, 2017, 09:21:11 PM »
Quote from: Jamesh_sussex on July 19, 2017, 09:05:33 PM
Maybe this is a UK bike thing? Every original US import K5/6 that I've had in does have the D spacer...?

Just dug out a original old microfiche on a USA K6 and can't see any D spacers listed but, clearly listed are the 7mmx54mm bolts  ;)
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Offline JamesH

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Re: Does this 750K5 look a good buy?
« Reply #20 on: July 19, 2017, 09:28:12 PM »
Microfiche must be wrong Trigger. I never believe what's in the parts book / microfiche
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Offline AshimotoK0

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Re: Does this 750K5 look a good buy?
« Reply #21 on: July 19, 2017, 09:30:29 PM »
Quote from: Trigger on July 19, 2017, 09:21:11 PM
Quote from: Jamesh_sussex on July 19, 2017, 09:05:33 PM
Maybe this is a UK bike thing? Every original US import K5/6 that I've had in does have the D spacer...?

Just dug out a original old microfiche on a USA K6 and can't see any D spacers listed but, clearly listed are the 7mmx54mm bolts  ;)

Yes they are not listed for K6 but everyone else telling me K5 had em . Ha ha don't have sleepless nights over it  ;D K5 was never officially sold here so can't be a UK thing
« Last Edit: July 19, 2017, 09:35:32 PM by AshimotoK0 »
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Offline JamesH

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Re: Does this 750K5 look a good buy?
« Reply #22 on: July 19, 2017, 09:31:17 PM »
I'll take them off my K6 and throw them then..!
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Offline Trigger

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Re: Does this 750K5 look a good buy?
« Reply #23 on: July 19, 2017, 09:31:38 PM »
Quote from: Jamesh_sussex on July 19, 2017, 09:28:12 PM
Microfiche must be wrong Trigger. I never believe what's in the parts book / microfiche

just proves my original point that parts lists are wrong  ;D
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Offline JamesH

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Re: Does this 750K5 look a good buy?
« Reply #24 on: July 19, 2017, 09:31:53 PM »
Ha ha touché
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Offline Trigger

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Re: Does this 750K5 look a good buy?
« Reply #25 on: July 19, 2017, 09:35:32 PM »
 

Me have a sleepless night, never heard of  ;D ;D. It is all down to if the top yoke is the superseded part and bolt hole size  ;)
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Offline Drew400

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Re: Does this 750K5 look a good buy?
« Reply #26 on: July 25, 2017, 10:18:21 PM »
Thanks all. I think I've learned something from this thread! ???

Cheers, D.
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