Author Topic: top fork material  (Read 1220 times)

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Offline wolf550

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Re: top fork material
« Reply #25 on: September 11, 2022, 04:58:54 PM »
since I did not have a bandsaw to cut the gap at clamping area and my grinding disks would suck, I went and bought a hacksaw to start practicing. checked the gap on original with the blade and fit snug but went through.
74' CB550 (Sold)
71' CB500/550 (Sold)

Offline Stev-o

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Re: top fork material
« Reply #26 on: September 12, 2022, 07:54:10 AM »


my wife did say uh uh you are not putting that on my bike to test! LOL


Funny!   Smart woman [?]....
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Online PeWe

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Re: top fork material
« Reply #27 on: September 12, 2022, 11:12:38 AM »
Yamiya make new for CB750. Stronger aluminium or how the mold look like?
https://www.yamiya750.com/index.php?main_page=product_info&cPath=246_251_144_72&products_id=716
CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline wolf550

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Re: top fork material
« Reply #28 on: September 12, 2022, 01:11:49 PM »
it is good to see how these triples were cast. it looks like I will have to flip upside down and try.
74' CB550 (Sold)
71' CB500/550 (Sold)

Offline wolf550

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Re: top fork material
« Reply #29 on: September 12, 2022, 01:15:24 PM »
I did see that the triple that was listed to bid on ebay went for a more down to earth price of 152.50 plus 9 bucks shipping.
there was another person selling one for 400 elsewhere but who knows.
74' CB550 (Sold)
71' CB500/550 (Sold)

Offline wolf550

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Re: top fork material
« Reply #30 on: September 16, 2022, 04:51:22 PM »
got the drill bits and got to work
after I finished drilling those out I will not do that again
unless.... I get myself the right equipment that is needed to do that!
both fork tubes are snug on the way down and the steering stem stops at the bottom.
I will say that not knowing the basics of machining I guess I should not drill at both the top and bottom or it might not line up.
Ill go ahead and finish cutting the slots and drilling the clamp holes for bolts and give it the torque test.
74' CB550 (Sold)
71' CB500/550 (Sold)

Offline wolf550

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Re: top fork material
« Reply #31 on: September 16, 2022, 04:52:35 PM »
nothing a few beers couldnt fix
74' CB550 (Sold)
71' CB500/550 (Sold)

Offline Stev-o

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Re: top fork material
« Reply #32 on: September 19, 2022, 02:21:51 PM »
You are very creative!
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline Don R

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Re: top fork material
« Reply #33 on: September 21, 2022, 08:39:02 PM »
 If you used old carburetor bodies to melt down, you have Zinc in your alloy. 
No matter how many times you paint over a shadow, it's still there.
 CEO at the no kill motorcycle shop.
 You don't need a weatherman to know which way the wind blows.

Offline wolf550

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Re: top fork material
« Reply #34 on: September 22, 2022, 08:16:56 AM »
That zinc is some tough stuff to try and drill through! It's probably why they did the triples like that.
74' CB550 (Sold)
71' CB500/550 (Sold)